How long is the flight from Seattle to Buffalo?

There are many flights that can get you from Seattle to Buffalo in 7h 43m. Fly via United Airlines or American Airlines to get the fastest option. There are 2115 mi between Seattle and Buffalo. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from Seattle to Buffalo round-trip?

Our cheapest airline available from Seattle to Buffalo is Frontier. Our recent data shows that you can find tickets from as low as $139 on this airline. Additional options worth looking into are JetBlue and Delta, starting at $145 and $257 round-trip. Frontier is 71% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Seattle to Buffalo one-way?

$73 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Sun Country Air and JetBlue, with prices starting from $116 and $125, respectively.

In terms of precipitation, rainfall in Buffalo ranges from 2.5 - 4.0 inches per month. November is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Buffalo when rainfall is around 2.5 in.

If weather is an important factor for your trip to Buffalo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

What are the most popular airlines that fly from Seattle to Buffalo?

Before booking your flight from Seattle to Buffalo check out the most popular airlines for this route: American Airlines, United Airlines or Delta.

Most accurate provider : When it comes to deals on Seattle-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Buffalo flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Seattle-Buffalo flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Seattle to Buffalo that include hotel bookings?

Yes. In addition to deals on Seattle to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Seattle to Buffalo?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Buffalo.

Can I find deals for business class flights from Seattle to Buffalo?

Yes. Cheapflights offers flight deals from Seattle to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$142+ Flights from Seattle to Buffalo

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Buffalo are usually found in September or October, booked 11 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Buffalo

Cheapest flights from Seattle to Buffalo
Explore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Wed 12/3111:15 pmSEA - BUF

1 stop7h 31mUnited Airlines

Sun 1/46:30 amBUF - SEA

2 stops17h 47mUnited Airlines

Deal found 12/21

$687

Sat 12/2710:55 pmSEA - BUF

1 stop15h 17mDelta

Wed 1/711:51 amBUF - SEA

1 stop11h 09mDelta

Deal found 12/21

$796

Tue 12/233:55 pmSEA - BUF

1 stop22h 17mDelta

Wed 1/76:03 amBUF - SEA

1 stop7h 39mDelta

Deal found 12/21

$826

Mon 12/225:25 amSEA - BUF

2 stops15h 03mDelta

Wed 1/73:38 pmBUF - SEA

1 stop9h 47mDelta

Deal found 12/21

$831

Wed 12/243:50 pmSEA - BUF

2 stops14h 56mUnited Airlines

Wed 1/76:00 amBUF - SEA

2 stops16h 55mUnited Airlines

Deal found 12/21

$846

Tue 12/238:00 amSEA - BUF

2 stops11h 55mUnited Airlines

Wed 1/76:00 amBUF - SEA

2 stops16h 55mUnited Airlines

Deal found 12/21

$849

Sat 12/273:55 pmSEA - BUF

1 stop16h 26mDelta

Tue 1/66:03 amBUF - SEA

1 stop18h 46mDelta

Deal found 12/21

$860

Mon 12/2211:15 pmSEA - BUF

1 stop7h 31mUnited Airlines

Tue 1/610:45 amBUF - SEA

1 stop10h 29mUnited Airlines

Deal found 12/21

$862

Mon 12/226:00 amSEA - BUF

1 stop8h 48mAlaska Airlines

Mon 1/56:00 amBUF - SEA

1 stop7h 47mAlaska Airlines

Deal found 12/21

$882

Mon 12/226:00 amSEA - BUF

1 stop8h 48mAlaska Airlines

Tue 1/65:12 amBUF - SEA

2 stops16h 06mAlaska Airlines

Deal found 12/21

$887

Best flights from Seattle to Buffalo
Discover carefully curated flight deals from Seattle to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 23, 2025.

Sat 2/1411:35 pmSEA - BUF

1 stop7h 43mUnited Airlines

Wed 2/188:25 amBUF - SEA

1 stop8h 24mUnited Airlines

Deal found 12/21

$301

Thu 2/2611:18 pmSEA - BUF

1 stop8h 41mAmerican Airlines

Mon 3/23:53 pmBUF - SEA

2 stops10h 36mAmerican Airlines

Deal found 12/22

$390

Thu 3/1211:15 pmSEA - BUF

1 stop7h 35mDelta

Sun 3/156:15 amBUF - SEA

1 stop7h 18mDelta

Deal found 12/21

$488

Thu 2/265:00 amSEA - BUF

2 stops15h 44mUnited Airlines

Mon 3/22:54 pmBUF - SEA

2 stops11h 57mUnited Airlines

Deal found 12/21

$501

Mon 1/57:00 amSEA - BUF

1 stop6h 54mUnited Airlines

Thu 1/89:55 amBUF - SEA

2 stops11h 32mUnited Airlines

Deal found 12/22

$562

Last-minute flights from Seattle to Buffalo
Discover last-minute flight deals from Seattle to Buffalo. Data last updated December 23, 2025 and is based on user searches.

Sat 12/2710:55 pmSEA - BUF

1 stop15h 17mDelta

Wed 1/711:51 amBUF - SEA

1 stop11h 09mDelta

Deal found 12/21

$796

Wed 12/3111:15 pmSEA - BUF

1 stop7h 31mUnited Airlines

Sun 1/46:30 amBUF - SEA

2 stops17h 47mUnited Airlines

Deal found 12/21

$687

Mon 1/57:00 amSEA - BUF

1 stop6h 54mUnited Airlines

Thu 1/82:49 pmBUF - SEA

1 stop9h 08mUnited Airlines

Deal found 12/22

$557

Tue 1/69:34 amSEA - BUF

1 stop10h 21mAlaska Airlines

Sat 1/105:16 amBUF - SEA

1 stop8h 39mAlaska Airlines

Deal found 12/22

$697

Fri 1/232:04 pmSEA - BUF

1 stop17h 48mAmerican Airlines

Mon 1/2612:58 pmBUF - SEA

1 stop10h 47mAmerican Airlines

Deal found 12/21

$386

Fri 1/236:45 amSEA - BUF

1 stop6h 35mSouthwest

Mon 1/2612:20 pmBUF - SEA

2 stops13h 45mSouthwest

Deal found 12/21

$416

One-way flights from Seattle to Buffalo
Search for one-way flight options from Seattle to Buffalo. Find affordable one-way fares based on user searches. Data last updated December 23, 2025.

Sun 2/812:34 pmSEA - BUF

3 stops21h 10mMultiple Airlines

Deal found 12/22

$142

Fri 1/3012:34 pmSEA - BUF

2 stops20h 00mFrontier

Deal found 12/20

$145

Sat 1/3112:54 pmSEA - BUF

3 stops44h 50mMultiple Airlines

Deal found 12/20

$170

Mon 2/91:11 pmSEA - BUF

3 stops26h 10mMultiple Airlines

Deal found 12/22

$174

Thu 2/512:34 pmSEA - BUF

2 stops27h 02mFrontier

Deal found 12/22

$178

Sat 1/317:00 amSEA - BUF

1 stop7h 40mUnited Airlines

Deal found 12/20

$184

Thu 2/59:55 pmSEA - BUF

1 stop14h 03mDelta

Deal found 12/22

$187

Sat 1/317:35 amSEA - BUF

2 stops10h 41mAmerican Airlines

Deal found 12/20

$189

Sun 1/117:23 pmSEA - BUF

2 stops13h 37mFrontier

Deal found 12/22

$192

Fri 1/302:04 pmSEA - BUF

1 stop17h 48mAmerican Airlines

Deal found 12/20

$199

Thu 2/510:51 amSEA - BUF

3 stops22h 53mMultiple Airlines

Deal found 12/22

$204

Find flight deals from Seattle to Buffalo

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$295 (Priceline)
One-way from	$142 (Kiwi.com)
Popular in	December
Cheapest in	September
Average price	$746

Provider with most accurate pricing for Seattle/Tacoma Intl-Buffalo flight deals.

Search Deals

Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Buffalo flights.

Search Deals

From Seattle/Tacoma Intl to Buffalo

Search Deals

One-way flight from Seattle/Tacoma Intl to Buffalo

Search Deals

Highest demand for flights based on searches. 18% potential increase in price ($109 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 2/14

11:35 pm-10:18 am

1 stop7h 43m

Buffalo

Wed 2/18

8:25 am-1:49 pm

1 stop8h 24m

$301

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 2/26

11:18 pm-10:59 am

1 stop8h 41m

Buffalo

Mon 3/2

3:53 pm-11:29 pm

2 stops10h 36m

$390

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 3/12

11:15 pm-9:50 am

1 stop7h 35m

Buffalo

Sun 3/15

6:15 am-10:33 am

1 stop7h 18m

$488

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 2/26

5:00 am-11:44 pm

2 stops15h 44m

Buffalo

Mon 3/2

2:54 pm-11:51 pm

2 stops11h 57m

$501

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 1/5

7:00 am-4:54 pm

1 stop6h 54m

Buffalo

Thu 1/8

9:55 am-6:27 pm

2 stops11h 32m

$562

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sun 2/8

12:34 pm-12:44 pm

3 stops21h 10m

$142

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 1/31

12:54 pm-12:44 pm

3 stops44h 50m

$170

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Mon 2/9

1:11 pm-6:21 pm

3 stops26h 10m

$174

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 2/5

12:34 pm-6:36 pm

2 stops27h 02m

$178

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 1/31

7:00 am-5:40 pm

1 stop7h 40m

$184

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 16 results

Compare providers for flights from Seattle to Buffalo

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Buffalo in December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Seattle-Buffalo flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Seattle-Buffalo flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Seattle-Buffalo flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Seattle-Buffalo flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Seattle with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

The best time to book flights from Seattle to Buffalo is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Buffalo?

Currently, September is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $151). Flying from Seattle to Buffalo in April is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to BUF?

One of the essential ways to save on airfare from Seattle to Buffalo is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 47% on airfare.

Reviews of airlines servicing Buffalo

See what other customers who have flown with Southwest, Delta, and United Airlines from Seattle to Buffalo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,253 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,014 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,105 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,054 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.8

Fair

3,075 reviews

Southwest

8.0

Very good

4,253 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from Seattle to Buffalo?
There are many flights that can get you from Seattle to Buffalo in 7h 43m. Fly via United Airlines or American Airlines to get the fastest option. There are 2115 mi between Seattle and Buffalo. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from Seattle to Buffalo round-trip?
Our cheapest airline available from Seattle to Buffalo is Frontier. Our recent data shows that you can find tickets from as low as $139 on this airline. Additional options worth looking into are JetBlue and Delta, starting at $145 and $257 round-trip. Frontier is 71% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Seattle to Buffalo one-way?
$73 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Sun Country Air and JetBlue, with prices starting from $116 and $125, respectively.
Can I find deals for flights from Seattle to Buffalo that include hotel bookings?
Yes. In addition to deals on Seattle to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Buffalo?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Buffalo.
Can I find deals for business class flights from Seattle to Buffalo?
Yes. Cheapflights offers flight deals from Seattle to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Seattle to Buffalo?
Currently, September is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $151). Flying from Seattle to Buffalo in April is currently the most expensive (average of $283). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 7 airlines flying from Seattle to Buffalo

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$139	Average$287	FlexibilityNo cancel fee	On-time62%
JetBlue	Cheapest$167	Average$287	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$286	Average$461	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$296	Average$517	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$296	Average$468	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$335	Average$462	FlexibilityNo cancel fee	On-time63%
Alaska Airlines	Cheapest$551	Average$776	FlexibilityNo cancel fee	On-time75%

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$142+ Cheap flights from Seattle to Buffalo (SEA - BUF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Seattle to Buffalo with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Buffalo are usually found in September or October, booked 11 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Buffalo

Cheapest flights from Seattle to BuffaloExplore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Explore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

Find flight deals from Seattle to Buffalo

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Buffalo that are best for you.

Compare providers for flights from Seattle to Buffalo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Buffalo in December.

Best time to book a flight from Seattle to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Seattle with our price prediction graph.

Cheapflights Insights

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

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

What is the cheapest month to book a flight from Seattle to Buffalo?

What is the cheapest time of day to fly from SEA to BUF?

Reviews of airlines servicing Buffalo

See what other customers who have flown with Southwest, Delta, and United Airlines from Seattle to Buffalo have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Seattle to Buffalo?

What are the cheapest airlines flying from Seattle to Buffalo round-trip?

What are the cheapest airlines to fly from Seattle to Buffalo one-way?

Can I find deals for flights from Seattle to Buffalo that include hotel bookings?

How can I find direct flights from Seattle to Buffalo?

Can I find deals for business class flights from Seattle to Buffalo?

What is the cheapest month to book a flight from Seattle to Buffalo?

Traveling to a place near Buffalo?

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Alternative routes for Seattle to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Seattle to Buffalo

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Cheapest flights from Seattle to Buffalo
Explore the most affordable flight options available from Seattle to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.