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BUF - SEA

Find cheap flights from Buffalo to Seattle from C$ 196

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 17/5. 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
Sat 8/6
Sat 15/6

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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 43,968,530 times on KAYAK, and here is why:

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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
7:25 p.m. - 11:36 p.m.BUF-SEA
7h 11m1 stop
6:30 a.m. - 6:18 p.m.SEA-BUF
8h 48m1 stop
C$ 350Delta
Find Deal
Mon, 9 Sep - Wed, 25 Sep
4:35 p.m. - 11:56 p.m.BUF-SEA
10h 21m1 stop
6:30 a.m. - 6:18 p.m.SEA-BUF
8h 48m1 stop
C$ 352Delta
Find Deal
Sat, 21 Sep - Tue, 24 Sep
3:25 p.m. - 10:09 p.m.BUF-SEA
9h 44m1 stop
9:53 a.m. - 10:20 p.m.SEA-BUF
9h 27m1 stop
C$ 365Delta
Find Deal
Wed, 21 Aug - Sun, 1 Sep
10:45 a.m. - 7:30 p.m.BUF-SEA
11h 45m1 stop
11:59 p.m. - 10:42 a.m.SEA-BUF
7h 43m1 stop
C$ 425JetBlue
Find Deal
Sun, 26 May - Wed, 29 May
6:46 p.m. - 9:28 a.m.BUF-SEA
17h 42m1 stop
10:08 p.m. - 4:20 p.m.SEA-BUF
15h 12m1 stop
C$ 563Frontier
Find Deal
Fri, 5 Jul - Sun, 7 Jul
7:48 p.m. - 7:57 a.m.BUF-SEA
15h 09m2 stops
12:50 p.m. - 11:32 p.m.SEA-BUF
7h 42m1 stop
C$ 683United Airlines
Find Deal
Mon, 9 Sep - Wed, 25 Sep
10:25 a.m. - 3:22 p.m.BUF-SEA
7h 57m1 stop
12:25 a.m. - 4:45 p.m.SEA-BUF
13h 20m1 stop
C$ 772United Airlines
Find Deal
Wed, 29 May - Thu, 6 Jun
7:00 a.m. - 2:59 p.m.BUF-SEA
10h 59m1 stop
12:30 a.m. - 11:07 a.m.SEA-BUF
7h 37m1 stop
C$ 822American Airlines
Find Deal
Fri, 5 Jul - Sat, 6 Jul
4:36 p.m. - 11:59 p.m.BUF-SEA
10h 23m2 stops
6:00 a.m. - 9:20 p.m.SEA-BUF
12h 20m2 stops
C$ 959Alaska Airlines
Find Deal
Tue, 2 Jul - Fri, 5 Jul
4:36 p.m. - 11:59 p.m.BUF-SEA
10h 23m1 stop
7:59 p.m. - 11:16 a.m.SEA-BUF
12h 17m2 stops
C$ 1,055Alaska Airlines
Find Deal
Sun, 30 Jun - Mon, 1 Jul

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, Saturday 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 January, where tickets cost C$ 412 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is C$ 862 and C$ 849 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 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 83 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$ 196. KAYAK users also found Buffalo to Seattle round-trip flights on Delta from C$ 350 and on JetBlue from C$ 425.

Good to know

Low season

February

High season

August

Cheapest flight

C$ 196
Best time to beat the crowds (29% less expensive on average)
Most popular time to fly (10% 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$ 143 for a one-way ticket and C$ 255 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?

    Star Alliance, oneworld, and SkyTeam 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, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to Seattle are Delta and Alaska Airlines. With an average price for the route of C$ 473 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of C$ 659 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 9141 reviews
8.6Crew
8.2Boarding
7.9Comfort
7.3Entertainment
7.3Food
Airline reviews

Ashley - the flight attendant from OMA to SEA - was phenomenal. I was traveling alone with my 4 month old and she made every accommodation possible and went out of her way to make sure my experience was as comfortable as possible. Give this woman a massive raise!

10.0 ExcellentAdam, May 2024OMA - SEA
Read more about Alaska Airlines reviews

Ashley - the flight attendant from OMA to SEA - was phenomenal. I was traveling alone with my 4 month old and she made every accommodation possible and went out of her way to make sure my experience was as comfortable as possible. Give this woman a massive raise!

boarding was easy and the 737 Max was comfortable and roomy but that was the only good.. there was a child screaming at the top of his lungs for the entire loading, taxiing and part of the flight and no one in the crew said anything or offered any assistance.

The flight was great. The pilot was great. It was really annoying that the staff had facemasks on. Hard to hear what they’re saying when a mask is covering their mouth. I enjoyed the flight, but there was a crying baby in front of me. You guys should offer flights baby free. I would be very into that me and the person next to me discussed how they should make free flights for all of us that don’t have kids. I wouldn’t mind paying extra to not have to deal with the smell of a dirty diaper or screaming of a child. Also, if they had a separate room, the babies could be sent to the back with a curtain or something muddle the horrible sounds.

Smooth. Courteous. Fun. One problem: the wheels on my checked roller back were broken when I picked up baggage at destination. Must have happened during flight baggage handling but I don’t know where.

Staff very helpful and friendly, in flight entertainment poor. Flight left late and thus arrived 20 minutes late to final destination.

First time flying with Alaska and the staff were All professional from checkin to departure! I do plan to book more flights with Alaska. Thanks

Boarded the plain and had to wait 1 hour for crew Captain to arrive from another flight

Overall good flight, smooth and on time and comfortable. Disappointing that food is not served and you can't purchase the snack packs on the plane.

There was a row with three women who were very loud - talking and laughing. In an open, outdoor setting that's fine. On an airplane, no. The flight attendants told the women they were the fun row. It took the woman sitting in the row ahead of the loud women to tell them they were too loud, but everyone in the general vicinity was irritated. I didn't think it would be possible to be so rowdy for so long. Then when we landed we weren't let off at a gate. We had to be bussed in and the bus contended with airline traffic. After dealing with the loud passengers, this was not what I was expecting. An incredibly disappointing experience with an airline that I have always regarded as one of the better ones.

They oversold my flight by 9 seats so when I went to check in I was not assigned a seat and the only one available if I didn’t want to chance it were 100 dollars more

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.

Surprisingly easy! I was hesitant to try this, but the cost swayed me. I actually felt like I had less stress than all the taxiing and possible delays that occur with short regional flights where you spend less time in the air than getting to and from the plane..

This flight was delayed multiple times and eventually canceled around 2-3ish. Original take off time was around 10:30am. By 3, there were no other options out of Houston, so stuck in Houston for from 3pm - 11am the next day.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

WiFi connected but only let you go to the AA website, not even text messaging worked.

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.

I checked a bag because it was $5 less than carry on. They managed to lose my bag on a 2.5 hr direct flight! Frontier has no airport staff at baggage claim to help. As soon as I got home around 11 pm I tried to use their online system to file the claim for lost bag - system wouldn't take the # on my baggage claim ticket - said it was not the correct number. Also said that I had not checked a bag, which wasn't true - even my online boarding pass showed that I had checked a bag. Wasted about an hour on that process with no luck. Tried again in the morning - same thing. So tried online chat with Frontier bot - waited 35-40" twice to be connected to a baggage agent and it never happened. Eventually drove to PDX after work and waited 2 hrs for the Frontier ticket agents to arrive prior to the next Frontier flight out of PDX and FINALLY got some help from one of them, to take me to lost luggage area where I was able to retrive my bag. Probably took 4-5 hrs. of my time and endless frustration to get my bag. This was my first -- and LAST -- experience flying Frontier Airlines. Check-in was also extremely difficult and time consuming. The flight itself (and staff) were fine but everything else about the experience was a total disaster! The fact that Frontier literally has NO WAY to connect to a human voice for customer service (in this case for lost luggage) is the WORST!!!!!

Frontier is a crappy airline nothing about it is honest

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

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.

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.
17/5Fri
1 stopFrontier
17h 15mBUF-SEA
C$ 196
12/7Fri
1 stopSun Country Air
21h 46mBUF-SEA
C$ 210
6/7Sat
1 stopFrontier
16h 51mBUF-SEA
C$ 238
8/6Sat
1 stopUnited Airlines
8h 00mBUF-SEA
C$ 245
14/5Tue
1 stopJetBlue
11h 45mBUF-SEA
C$ 326
29/5Wed
2 stopsUnited Airlines
15h 45mBUF-SEA
C$ 396
9/7Tue
1 stopAlaska Airlines
9h 51mBUF-SEA
C$ 438
22/5Wed
2 stopsUnited Airlines
19h 02mBUF-SEA
C$ 451
17/5Fri
2 stopsDelta
30h 46mBUF-SEA
C$ 464
6/7Sat
2 stopsDelta
28h 40mBUF-SEA
C$ 485

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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.
14/5Tue
multi-stopJetBlue
10h 24mBUF-SEA
29/5Wed
multi-stopJetBlue
7h 43mSEA-BUF
C$ 693
14/5Tue
multi-stopUnited Airlines
14h 08mBUF-SEA
29/5Wed
multi-stopUnited Airlines
6h 45mSEA-BUF
C$ 842
14/5Tue
multi-stopDelta
7h 13mBUF-SEA
18/5Sat
multi-stopDelta
7h 47mSEA-BUF
C$ 900
11/5Sat
multi-stopJetBlue
11h 59mBUF-SEA
14/5Tue
multi-stopJetBlue
11h 40mSEA-BUF
C$ 974
11/5Sat
multi-stopUnited Airlines
7h 33mBUF-SEA
14/5Tue
multi-stopUnited Airlines
13h 12mSEA-BUF
C$ 1,162
11/5Sat
multi-stopUnited Airlines
14h 53mBUF-SEA
14/5Tue
multi-stopUnited Airlines
11h 23mSEA-BUF
C$ 1,179

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Buffalo - Seattle Flights

Departure:

Buffalo (undefined)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Buffalo

Cabin classes:

Browse origins:

  • Flights » 
  • Buffalo

Browse destinations:

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  • Seattle