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BUF - SEA

Find cheap flights from Buffalo to Seattle from $96

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 5/15. 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
Mon 6/3
Mon 6/10

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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 43,369,418 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
7:02 pm - 7:04 amBUF-SEA
15h 02m1 stop
8:04 am - 4:25 pmSEA-BUF
29h 21m1 stop
$236Frontier
Find Deal
Sat, May 25 - Sun, Jun 2
4:36 pm - 9:57 pmBUF-SEA
8h 21m1 stop
5:53 am - 5:56 pmSEA-BUF
9h 03m1 stop
$254American Airlines
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Thu, Jun 6 - Wed, Jun 12
4:35 pm - 10:18 pmBUF-SEA
8h 43m1 stop
11:15 pm - 8:51 amSEA-BUF
6h 36m1 stop
$256Delta
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Sat, Sep 21 - Tue, Sep 24
5:55 pm - 10:14 pmBUF-SEA
7h 19m1 stop
6:30 am - 6:18 pmSEA-BUF
8h 48m1 stop
$302Delta
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Thu, Sep 5 - Sat, Sep 14
3:35 pm - 10:49 pmBUF-SEA
10h 14m1 stop
11:59 pm - 10:42 amSEA-BUF
7h 43m1 stop
$305JetBlue
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Thu, May 30 - Fri, May 31
3:36 pm - 10:49 pmBUF-SEA
10h 13m1 stop
11:59 pm - 10:42 amSEA-BUF
7h 43m1 stop
$343JetBlue
Find Deal
Wed, May 29 - Mon, Jun 3
6:09 am - 12:54 pmBUF-SEA
9h 45m1 stop
11:29 pm - 9:41 amSEA-BUF
7h 12m1 stop
$404United Airlines
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Wed, May 29 - Wed, May 29
10:25 am - 3:22 pmBUF-SEA
7h 57m1 stop
11:29 pm - 9:41 amSEA-BUF
7h 12m1 stop
$439United Airlines
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Tue, May 28 - Tue, May 28
1:39 pm - 8:42 pmBUF-SEA
10h 03m1 stop
6:00 am - 9:57 pmSEA-BUF
12h 57m2 stops
$533Alaska Airlines
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Wed, Aug 28 - Tue, Sep 3
5:08 pm - 11:59 pmBUF-SEA
9h 51m1 stop
6:07 am - 4:14 pmSEA-BUF
7h 07m1 stop
$560Alaska Airlines
Find Deal
Tue, Jul 16 - Fri, Jul 26

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 Tuesday and more expensive on a Sunday. On your return trip to Buffalo, you should consider flying back on a Wednesday, and avoid Sundays 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 $627 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 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 72 hours, the cheapest one-way ticket from Buffalo to Seattle found on KAYAK was with Frontier for $96. Frontier proposed a round-trip connection from $236 and American Airlines from $254.

Good to know

Low season

February

High season

August

Cheapest flight

$96
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 10% 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 $96 for a one-way ticket and $236 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?

    oneworld, Star Alliance, and SkyTeam 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 $459 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 $599 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

Top tips for finding a cheap flight from BUF 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 9137 reviews
7.3Food
8.2Boarding
7.3Entertainment
8.6Crew
7.9Comfort
Airline reviews

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

4.0 OkayRandy, May 2024SFO - SEA
Read more about Alaska Airlines reviews

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

Was not happy that we had to wait an additional 50 minutes for passengers that were still in TSA. This delay made us miss our connecting flight in Seattle to get home to tuck in our two little toddlers. We ran off the plane and ran across the entire airport trying to make this flight only to get to the gate to see that they have ended boarding. So they were willing to wait for passengers in Hawaii but not Seattle?? Especially when this wasn't even our fault. I expect to receive miles for missing our flight and spending an additional 4 hours in Seattle.

Better organizing of entry and exit onto the plane regarding all of the baggage people haul on. There should be a better system so those with no baggage can get in and out more quickly. The baggage haul-on situation is absurd.

