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$172+ Cheap flights from Buffalo to Seattle (BUF - SEA)

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SEA
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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The best prices from Buffalo to Seattle/Tacoma Intl are usually found in October or September, booked 48 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Buffalo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$288
(JetBlue)

One-way from

$172
(American Airlines)

Popular in

July

Cheapest in

October

Average price

$516
Provider with most accurate pricing for Buffalo-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Buffalo-Seattle/Tacoma Intl flights.
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From Buffalo to Seattle/Tacoma Intl
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One-way flight from Buffalo to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 11% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Buffalo to Seattle

Cheapest flights from Buffalo to Seattle
Explore the most affordable flight options available from Buffalo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This JetBlue deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/110:33 amBUF - SEA
1 stop12h 40mJetBlue
Tue 5/69:30 pmSEA - BUF
1 stop9h 14mJetBlue
Deal found 2/21$288
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/216:00 amBUF - SEA
1 stop11h 22mDelta
Fri 3/2810:30 pmSEA - BUF
1 stop9h 42mDelta
Deal found 2/20$343
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1111:40 amBUF - SEA
1 stop14h 10mSun Country Air
Sat 7/1911:59 pmSEA - BUF
1 stop7h 45mSun Country Air
Deal found 2/21$360
This American Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/143:46 pmBUF - SEA
1 stop9h 19mAmerican Airlines
Mon 3/1711:59 pmSEA - BUF
1 stop7h 50mAmerican Airlines
Deal found 2/21$368
This Southwest deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/212:55 pmBUF - SEA
2 stops11h 30mSouthwest
Thu 4/249:35 amSEA - BUF
1 stop8h 40mSouthwest
Deal found 2/21$385
This United Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/117:55 pmBUF - SEA
1 stop8h 00mUnited Airlines
Fri 7/1812:30 amSEA - BUF
1 stop9h 40mUnited Airlines
Deal found 2/21$418
This Expedia deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/112:50 pmBUF - SEA
1 stop12h 55mMultiple Airlines
Sun 6/156:00 amSEA - BUF
1 stop6h 46mMultiple Airlines
Deal found 2/21$545
This Alaska Airlines deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/175:25 amBUF - SEA
2 stops15h 29mAlaska Airlines
Tue 4/2211:59 pmSEA - BUF
1 stop6h 39mAlaska Airlines
Deal found 2/21$557
This FlightHub deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/235:16 pmBUF - SEA
1 stop10h 27mFrontier
Thu 6/125:08 pmSEA - BUF
1 stop19h 48mFrontier
Deal found 2/21$742

Find flights from Buffalo to Seattle within your budget

Customize your flight search to find flights from Buffalo to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.

Fly from

Buffalo

Fly to

Seattle

Route

Depart

Return

Price

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 5/1

10:33 am-8:13 pm

1 stop12h 40m

Seattle/Tacoma Intl

Tue 5/6

9:30 pm-9:44 am

1 stop9h 14m

$288

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 3/21

6:00 am-2:22 pm

1 stop11h 22m

Seattle/Tacoma Intl

Fri 3/28

10:30 pm-11:12 am

1 stop9h 42m

$343

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 7/11

11:40 am-10:50 pm

1 stop14h 10m

Seattle/Tacoma Intl

Sat 7/19

11:59 pm-10:44 am

1 stop7h 45m

$360

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 3/14

3:46 pm-10:05 pm

1 stop9h 19m

Seattle/Tacoma Intl

Mon 3/17

11:59 pm-10:49 am

1 stop7h 50m

$368

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Mon 4/21

2:55 pm-11:25 pm

2 stops11h 30m

Seattle/Tacoma Intl

Thu 4/24

9:35 am-9:15 pm

1 stop8h 40m

$385

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 7/11

7:55 pm-12:55 am

1 stop8h 00m

Seattle/Tacoma Intl

Fri 7/18

12:30 am-1:10 pm

1 stop9h 40m

$418

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Sun 6/1

12:50 pm-10:45 pm

1 stop12h 55m

Seattle/Tacoma Intl

Sun 6/15

6:00 am-3:46 pm

1 stop6h 46m

$545

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Thu 4/17

5:25 am-5:54 pm

2 stops15h 29m

Seattle/Tacoma Intl

Tue 4/22

11:59 pm-9:38 am

1 stop6h 39m

$557

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Fri 5/23

5:16 pm-12:43 am

1 stop10h 27m

Seattle/Tacoma Intl

Thu 6/12

5:08 pm-3:56 pm

1 stop19h 48m

$742

BuffaloSeattle

BUF - SEA

BUFSEA

Buffalo

Tue 3/11

6:00 am-12:50 pm

1 stop9h 50m

$172

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 15 results
1
2

Compare providers for flights from Buffalo to Seattle

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 Buffalo to Seattle in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

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

Have a flexible travel schedule? Discover the best time to fly to Seattle from Buffalo 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.

Travel insights for flights from Buffalo to Seattle

Get recent, data-driven insights about flights from Buffalo to Seattle including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Seattle. Price data was last updated on February 14, 2025.

The best time to book flights from Buffalo to Seattle is 48 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 Buffalo to Seattle?

Currently, January is the cheapest month in which you can book a flight from Buffalo to Seattle (average of $238). Flying from Buffalo to Seattle in July is currently the most expensive (average of $411). 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 BUF to SEA?

Find hourly flight availability from Buffalo to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 20% on flights from Buffalo to Seattle by exploring options for tickets in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Buffalo to Seattle. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Buffalo to Seattle flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated February 22, 2025.
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,401 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,213 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

JetBlue
7.4
Good
3,069 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,759 reviews
Southwest
8.1
Very good
4,401 reviews

Boarding

8.2

Comfort

8.1

Crew

8.7

Food

7.1

Entertainment

7.6

Overall

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Related info for your journey

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

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

    Cheapflights users have booked flights from Buffalo to Seattle round-trip from $288. Other airlines that can offer you cheap pricing are Delta, from $343, and Southwest, from $385. JetBlue is currently priced 41% below the average price you’ll pay for this route.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $172. United Airlines flights start at $198 while deals on Delta start at $429 one-way.

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

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

  • How can I find direct flights from Buffalo to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Buffalo to Seattle 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 Buffalo to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Buffalo to Seattle (average of $238). Flying from Buffalo to Seattle in July is currently the most expensive (average of $411). 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

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

Browse thousands of different options on Cheapflights for your next trip

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Buffalo to Seattle

Discover the top 8 airlines that operate flights from Buffalo to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$196Average$316FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$239Average$314FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$267Average$497FlexibilityNo cancel feeOn-time71%
DeltaCheapest$271Average$513FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$303Average$380FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$322Average$529FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$345Average$527FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$499Average$655FlexibilityNo cancel feeOn-time75%
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