BUF - SEA

C$ 144 Find Cheap Flights from Buffalo to Seattle

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 25/4. 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
1 adult, Economy, 0 bags

KAYAK searches 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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 425
Typical prices: C$ 509-C$ 714
JetBlue
Thu 11/6Mon 15/6
BUF - SEA • 1 stop
Cheapest one-way flights
C$ 144
Typical prices: C$ 258-C$ 501
Frontier
Sat 25/4
BUF - SEA • 2 stops
Top airlines
Cheapest • from C$ 425 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Direct flights
Not available
There are currently no direct flights between Buffalo and Seattle. You’ll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg C$ 325 (round-trip)
Shortest trip • 7h 09m (one-way)
Insights
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When to book
in advance
Our data shows that travellers who book at least 5 weeks in advance save around 44% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
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Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Seattle

Thu, 11 Jun - Mon, 15 Jun
JetBlue Logo
1:31 p.m. - 10:46 p.m.
BUF
-
SEA
12h 15m
1 stop
JetBlue Logo
11:41 p.m. - 12:31 p.m.
SEA
-
BUF
9h 50m
1 stop
C$ 425JetBlue
Fri, 12 Jun - Sun, 14 Jun
JetBlue Logo
1:31 p.m. - 10:46 p.m.
BUF
-
SEA
12h 15m
1 stop
JetBlue Logo
11:41 p.m. - 12:36 p.m.
SEA
-
BUF
9h 55m
1 stop
C$ 473JetBlue
Tue, 7 Apr - Tue, 14 Apr
Southwest Logo
6:55 p.m. - 12:10 a.m.
BUF
-
SEA
8h 15m
1 stop
Southwest Logo
11:45 p.m. - 10:20 a.m.
SEA
-
BUF
7h 35m
1 stop
C$ 487Southwest
Tue, 7 Apr - Tue, 14 Apr
Southwest Logo
6:55 p.m. - 12:10 a.m.
BUF
-
SEA
8h 15m
1 stop
Southwest Logo
7:10 p.m. - 7:50 a.m.
SEA
-
BUF
9h 40m
2 stops
C$ 494Southwest
Tue, 21 Apr - Mon, 27 Apr
Delta Logo
6:05 a.m. - 10:32 a.m.
BUF
-
SEA
7h 27m
1 stop
Delta Logo
11:15 p.m. - 11:01 a.m.
SEA
-
BUF
8h 46m
1 stop
C$ 501Delta
Thu, 9 Apr - Wed, 15 Apr
Southwest Logo
8:00 p.m. - 12:05 a.m.
BUF
-
SEA
7h 05m
1 stop
Southwest Logo
7:10 p.m. - 7:50 a.m.
SEA
-
BUF
9h 40m
2 stops
C$ 508Southwest
Mon, 6 Apr - Mon, 13 Apr
Southwest Logo
7:35 p.m. - 12:30 a.m.
BUF
-
SEA
7h 55m
1 stop
Southwest Logo
11:55 p.m. - 10:20 a.m.
SEA
-
BUF
7h 25m
1 stop
C$ 515Southwest
Thu, 23 Apr - Thu, 30 Apr
Southwest Logo
8:00 p.m. - 12:05 a.m.
BUF
-
SEA
7h 05m
1 stop
Southwest Logo
6:15 p.m. - 7:50 a.m.
SEA
-
BUF
10h 35m
2 stops
C$ 521Southwest
Wed, 13 May - Wed, 20 May
Southwest Logo
4:00 p.m. - 12:10 a.m.
BUF
-
SEA
11h 10m
2 stops
Southwest Logo
11:45 p.m. - 10:15 a.m.
SEA
-
BUF
7h 30m
1 stop
C$ 527Southwest
Tue, 7 Apr - Mon, 13 Apr
Southwest Logo
3:10 p.m. - 11:35 p.m.
BUF
-
SEA
11h 25m
2 stops
Southwest Logo
6:15 p.m. - 7:50 a.m.
SEA
-
BUF
10h 35m
2 stops
C$ 528Southwest
Booking Insights

KAYAK's insights & trends for Buffalo to Seattle flights

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.

How much is a round-trip flight from Buffalo to Seattle?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Buffalo to Seattle departing in June.

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 round-trip 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 October, where tickets cost C$ 447 (return) on average. On the other hand, the most expensive months are November and April, where the average cost of round-trip tickets is C$ 807 and C$ 682 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip 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 week.

To get a below average price on the flight from Buffalo to Seattle, you should book around 5 weeks before departure, which saves you about 44% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flightC$ 144
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly (3% 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$ 144 for a one-way ticket and C$ 425 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?

    SkyTeam is the only airline alliance operating flights between Buffalo and Seattle.

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

    The two airlines most popular with KAYAK users for flights from Buffalo to Seattle are Southwest and Delta. With an average price for the route of C$ 579 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of C$ 522 and an overall rating of 7.9.

  • 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.

KAYAK’s 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.

Reviews of the top airlines flying 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
SouthwestOverall score based on 4319 reviews
8.0Comfort
8.1Boarding
7.5Entertainment
8.6Crew
7.0Food
Airline reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

4.0 OkayKenny, Mar 2026
TPA - BWI
Read more Southwest reviews

Long layover between flights to Long Island from BWI - need better coordination between flights

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

I realize they are still working out kinks with the new boarding process, but by the time I boarded in group 5, most of the bins were full. All airlines should better enforce small bags and jackets going under the seats until everyone has boarded.

WiFi was not working and didn’t have a beverage service

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Delayed. Hot. Passenger next to me was so large I couldn’t move.

The flight went very well, but the flight attendants didn't serve and food or drinks other than 1st class due to rough air but to be honest it wasn't that bumpy and I felt that they could've at least offered water and coffee perhaps. Also serving 1st class only is a bad look. I've been in 1st class many times and I would've felt that if the turbulence was too rough for the main cabin, it would be too rough for 1st class too.

There was an unruly family behind us that made the short flight miserable!!! The cabin crew did nothing to contain it.

My seatback screen didn’t work so that sucked because that’s what I was going to do on the plane.

The whole experience was excellent. As it most often is with Delta

There’s not much to say about a one hour flight. This is a connection from LA to RNO that I missed the previous night due to a mechanical check delay on my originating flight from JFK to LAX. The short flight itself was fine. Instructions from the pilot and crew were per usual. The coffee was barely lukewarm, which possibly was purposeful so we would down it quickly. Bags were already on carousel upon reaching baggage claim, which was excellent.

Everything was good except wifi and a leaking drink chiller. The floor was all wet and my bag was soaked. Did not notice until debarking. Have not heard back from Delta. Even though this was leg one of an international flight in first class, they denied access to their Sky Club - very disappointing!

Boarding and crew were fantastic, but I paid for a window seat with no window. Seat 11D on a CRJ-900 apparently does not have a window. Lesson learned.

Delta flights recently are always delayed AND at jfk tney get the gates further away (need To walk 20’ to get to them/all the way at the end of the terminal). Not sure whats happening but price doesnt match experience!

Everything you need to know for your flight from Buffalo to Seattle

Information on your arrival and departure airports