It was a great experience, although our seat was taken and we did not want to be rude and ask the person to move. Flight Attendants need to make sure that people should be in their assign sitting that are paid for. Other then that, we had a great flying experience with Alaska Airlines.

Too many people with oversized carry-ons. Uncomfortable seats. flight was too crowded.

Assigned last seat in row Did not recline at all Alaska Air seemed to have more leg room than my last few flights on United Yay!

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.

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.

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 took an hour to get my bag after landing. Not exaggerating

Boarding process on JetBlue is an absolute disgrace. I can’t believe they can’t figure out a better way to board everyone. They called people with disabilities, mosaic and group A all at once and it was a disaster

We flew halfway to our destination (NYC to Burlington) and turned around due to a mechanical issue (landing gear wouldn’t retract automatically). We turned back to JFK for JetBlue’s benefit as we landed safely at JFK and could've just as easily landed safely in Burlington on our Christmas Day flight. Instead the company directed the crew to return the plane to more easily service the aircraft. The passengers landed 3 1/2 hours later and JetBlue gave each passenger $50 for the trouble. Hardly fair compensation to be separated from family on Christmas Day.

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

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

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.
5/15Wed
1 stopFrontier
13h 47mBUF-SEA
$96
5/17Fri
1 stopFrontier
17h 15mBUF-SEA
$120
5/29Wed
1 stopFrontier
12h 34mBUF-SEA
$151
5/28Tue
1 stopAmerican Airlines
8h 15mBUF-SEA
$188
7/9Tue
1 stopAmerican Airlines
7h 50mBUF-SEA
$228
5/28Tue
1 stopJetBlue
10h 14mBUF-SEA
$231
9/1Sun
1 stopUnited Airlines
7h 59mBUF-SEA
$244
5/14Tue
1 stopJetBlue
11h 45mBUF-SEA
$281
6/7Fri
2 stopsUnited Airlines
15h 10mBUF-SEA
$337
6/14Fri
2 stopsAlaska Airlines
10h 23mBUF-SEA
$374

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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.
5/8Wed
multi-stopFrontier
26h 31mBUF-SEA
5/16Thu
multi-stopFrontier
17h 18mSEA-BUF
$340
5/9Thu
multi-stopDelta
9h 03mBUF-SEA
5/15Wed
multi-stopDelta
8h 59mSEA-BUF
$655
5/5Sun
multi-stopJetBlue
11h 44mBUF-SEA
5/11Sat
multi-stopJetBlue
9h 09mSEA-BUF
$680
5/9Thu
multi-stopJetBlue
11h 45mBUF-SEA
5/16Thu
multi-stopJetBlue
10h 30mSEA-BUF
$713
5/9Thu
multi-stopUnited Airlines
8h 48mBUF-SEA
5/15Wed
multi-stopUnited Airlines
11h 23mSEA-BUF
$765
5/9Thu
multi-stopUnited Airlines
19h 02mBUF-SEA
5/15Wed
multi-stopUnited Airlines
11h 23mSEA-BUF
$774
5/5Sun
multi-stopJetBlue
11h 44mBUF-SEA
5/10Fri
multi-stopJetBlue
11h 27mSEA-BUF
$778
5/9Thu
multi-stopUnited Airlines
8h 48mBUF-SEA
5/16Thu
multi-stopUnited Airlines
11h 23mSEA-BUF
$815
5/8Wed
multi-stopUnited Airlines
19h 00mBUF-SEA
5/16Thu
multi-stopUnited Airlines
8h 38mSEA-BUF
$816
5/9Thu
multi-stopUnited Airlines
17h 27mBUF-SEA
5/16Thu
multi-stopUnited Airlines
11h 23mSEA-BUF
$827

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Buffalo - Seattle Flights

Departure:

Buffalo (BUF)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Buffalo

Cabin classes: