Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

BUF - SEA

Find cheap flights from Buffalo to Seattle from C$ 164

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Seattle departing on 21/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 26/5
Sun 2/6

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Seattle.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Seattle.
In the last 7 days, travellers have searched 44,335,567 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheap flight deals from Buffalo to Seattle (BUF-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:35 p.m. - 10:49 p.m.BUF-SEA
10h 14m1 stop
11:59 p.m. - 10:42 a.m.SEA-BUF
7h 43m1 stop
C$ 328JetBlue
Find Deal
Sat, 1 Jun - Sun, 2 Jun
10:41 a.m. - 4:33 p.m.BUF-SEA
8h 52m1 stop
11:50 p.m. - 10:56 a.m.SEA-BUF
8h 06m1 stop
C$ 335American Airlines
Find Deal
Fri, 20 Sep - Wed, 25 Sep
3:35 p.m. - 10:49 p.m.BUF-SEA
10h 14m1 stop
11:59 p.m. - 10:42 a.m.SEA-BUF
7h 43m1 stop
C$ 372JetBlue
Find Deal
Sat, 1 Jun - Thu, 6 Jun
7:07 p.m. - 9:22 a.m.BUF-SEA
17h 15m1 stop
10:24 p.m. - 6:02 p.m.SEA-BUF
16h 38m1 stop
C$ 461Frontier
Find Deal
Fri, 24 May - Fri, 31 May
5:28 a.m. - 10:18 p.m.BUF-SEA
19h 50m1 stop
6:10 a.m. - 4:57 p.m.SEA-BUF
7h 47m1 stop
C$ 484Delta
Find Deal
Thu, 30 May - Wed, 5 Jun
5:28 a.m. - 10:18 p.m.BUF-SEA
19h 50m1 stop
6:10 a.m. - 4:57 p.m.SEA-BUF
7h 47m1 stop
C$ 491Delta
Find Deal
Mon, 3 Jun - Wed, 5 Jun
1:01 p.m. - 8:50 p.m.BUF-SEA
10h 49m1 stop
6:07 a.m. - 3:47 p.m.SEA-BUF
6h 40m1 stop
C$ 687Alaska Airlines
Find Deal
Tue, 13 Aug - Sat, 17 Aug
6:15 a.m. - 6:08 p.m.BUF-SEA
14h 53m2 stops
12:30 p.m. - 11:59 p.m.SEA-BUF
8h 29m1 stop
C$ 699United Airlines
Find Deal
Tue, 14 May - Wed, 29 May
4:36 p.m. - 11:59 p.m.BUF-SEA
10h 23m2 stops
6:07 a.m. - 3:46 p.m.SEA-BUF
6h 39m1 stop
C$ 716Alaska Airlines
Find Deal
Tue, 18 Jun - Tue, 25 Jun
6:00 p.m. - 10:22 p.m.BUF-SEA
7h 22m1 stop
12:55 p.m. - 4:33 p.m.SEA-BUF
24h 38m2 stops
C$ 728United Airlines
Find Deal
Fri, 20 Sep - Wed, 25 Sep

Flights from Buffalo to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Buffalo to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Buffalo to Seattle?

The average price of all flights from Buffalo to Seattle clicked on KAYAK for each day over the last 12 months.
For Buffalo to Seattle, Sunday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Seattle back to Buffalo, the best deals are generally found on Monday, with Wednesday being the most expensive.

What is the cheapest month to fly from Buffalo to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Buffalo to Seattle is November, where tickets cost C$ 465 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is C$ 858 and C$ 821 respectively.

How far in advance should I book a flight from Buffalo to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Buffalo to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 12 days before departure.

Which airlines provide the cheapest flights from Buffalo to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at C$ 164. KAYAK users also found Buffalo to Seattle round-trip flights on JetBlue from C$ 328 and on American Airlines from C$ 335.

Good to know

Low season

January

High season

August

Cheapest flight

C$ 164
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Buffalo to Seattle

When to book flights from Buffalo to Seattle

Are your dates flexible? Find out the best times to travel from Buffalo to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Seattle

  • Are there any transportation options to get me from the Seattle Tacoma International Airport to downtown Seattle?

    A very convenient choice for transportation from the airport is to travel on the King County Metro bus route 124, that can make the trip in around 40 minutes. You can also ride on the Sound Transit 1-Line that will take you from the airport to the downtown area in around 30 minutes.

  • If I plan on renting a car when I arrive at Seattle Tacoma International Airport, where will I find the rental car companies?

    All the rental car companies that operate at this airport do so at the offsite rental car facility. To access this facility after a flight, travel aboard one of the complimentary shuttle buses that passengers can pick up on the lower drive outside of the baggage claim level. There are pick-up points at both ends of the terminal building.

  • If I am going to be using a rideshare service to get me from the Seattle Tacoma International Airport after a flight, where should I plan on meeting my ride?

    All rideshare service vehicles will make their pick-ups at this airport on floor number three of the parking garage. Passengers should look for their vehicles in Parking Rows G, H, I, and J in both the Purple and Orange sections of the garage.

  • Are there any hotels that have a convenient location close to the terminal buildings at the sea Seattle Tacoma International Airport?

    A very convenient choice that sits right along Pacific Highway South across from the terminal building at the airport is the Hilton Seattle Airport & Conference Center, and passengers can access this hotel by walking directly from the airport to the hotel via the sky bridge. Travelers who prefer not to walk will also find this airport offers a complimentary airport shuttle.

  • What is the cheapest flight from Buffalo to Seattle?

    In the last 3 days, the lowest price for a flight from Buffalo to Seattle was C$ 120 for a one-way ticket and C$ 240 for a round-trip.

  • Which airports will I be using when flying from Buffalo to Seattle?

    Buffalo airport is called Buffalo and the only airport in Seattle is Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Buffalo to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Buffalo to Seattle?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Buffalo and Seattle, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Buffalo to Seattle, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Buffalo to Seattle are Alaska Airlines and Delta. With an average price for the route of C$ 616 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 471 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Buffalo to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Buffalo to Seattle

  • A fantastic way to get to the Buffalo Niagara International Airport (BUF) from the center of Buffalo without having to drive in your own car is to take the Line 24 bus operated by NFTA can make this trip in around 30 minutes.
  • If you plan on driving your own car to Buffalo Niagara International Airport, this airport allows you to book your parking and reserve a spot online on their website. Passengers looking for the most economical choice for parking at this airport should consider the Economy Parking Lot, that has ample blue signage showing its location just offsite from the airport property.
  • If you plan on taking a pet or a service animal with you through the Buffalo Niagara International Airport, it is important to know that this airport offers a pet relief area just outside of the terminal building as well as an indoor pet relief area with a location between Gates 11 and 14.
  • If you are looking for a way to pass the time before a flight from the Buffalo Niagara International Airport, this airport offers a barbershop that you will find on the upper level of the airport just before the security checkpoint.
  • If you are a mother who is nursing and traveling through the Buffalo Niagara International Airport, this airport features a nursing room that has a location near gate 14. The nursing room features a comfortable leather chair, power outlets, a table, as well as a sink.
See more tips

Top 5 airlines serving from Buffalo to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9115 reviews
7.3food
8.2boarding
8.6crew
7.9comfort
7.3entertainment
Airline reviews

The WIFI didn't work well enough to get through even 5 minutes of a movie I had selected (it just kept pausing and spinning), and I just gave up and read a book. The selection of movies was a little sparse though, so reading wasn't that bad of an option. This was an older 737-800, with undersized overhead bins -- but it doesn't make sense to me that we are told to slide our bags in with the wheels facing us (most people ignore that and put the handles facing us). This makes it more difficult to remove the bags (no handle). The flight went well, and the fruit/cheese platter I pre-ordered was good -- although it is a little annoying to have to pre-order for this (but I suppose it saves time). When I pre-order it automatically gets charged to my personal credit card (Alaska VISA), when I'd prefer to use my corporate card for that on business trips.

8.0 ExcellentAnonymous, Apr. 2024SNA - SEA
Read more about Alaska Airlines reviews

The WIFI didn't work well enough to get through even 5 minutes of a movie I had selected (it just kept pausing and spinning), and I just gave up and read a book. The selection of movies was a little sparse though, so reading wasn't that bad of an option. This was an older 737-800, with undersized overhead bins -- but it doesn't make sense to me that we are told to slide our bags in with the wheels facing us (most people ignore that and put the handles facing us). This makes it more difficult to remove the bags (no handle). The flight went well, and the fruit/cheese platter I pre-ordered was good -- although it is a little annoying to have to pre-order for this (but I suppose it saves time). When I pre-order it automatically gets charged to my personal credit card (Alaska VISA), when I'd prefer to use my corporate card for that on business trips.

It was our baby’s first flight and everything went perfect. The flight attendant gave him his first set of wings and we were smooth flying from there.

My flight went off without any hitch or issue. I anticipate issues every time I fly, luckily, I was wrong on this trip.

It was much better than expected. Short flight and smaller plane so no entertainment or food.

It took around two hours to depart. Just sitting in the tamarack waiting. It impacted my traveling plans in a very dramatic way. When we returned, it took around two hours for us to be able to get our luggage. Ridiculous!!

I thought every thing was good with the acceptation of the long layover between Seattle and the Tampa trip.

While the flight and the legroom was good boarding took a long time. The different groups Boarding made no sense as those in the back of the flight boarded last causing delays as people try to find room for their luggage in the upper bins. While there were plenty of seats on the flights We were spaced so that some rows were filled and others were empty. My first flight was very crowded and uncomfortable. On the way back both flights did not have Wi-Fi nor the entertainment package. We were only made aware of this a few hours before the flight. Since the flight was in the morning, I was asleep and was not able to download Books or other media to my phone. This is my first time flying Alaska airlines and I will admit to thinking twice before I do so again.

Our flight was delayed by six hours, our plane never left Portland the night before but the airline didn’t inform anyone till two hours before a six am flight. The plane, our plane never left the west coast! No plane no flight, simply let folks know when you know, not hours and hours later. No one apologized, no one said much of anything, we were just expected to wait quietly and await instructions.

The staff were great and the layover times were excellent no multiple hours. I just hate the Boxed Water. So you really have to purchase high price water in the airport.

Both flights were delayed. We sat on the tarmac on Boise for 3 hours with little updates

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

So so. Terrible aircraft choice for that leg of the flight.

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Flight delayed from Cape Town to Washington then got diverted to miami and in miami we had to fend for ourselves , im still trying to get to Shreveport now

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

I just wrote a text which was supposed to be for the flight from Denver to spokane not Frankfurt to Denver.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

flight delays, staff only communicating when pushed, food service lasting a grand total of 7 minutes, stuck in seat from 45mins into flight until landing

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

pleased with overall experienced, but seats in coach are tight.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Our original flight was delayed and we almost missed our layover. Fortunately they delayed the second flight as well due to the number of people being on both flights so we got lucky. But it was due to mechanical issues which was frustrating.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Buffalo to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to Seattle found on KAYAK in the last 72 hours.
21/9Sat
1 stopFrontier
16h 51mBUF-SEA
C$ 164
1/6Sat
1 stopJetBlue
10h 14mBUF-SEA
C$ 208
29/5Wed
1 stopAlaska Airlines
8h 05mBUF-SEA
C$ 237
9/6Sun
1 stopSun Country Air
22h 20mBUF-SEA
C$ 244
30/5Thu
1 stopSun Country Air
8h 30mBUF-SEA
C$ 250
13/8Tue
1 stopDelta
7h 23mBUF-SEA
C$ 300
21/9Sat
2 stopsUnited Airlines
18h 22mBUF-SEA
C$ 327
10/8Sat
1 stopDelta
8h 39mBUF-SEA
C$ 341
30/7Tue
1 stopAlaska Airlines
10h 14mBUF-SEA
C$ 382
29/5Wed
2 stopsUnited Airlines
15h 10mBUF-SEA
C$ 387

Search by stops

Search by airline

Search by price

Last minute flights from Buffalo to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Buffalo to Seattle that are departing in the next 10 days.
30/4Tue
multi-stopJetBlue
10h 12mBUF-SEA
10/5Fri
multi-stopJetBlue
11h 31mSEA-BUF
C$ 709
1/5Wed
multi-stopJetBlue
10h 13mBUF-SEA
8/5Wed
multi-stopJetBlue
7h 43mSEA-BUF
C$ 752
30/4Tue
multi-stopJetBlue
10h 12mBUF-SEA
8/5Wed
multi-stopJetBlue
7h 43mSEA-BUF
C$ 766
29/4Mon
multi-stopDelta
7h 02mBUF-SEA
6/5Mon
multi-stopDelta
21h 51mSEA-BUF
C$ 772
29/4Mon
multi-stopDelta
7h 02mBUF-SEA
8/5Wed
multi-stopDelta
22h 00mSEA-BUF
C$ 833
29/4Mon
multi-stopJetBlue
10h 09mBUF-SEA
10/5Fri
multi-stopJetBlue
11h 31mSEA-BUF
C$ 870
1/5Wed
multi-stopDelta
15h 49mBUF-SEA
6/5Mon
multi-stopDelta
21h 51mSEA-BUF
C$ 872
1/5Wed
multi-stopUnited Airlines
11h 23mBUF-SEA
9/5Thu
multi-stopUnited Airlines
8h 38mSEA-BUF
C$ 906
1/5Wed
multi-stopUnited Airlines
11h 23mBUF-SEA
9/5Thu
multi-stopUnited Airlines
8h 38mSEA-BUF
C$ 1,026
1/5Wed
multi-stopUnited Airlines
11h 23mBUF-SEA
8/5Wed
multi-stopUnited Airlines
13h 12mSEA-BUF
C$ 1,104

Search by stops

Search by airline

Search by price

Buffalo - Seattle Flights

Departure:

Buffalo (BUF)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Buffalo

Cabin classes:

Browse origins:

  • Flights » 
  • Buffalo

Browse destinations:

  • Flights » 
  • Seattle