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BUF - SEA

$128 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 8/20. 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
Wed 7/10
Wed 7/17

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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 travelers have searched 42,898,604 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
1:49 pm - 7:33 pmBUF-SEA
8h 44m1 stop
10:54 pm - 11:57 amSEA-BUF
10h 03m1 stop
$255American Airlines
Find Deal
Thu, Sep 26 - Mon, Oct 7
3:25 pm - 10:18 pmBUF-SEA
9h 53m1 stop
11:15 pm - 11:15 amSEA-BUF
9h 00m1 stop
$256Delta
Find Deal
Thu, Oct 24 - Tue, Oct 29
5:40 pm - 10:57 pmBUF-SEA
8h 17m1 stop
11:45 pm - 11:57 amSEA-BUF
9h 12m2 stops
$261American Airlines
Find Deal
Thu, Oct 24 - Tue, Oct 29
6:46 pm - 8:37 amBUF-SEA
16h 51m1 stop
9:37 am - 4:20 pmSEA-BUF
27h 43m1 stop
$286Frontier
Find Deal
Sat, Sep 14 - Sun, Sep 22
4:00 pm - 10:49 pmBUF-SEA
9h 49m1 stop
11:59 pm - 10:31 amSEA-BUF
7h 32m1 stop
$304JetBlue
Find Deal
Thu, Oct 24 - Mon, Oct 28
10:20 am - 2:12 pmBUF-SEA
6h 52m1 stop
10:55 pm - 6:55 pmSEA-BUF
17h 00m1 stop
$346Delta
Find Deal
Thu, Nov 21 - Mon, Dec 2
5:15 am - 10:09 amBUF-SEA
7h 54m1 stop
6:00 am - 10:01 pmSEA-BUF
13h 01m2 stops
$361Alaska Airlines
Find Deal
Wed, Aug 21 - Sun, Sep 1
5:36 am - 4:49 pmBUF-SEA
14h 13m2 stops
6:00 am - 10:01 pmSEA-BUF
13h 01m2 stops
$366Alaska Airlines
Find Deal
Wed, Aug 21 - Sun, Sep 1
6:00 am - 4:10 pmBUF-SEA
13h 10m2 stops
6:31 am - 11:25 pmSEA-BUF
13h 54m2 stops
$406United Airlines
Find Deal
Thu, Oct 24 - Tue, Oct 29
10:57 am - 6:39 pmBUF-SEA
10h 42m2 stops
10:55 am - 8:50 pmSEA-BUF
6h 55m1 stop
$451United Airlines
Find Deal
Wed, Aug 21 - Wed, Aug 28

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.
Your flight ticket price will generally be cheaper if you fly to Seattle on a Wednesday and more expensive on a Sunday. On your return trip to Buffalo, you should consider flying back on a Wednesday, and avoid Saturdays for better deals.

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 $300 on average. On the other hand, the most expensive months are July and December, where the average cost of tickets is $623 and $618 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 60 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 72 hours, the cheapest one-way ticket from Buffalo to Seattle found on KAYAK was with Delta for $128. American Airlines proposed a round-trip connection from $255 and Delta from $256.

Good to know

Low season

February

High season

August

Cheapest flight

$128
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly with an average 11% increase in price.
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 $128 for a one-way ticket and $255 for a round-trip.

  • Do I need a passport to fly between Buffalo and Seattle?

    No, a passport isn't needed to fly from Buffalo to Seattle. However, local authorities might ask for an official ID.

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

  • What is the most popular layover when flying to Seattle from Buffalo?

    Chicago is the most popular layover city among KAYAK users traveling from Buffalo to Seattle.

  • 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 $441 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 $634 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. Booking your flights between Buffalo and SEA can sometimes prove cheaper using this method.

  • 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

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.
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 9254 reviews
7.9Comfort
7.3Entertainment
8.6Crew
7.3Food
8.2Boarding
Airline reviews

Barbara at JFK terminal for Alaska was very helpful in retrieving our boarding passes for our connecting and quite pleasant!! Thanks

10.0 ExcellentAnonymous, Jun 2024JFK - SEA
Read more about Alaska Airlines reviews

Barbara at JFK terminal for Alaska was very helpful in retrieving our boarding passes for our connecting and quite pleasant!! Thanks

It was okay. Gate crew could be better organized. Wheelchair service for my mother was late as we deplaned. Flight crew was alright. I’ve seen better and worse.

Great! Wish we had more Alaska flight options in MSP

I was happy with my whole experience, and it was a smooth flight. Thank you

The people who worked for Alaska Airlines, both on the ground at O'Hare and during the flight, made it remarkable for me. Their customer service is incredible; they're kind of like the Nordstrom of the sky.

Thw crew was excellent but due to poor scheduling Alaska Airlines routed our flight to LAX then LAX to Seattle. This delayed our arrival at the airport by at least 5 hrs and really inconvenienced us in many ways...

We loved the extra legroom on the flight and the fact that we didn’t have any one beside us.Everything was a n time and satisfactory.

I booked flight for my son. He had an epilepsy episode while in line boarding the plane. No refund. WTF? Never again book with Kayak.

The queue before check-in was long and slow moving due to too few desks being open. THEN, WHEN WE FINALLY REACHED THE CHECK-IN DESK WE WERE CHARGED US$70 FOR 2 BAGS. What rubbed salt into the wound was the incredible number of large bags in people’s “carry on”.

I was unfortunately placed in the middle seat. Very, Very cramped.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

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.

The flight was excellent. The crew was welcoming and attentive.

Run out of snack choices. Why are the seats not padded for your butt? Are we sitting on blocks of wood or metal for $250-300 a pop? This ain’t spirit. Let’s get it together people

Going through JFK’s security is a mess. The TSA security said no shoes on the bins. So, we place our shoes in the belt and they came out all over the belt. Boarding was delayed and Flight as well.

There were multiple delays but JetBlue tried to make the boarding and departure process as quick and efficient as possible. The crew was as detached from reality as could be, meaning: not very friendly and just doing things by the numbers.

40 minute delay before take off after boarding flight. Bright lights throughout night flight due Issues with light panels. In flight Entertainment nonfunctional

Another horrible Jet Blue experience. This airline has suffered the biggest decline of all from best to worst. TVs didn’t work (again). internet was temperamental. Boarded late and couldn’t get organized to serve snacks.

I hate their constant delays! It’s as if I cannot confidently make plans for timing when I'm traveling with them. I slept through it, so all I can say is it was good.

There was no wheelchair or wheelchair escort at the gate..unacceptable

No WiFi No TV Bag of chips I guess it could be worse.

From bag drop to boarding, it was great. In-flight is a little different. The seats were a little uncomfortable for that long of a flight. The rest of the cabin crew except for Eva was wonderful. Eva was not friendly at all. I've had to personally encounter her twice in-flight. First time was when I had to go to the lavatory in the back of the plane, and since it was the first for me to board such tiny plane, I didn't know we were using the crew toilet. She was giving me an attitude while telling me where and how to open it since it's not the regular push to open type of door. The second one was when I had to throw trash then use the lavatory again. I asked where to throw them, and unfortunately she was the only crew in the back doodling on her phone, she had to point it out to me with an attitude then told me to wait on the carpet, which I understand because I didn't realize that, but she could have been nicer. After all, I'm a paying customer, and assisting a passenger who isn't knowledgeable about the aircraft is one of the things she's there for. The rest of the experience and crew from bag drop to in-flight were excellent except for her.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

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.

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.
8/20Tue
1 stopDelta
11h 13mBUF-SEA
$128
8/20Tue
2 stopsUnited Airlines
10h 23mBUF-SEA
$183
7/16Tue
1 stopAlaska Airlines
9h 51mBUF-SEA
$218
7/8Mon
1 stopSun Country Air
23h 59mBUF-SEA
$233
7/20Sat
1 stopFrontier
9h 52mBUF-SEA
$237
7/8Mon
2 stops
21h 46mBUF-SEA
$250
10/24Thu
2 stopsUnited Airlines
17h 15mBUF-SEA
$258
11/18Mon
1 stopAmerican Airlines
9h 04mBUF-SEA
$268
10/9Wed
1 stopAmerican Airlines
18h 53mBUF-SEA
$531
10/11Fri
1 stopDelta
7h 06mBUF-SEA
$589

Search by stops

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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.
6/14Fri
multi-stopFrontier
30h 21mBUF-SEA
6/21Fri
multi-stopFrontier
27h 27mSEA-BUF
$372
6/12Wed
multi-stop
18h 34mBUF-SEA
6/15Sat
multi-stop
15h 54mSEA-BUF
$427
6/15Sat
multi-stopDelta
7h 10mBUF-SEA
6/18Tue
multi-stopDelta
9h 16mSEA-BUF
$655
6/15Sat
multi-stopAmerican Airlines
10h 40mBUF-SEA
6/18Tue
multi-stopAmerican Airlines
9h 03mSEA-BUF
$660
6/15Sat
multi-stopAmerican Airlines
10h 40mBUF-SEA
6/18Tue
multi-stopAmerican Airlines
8h 52mSEA-BUF
$665
6/14Fri
multi-stopAmerican Airlines
8h 31mBUF-SEA
6/21Fri
multi-stopAmerican Airlines
10h 06mSEA-BUF
$707
6/12Wed
multi-stopAmerican Airlines
10h 34mBUF-SEA
6/15Sat
multi-stopAmerican Airlines
8h 43mSEA-BUF
$751
6/14Fri
multi-stopAmerican Airlines
10h 15mBUF-SEA
6/21Fri
multi-stopAmerican Airlines
10h 06mSEA-BUF
$908
6/14Fri
multi-stopUnited Airlines
7h 32mBUF-SEA
6/20Thu
multi-stopUnited Airlines
9h 56mSEA-BUF
$942
6/12Wed
multi-stopUnited Airlines
10h 12mBUF-SEA
6/15Sat
multi-stopUnited Airlines
12h 06mSEA-BUF
$1,571

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Buffalo - Seattle Flights

Departure:

Buffalo (BUF)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Buffalo

Cabin classes: