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SEA - BUF

Find cheap flights from Seattle to Buffalo from $119

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Buffalo departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sun 6/2
Sun 6/9

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Buffalo.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Buffalo.
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Buffalo 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
9:49 pm - 6:07 pmSEA-BUF
17h 18m1 stop
10:56 pm - 8:49 pmBUF-SEA
24h 53m1 stop
$237Frontier
Find Deal
Thu, May 23 - Wed, May 29
8:14 pm - 9:56 pmSEA-BUF
22h 42m1 stop
7:02 pm - 7:04 amBUF-SEA
15h 02m1 stop
$246Frontier
Find Deal
Tue, May 28 - Sat, Jun 1
5:53 am - 5:56 pmSEA-BUF
9h 03m1 stop
4:36 pm - 9:57 pmBUF-SEA
8h 21m1 stop
$254American Airlines
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Tue, Jun 11 - Tue, Jun 18
10:52 pm - 11:59 amSEA-BUF
10h 07m2 stops
6:04 am - 12:34 pmBUF-SEA
9h 30m1 stop
$259American Airlines
Find Deal
Tue, Jul 23 - Tue, Aug 6
12:11 pm - 10:52 pmSEA-BUF
7h 41m1 stop
4:57 pm - 10:00 pmBUF-SEA
8h 03m1 stop
$456Alaska Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 6
6:00 am - 10:52 pmSEA-BUF
13h 52m2 stops
4:57 pm - 10:00 pmBUF-SEA
8h 03m1 stop
$467Alaska Airlines
Find Deal
Thu, Oct 3 - Sun, Oct 6
6:00 am - 5:09 pmSEA-BUF
8h 09m1 stop
5:29 am - 7:30 pmBUF-SEA
17h 01m1 stop
$471Delta
Find Deal
Mon, Jul 22 - Tue, Jul 23
6:00 am - 4:59 pmSEA-BUF
7h 59m1 stop
12:14 pm - 6:03 pmBUF-SEA
8h 49m1 stop
$483Delta
Find Deal
Sat, Jun 8 - Tue, Jun 11
12:30 pm - 11:59 pmSEA-BUF
8h 29m1 stop
2:04 pm - 7:57 amBUF-SEA
20h 53m2 stops
$505United Airlines
Find Deal
Wed, May 29 - Sat, Jun 1
10:25 pm - 9:41 amSEA-BUF
8h 16m1 stop
3:00 pm - 8:02 amBUF-SEA
20h 02m2 stops
$506United Airlines
Find Deal
Thu, May 30 - Mon, Jun 3

Flights from Seattle to Buffalo - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Buffalo 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 Seattle to Buffalo?

The average price of all flights from Seattle to Buffalo clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Seattle to Buffalo, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Buffalo, Tuesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Buffalo, 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 Seattle to Buffalo is January, where tickets cost $375 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $656 and $598 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Buffalo, 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 Seattle to Buffalo, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 51 days before departure.

Which airlines provide the cheapest flights from Seattle to Buffalo?

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 Seattle to Buffalo found on KAYAK was with Frontier for $119. Frontier proposed a round-trip connection from $237 and American Airlines from $254.

Good to know

Low season

February

High season

August

Cheapest flight

$119
Best time to beat the crowds with an average 24% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Seattle to Buffalo

When to book flights from Seattle to Buffalo

Are your dates flexible? Find out the best times to travel from Seattle to Buffalo 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 Seattle to Buffalo

  • How can I easily go from Buffalo Niagara International Airport (BUF) to downtown Buffalo?

    If you choose to drive from Buffalo Niagara International Airport (BUF) to downtown Buffalo, you can plan on the journey taking between 15 and 20 minutes. Otherwise, you can take public transport, like bus line 24. The bus will bring you to the city center in 45 to 50 minutes.

  • Will I be able to check a bag for free on my flight from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF)?

    If you are flying Economy from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF), most airlines will not allow you to check a bag for free. If you choose to pay for a checked bag, airlines like American and Frontier will likely have a weight limit of 50 pounds.

  • What airline lounges are available at Seattle-Tacoma International Airport (SEA)?

    Passengers can choose from a few different airline lounges in Seattle-Tacoma International Airport (SEA). Concourse A has the Club SEA, the United Club, and the Delta Sky Club, while Concourses C and D have the Alaska Lounge. You can also find the Alaska Lounge in the North Satellite Terminal.

  • What environmentally friendly airlines service flights from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF)?

    JetBlue has taken many actions to be more environmentally friendly. For example, the airline has made a goal to have net zero carbon emissions by the year 2040. It has also started integrating sustainable aviation fuel into the fuel that it uses for its fleet. In addition, the company has an awareness program to teach tourists about the importance of keeping the oceans clean.

  • What is the cheapest flight from Seattle to Buffalo?

    In the last 3 days, the lowest price for a flight from Seattle to Buffalo was $119 for a one-way ticket and $237 for a round-trip.

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

    No

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

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

  • Which airline alliances offer flights from Seattle to Buffalo?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Buffalo are Delta and Alaska Airlines. With an average price for the route of $497 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 $717 and an overall rating of 8.0.

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

    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 Seattle to Buffalo.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Buffalo from Seattle 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 Seattle to Buffalo?

    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 Buffalo with an airline and back to Seattle with another airline. Booking your flights between Seattle and BUF 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 Seattle to Buffalo?

    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 Buffalo from Seattle 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 SEA to Buffalo

  • Travelers have a few different options for how they can go from downtown Seattle to Seattle-Tacoma International Airport (SEA). If you opt to drive, the trip will take you on average 20 to 25 minutes. If you choose to take public transportation, like the 1-Line tram instead, you will arrive at the airport in around 45 to 50 minutes.
  • Flights from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF) will typically require you to have a layover during your journey. If you are flying with JetBlue, you will likely have a layover in Los Angeles. When flying with Frontier, you may have a stop in Denver.
  • One way to save money on your flight from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF) is by opting for Basic Economy. JetBlue has a Blue Basic cabin class for this route, while American Airlines has Basic Economy.
  • Not all airlines allow passengers to bring a free carry-on suitcase when flying from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF) with Economy. While Frontier Airlines requires you to pay to bring a carry-on suitcase, American Airlines allows you to bring one for free.
  • As flights from Seattle-Tacoma International Airport (SEA) to Buffalo Niagara International Airport (BUF) are rather a long journey, you may want to upgrade to a different cabin class to maximize your comfort. Options like Premium Economy and Business are available for this route.
See more tips

Top 5 airlines serving from Seattle to Buffalo

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Buffalo. 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 Seattle to Buffalo? 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 9128 reviews
8.2Boarding
7.3Food
7.9Comfort
7.3Entertainment
8.6Crew
Airline reviews

No entertainment, food was cookies & juice,water, soda or coffee.

10.0 ExcellentAnonymous, May 2024SEA - RDM
Read more about Alaska Airlines reviews

No entertainment, food was cookies & juice,water, soda or coffee.

My baggage was in another flight, anit was delayed for one hour.

The maintenance delay was seemingly handled very poorly... Little to no information was provided to the passengers sitting on board for an extended period of time. On a brighter note, at least the cabin crew (flight attendants) did the best they could. They seemingly were provided very little information with regards to the delay. Unless absolutely beyond my control, I can’t imagine buying a ticket on Alaska airlines again, based on this and a previous experience my wife recently had, along with complaints overheard from other passengers.

The only issue was in the wheelchair waiting area before we got on the plane. They seemed very disorganized. Everyone we encountered after that was great! We loved Cassandra at check-in. She was awesome. The flight attendants were wonderful too! The lady helping with the waiting wheelchair when we got off the plane was awesome too!

Expect to get miles for us having to miss our first planned flight due to them waiting on passengers that decided to be late to the airport.

Up on arrival, due to twisted ankle, I wasn’t able to walk. Requested for a wheelchair. They immediately asked for it. After 10 minutes wait a young man named Carlos picked me up at the gate, got my baggage and took me to the pick up area. It was a great service. Thanks Alaska Air line

Once I was in my seat, it wasn't as comfortable. It was very tight (width wise).

Just a little delay in our takeoff but all was well and pleasant.

Command crew was excellent in handling dangerous flying conditions (weather).

I usually choose Alaska Airlines over any other airline. They try the hardest to make flying a great experience.

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

We flew early evening on New Year's Eve. Our plane was less than half full... Great for the passenger experience -- not so much for the airline lol. Comfortable, spacious, smooth flight -- and early arrival!

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

Great. Loved that there was WiFi on flight to keep in touch and excellent service of beverages and snacks.

great flight. Pilot was communicative, flight attendants were excellent. Really nice experience except my tv didn’t work.

Overall, the flight was better than the flight I took to go to Florida, which had a bunch of problems. The crew is really nice and the plane was new so it had a small problem when we were on the runway, but the flight itself was great. They even made some time back up, which is always a good thing.

Everything was good except for deplaning in NY. Took way too long!!

Jet Blue keeps getting iit wrong. 4 hour mechanical delay followed by terrible boarding experience. This is my third horrific jet blue flight in 2024. I am going to try to avoid this loser in the sky

no wifi and the aircraft was very old with tiny 4” screens.

After we landed, we were held on the plane for 30 minutes. There was no one at the gate once we landed and we forced to sit on a plan that had already over an hour delayed.

Flawless trip. Pilot came out and introduced himself, welcomed everyone, made a light joke to put everyone at ease. Arrived quite early.

JetBlue's check-in was great, but there was an in-flight flight attendant who was very rude and unkind. I didn't realize that the bathrooms were already locked 30 mins prior to landing and needed to use the restroom. Instead of politely asking me to return, she rudely told me, 'No, bathrooms are locked! Go back to your seat!' The flight was more than an hour delay, which made me almost miss my connecting flight. I understand the reasoning, but the action they took to get a hold of maintenance was time consuming. It took them so long to get a hold of maintenance and for maintenance to get started. Most importantly, my 3 checked baggages are missing! I'm writing this review 3 days after my arrival to the Philippines, and my 3 checked baggages, where my wedding dress is, are all missing!

Safe takeoff and landing Better snacks and coffee. Headphones for the TV monitors.

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.

Not being able to purchase my check in baggage online was a negative.

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Comfort of seats, ease of boarding. Food selection could be better

I arrived to the airport 2 hours before my American Airlines flight was scheduled to take off. I have TSA pre-check. The airport was crazy packed when I arrived. After momentarily standing in the pre-check line, the TSA agent said that I am not pre-check. Of course I said that I am because I entered my KTN number on all my traveling sites and programs. I had to get out of line and go back to the AA counter to discover that American Airlines did not add my KTN to my boarding pass. I had to call TSA to find out my number, then have AA enter it onto my boarding pass. The emblem would not load onto my boarding pass. By this time, I decided to use my Clear in order to get through TSA but the line was ridiculous long. By the time I made through TSA, I missed my 11:08am flight and was re-booked for the 5:30pm. This is after the AA employee told me I should have gotten to the airport early. AA use to be a dependable airline not I use them only if I have too.

Horrible people at the gate, they force me to check in my carry on, even thought no one behind me has to do it. I had to get out of the airport in NY to get my bag and go thru security again on my way to Honk Kong. The worst part is the employee threatened me with loosing the flights if don’t comply.

I had the exit seat with all the leg room I could ask for. Great!

I wish there were no credit card announcements. I paid hundreds of dollars, I don't need to pay again by sitting through advertisements.

Cut off carry ons, had to check, got on and there was plenty of bin space. Disappointing.

One of the worst flights I have ever taken Delayed over an hour without communication from the crew; very scary Entertainment not working Crew NASTY cabin cold

May never fly American again Delay in take off WITHOUT EXPLANATION Cabin freezing Crew NASTY entertainment did not work entire flight

Book cheap flights from Seattle to Buffalo

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Buffalo found on KAYAK in the last 72 hours.
8/16Fri
1 stopFrontier
16h 38mSEA-BUF
$119
5/28Tue
1 stopJetBlue
7h 43mSEA-BUF
$120
6/6Thu
1 stopAmerican Airlines
9h 03mSEA-BUF
$127
6/4Tue
2 stopsAmerican Airlines
10h 24mSEA-BUF
$132
5/15Wed
1 stopDelta
7h 47mSEA-BUF
$224
8/14Wed
2 stopsAlaska Airlines
12h 57mSEA-BUF
$239
6/15Sat
2 stopsAlaska Airlines
12h 17mSEA-BUF
$249
5/29Wed
2 stopsUnited Airlines
15h 54mSEA-BUF
$263
5/27Mon
2 stopsDelta
14h 39mSEA-BUF
$277
5/15Wed
2 stopsUnited Airlines
11h 23mSEA-BUF
$289

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Last minute flights from Seattle to Buffalo

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 Seattle to Buffalo that are departing in the next 10 days.
5/5Sun
multi-stopFrontier
16h 32mSEA-BUF
5/11Sat
multi-stopFrontier
29h 28mBUF-SEA
$418
5/5Sun
multi-stopFrontier
16h 32mSEA-BUF
5/11Sat
multi-stopFrontier
29h 28mBUF-SEA
$488
5/6Mon
multi-stopJetBlue
11h 31mSEA-BUF
5/8Wed
multi-stopJetBlue
10h 24mBUF-SEA
$560
5/6Mon
multi-stopJetBlue
7h 43mSEA-BUF
5/10Fri
multi-stopJetBlue
10h 24mBUF-SEA
$604
5/4Sat
multi-stopJetBlue
10h 20mSEA-BUF
5/11Sat
multi-stopJetBlue
8h 37mBUF-SEA
$615
5/6Mon
multi-stopAmerican Airlines
10h 44mSEA-BUF
5/10Fri
multi-stopAmerican Airlines
8h 08mBUF-SEA
$657
5/6Mon
multi-stopJetBlue
11h 31mSEA-BUF
5/8Wed
multi-stopJetBlue
10h 24mBUF-SEA
$658
5/5Sun
multi-stopAmerican Airlines
9h 55mSEA-BUF
5/11Sat
multi-stopAmerican Airlines
11h 38mBUF-SEA
$663
5/6Mon
multi-stopUnited Airlines
11h 23mSEA-BUF
5/8Wed
multi-stopUnited Airlines
8h 48mBUF-SEA
$760
5/4Sat
multi-stopUnited Airlines
13h 01mSEA-BUF
5/11Sat
multi-stopUnited Airlines
9h 14mBUF-SEA
$767

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Seattle - Buffalo Flights

Departure:

Seattle (SEA)United States

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - Seattle

Cabin classes: