Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

SEA - BUF

$115 Find cheap flights from Seattle to Buffalo

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 5/29. 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
Thu 6/13
Thu 6/20

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 42,566,405 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

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

 
These are the cheapest deals for flights from Seattle to Buffalo currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Seattle to Buffalo

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Seattle to Buffalo.

Recent one-way flight deals from Seattle to Buffalo

Only flying one-way? Below are some of the best one-way flight deals from Seattle to Buffalo found on KAYAK recently.

Recent last minute flight deals from Seattle to Buffalo

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Seattle to Buffalo.

Recent direct flight deals from Seattle to Buffalo

The latest deals for direct flights from Seattle to Buffalo so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Seattle to Buffalo

Find recent round-trip train or bus tickets from Seattle to Buffalo.

All round-trip flight deals to Buffalo

The cheapest plane tickets to Buffalo found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
9:45 am - 6:02 pmSEA-BUF
29h 17m1 stop
5:25 pm - 7:14 pmBUF-SEA
28h 49m1 stop
$224Frontier
Find Deal
Fri, May 31 - Mon, Jun 3
9:37 am - 5:46 pmSEA-BUF
29h 09m1 stop
5:16 pm - 8:37 amBUF-SEA
18h 21m1 stop
$234Frontier
Find Deal
Thu, Sep 5 - Mon, Sep 9
10:32 pm - 8:51 amSEA-BUF
7h 19m1 stop
6:41 am - 11:45 amBUF-SEA
8h 04m1 stop
$253American Airlines
Find Deal
Sat, Sep 21 - Wed, Sep 25
6:30 am - 6:18 pmSEA-BUF
8h 48m1 stop
12:09 pm - 6:52 pmBUF-SEA
9h 43m1 stop
$256Delta
Find Deal
Wed, Sep 18 - Wed, Sep 25
11:50 pm - 11:57 amSEA-BUF
9h 07m2 stops
1:51 pm - 7:02 pmBUF-SEA
8h 11m1 stop
$260American Airlines
Find Deal
Fri, Sep 6 - Mon, Sep 9
10:50 pm - 9:37 amSEA-BUF
7h 47m1 stop
6:00 pm - 10:22 pmBUF-SEA
7h 22m1 stop
$283United Airlines
Find Deal
Fri, Sep 20 - Tue, Sep 24
11:15 pm - 11:15 amSEA-BUF
9h 00m1 stop
12:09 pm - 6:52 pmBUF-SEA
9h 43m1 stop
$337Delta
Find Deal
Tue, Oct 29 - Sat, Nov 2
11:29 pm - 9:41 amSEA-BUF
7h 12m1 stop
5:51 pm - 10:23 pmBUF-SEA
7h 32m1 stop
$412United Airlines
Find Deal
Mon, Jun 10 - Sat, Jun 15
6:07 am - 3:47 pmSEA-BUF
6h 40m1 stop
4:57 pm - 11:44 pmBUF-SEA
9h 47m1 stop
$517Alaska Airlines
Find Deal
Sun, Sep 22 - Mon, Sep 23
6:07 am - 3:46 pmSEA-BUF
6h 39m1 stop
4:36 pm - 11:59 pmBUF-SEA
10h 23m1 stop
$578Alaska Airlines
Find Deal
Tue, Jun 25 - Tue, Jul 2
8:34 am - 9:56 pmSEA-BUF
10h 22m1 stop
$115Frontier
Find Deal
Wed, May 29
9:49 pm - 6:07 pmSEA-BUF
17h 18m1 stop
$119Frontier
Find Deal
Thu, May 30
5:53 am - 5:56 pmSEA-BUF
9h 03m1 stop
$127American Airlines
Find Deal
Sat, Jun 8
5:29 am - 4:48 pmSEA-BUF
8h 19m1 stop
$128American Airlines
Find Deal
Tue, Aug 13
11:15 pm - 10:41 amSEA-BUF
8h 26m1 stop
$152JetBlue
Find Deal
Fri, Jul 26
11:15 pm - 10:41 amSEA-BUF
8h 26m1 stop
$231JetBlue
Find Deal
Tue, Jul 9
12:40 am - 6:19 pmSEA-BUF
14h 39m2 stops
$254Delta
Find Deal
Tue, May 28
3:35 pm - 9:41 amSEA-BUF
15h 06m2 stops
$258United Airlines
Find Deal
Tue, Jun 4
12:40 am - 6:34 pmSEA-BUF
14h 54m2 stops
$283Delta
Find Deal
Thu, May 30
6:45 am - 11:56 pmSEA-BUF
14h 11m2 stops
$317United Airlines
Find Deal
Tue, Jul 9

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, Wednesday 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 $322 on average. On the other hand, the most expensive months are December and July, where the average cost of tickets is $743 and $638 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 1 week 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 $115. Frontier proposed a round-trip connection from $224 and American Airlines from $253.

Good to know

Low season

January

High season

July

Cheapest flight

$115
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 24% 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 $115 for a one-way ticket and $224 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 $703 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 9152 reviews
7.3Food
8.2Boarding
7.3Entertainment
8.6Crew
7.9Comfort
Airline reviews

another delayed flight. no one at the desk kept us updated. we found out by an email as the desk was not even staffed up to expected takes off

2.0 MediocreAnonymous, May 2024SEA - MSO
Read more about Alaska Airlines reviews

another delayed flight. no one at the desk kept us updated. we found out by an email as the desk was not even staffed up to expected takes off

They canceled my flight going back to SF after I was at the airport. Wanted me to take a flight 14 hours later. Not a happy camper.

Service was excellent. Staff at check in cleared hurdles for me so I could travel with my service animal.

Flight cancelled an hour before takeoff due to "unscheduled maintenance". New flight makes me have to wait for 5 hours in the airport, at a gate totally on the other side of where I'm at, requiring me to take a tram to get from the N terminal, to the C terminal. After waiting for 5 hours I'm informed my new flight is no longer at the gate I'm at, but instead is back in the N terminal where I was previously.

Delayed an hour and sat without updates. Ended up an hour late to destination

The flight was decent again if there was a place that you could put crying children that would be great. Or maybe make a rule against allowing infants on the plane.

Everything was fine -- on time, clear, clean. I don't want to pay extra for in-flight wi-fi

The flight was delayed because the pilots had not arrived on their previous flight yet. The flight was 100% full so it was pretty crowded. I miss having the screens on the back of the seats. It would be great if the Alaska planes had the clip so you can put your phone or tablet on the back of the seat in front of you to not strain your neck. Everything else was very smooth.

It was fine since it ensure we went to our destination in time.

I bought the cheapest ticket. No meal, no checked luggage so I didn't expect much and was surprised by how good the flight and service was. Alaska is now my favorite airline.

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

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.

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.

No lounge access with “United First” ticket. False alarm about late flight, jeopardizing connection. Wrong meal. Loose power socket would not hold plug, could not charge device. In-flight access to text messaging did not work. Toilet seat on plane would not stay up.

We ended up with seats in the very back. So they did not recline. Have no idea why, we reserved and checked in very early. The isles were very narrow and the seats had very little leg room. But they did give us water, and a snack.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

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

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

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

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

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

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

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

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

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.
5/29Wed
1 stopFrontier
10h 22mSEA-BUF
$115
5/30Thu
1 stopFrontier
17h 18mSEA-BUF
$119
6/8Sat
1 stopAmerican Airlines
9h 03mSEA-BUF
$127
8/13Tue
1 stopAmerican Airlines
8h 19mSEA-BUF
$128
7/26Fri
1 stopJetBlue
8h 26mSEA-BUF
$152
7/9Tue
1 stopJetBlue
8h 26mSEA-BUF
$231
5/28Tue
2 stopsDelta
14h 39mSEA-BUF
$254
6/4Tue
2 stopsUnited Airlines
15h 06mSEA-BUF
$258
5/30Thu
2 stopsDelta
14h 54mSEA-BUF
$283
7/9Tue
2 stopsUnited Airlines
14h 11mSEA-BUF
$317

Search by stops

Search by airline

Search by price

Seattle - Buffalo Flights

Departure:

Seattle (undefined)United States

Destination:

Buffalo (BUF)United States

Return flight deals:

Buffalo - Seattle

Cabin classes: