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$146+ 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BUF
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Buffalo are usually found in September or October, booked 88 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Buffalo (BUF). 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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$302
(Frontier)

One-way from

$146
(JetBlue)

Popular in

December

Cheapest in

September

Average price

$516
Provider with most accurate pricing for Seattle/Tacoma Intl-Buffalo flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Buffalo flights.
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From Seattle/Tacoma Intl to Buffalo
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One-way flight from Seattle/Tacoma Intl to Buffalo
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Highest demand for flights based on searches. 5% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 15, 2025.

This Frontier deal was found by Cheapflights users on 4/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:25 amSEA - BUF
1 stop7h 04mFrontier
Mon 6/95:24 pmBUF - SEA
1 stop10h 10mFrontier
Deal found 4/15$300
This Delta deal was found by Cheapflights users on 4/15. 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.
Thu 5/296:00 amSEA - BUF
1 stop8h 30mDelta
Tue 6/36:30 amBUF - SEA
1 stop6h 58mDelta
Deal found 4/15$325
This American Airlines deal was found by Cheapflights users on 4/15. 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.
Thu 5/296:20 amSEA - BUF
1 stop8h 04mAmerican Airlines
Sat 6/711:46 amBUF - SEA
1 stop10h 38mAmerican Airlines
Deal found 4/15$345
This JetBlue Airways deal was found by Cheapflights users on 4/14. 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 Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/139:50 pmSEA - BUF
1 stop10h 48mJetBlue
Sun 6/1512:23 pmBUF - SEA
1 stop12h 47mJetBlue
Deal found 4/14$346
This United Airlines deal was found by Cheapflights users on 4/15. 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.
Wed 7/211:02 amSEA - BUF
1 stop6h 59mUnited Airlines
Wed 7/97:45 pmBUF - SEA
1 stop8h 11mUnited Airlines
Deal found 4/15$370
This Gotogate deal was found by Cheapflights users on 4/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/66:25 amSEA - BUF
1 stop7h 04mMultiple Airlines
Sun 6/811:41 amBUF - SEA
1 stop14h 09mMultiple Airlines
Deal found 4/15$378
This Southwest deal was found by Cheapflights users on 4/15. 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.
Wed 7/169:10 pmSEA - BUF
1 stop7h 50mSouthwest
Wed 7/234:55 pmBUF - SEA
2 stops11h 20mSouthwest
Deal found 4/15$385
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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 5/2911:40 pmSEA - BUF
1 stop7h 01mAlaska Airlines
Sat 6/74:46 pmBUF - SEA
2 stops19h 23mAlaska Airlines
Deal found 4/15$450

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Buffalo 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 April 15, 2025.
Use the filters below to find and compare flights from Seattle to Buffalo that are best for you.

Fly from

Seattle

Fly to

Buffalo

Route

Depart

Return

Price

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 5/30

6:25 am-4:29 pm

1 stop7h 04m

Buffalo

Fri 6/6

5:24 pm-12:34 am

1 stop10h 10m

$302

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 5/13

6:00 am-5:28 pm

1 stop8h 28m

Buffalo

Tue 5/20

6:30 am-10:28 am

1 stop6h 58m

$307

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Sat 5/10

7:00 am-4:55 pm

1 stop6h 55m

Buffalo

Sun 5/25

7:55 pm-12:59 am

1 stop8h 04m

$344

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Fri 6/13

9:50 pm-11:38 am

1 stop10h 48m

Buffalo

Sun 6/15

12:23 pm-10:10 pm

1 stop12h 47m

$346

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 9/16

9:10 pm-8:05 am

1 stop7h 55m

Buffalo

Thu 9/25

4:25 pm-12:05 am

2 stops10h 40m

$385

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 8/7

10:00 pm-9:34 am

1 stop8h 34m

Buffalo

Wed 8/13

8:02 am-2:23 pm

1 stop9h 21m

$401

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Tue 9/16

8:08 am-11:54 pm

2 stops12h 46m

Buffalo

Tue 9/23

5:40 am-10:49 am

1 stop8h 09m

$448

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 6/26

11:59 pm-11:24 am

1 stop8h 25m

Buffalo

Sun 6/29

11:41 am-8:02 am

1 stop23h 21m

$465

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Wed 6/4

5:20 am-6:18 pm

1 stop9h 58m

$154

SeattleBuffalo

SEA - BUF

SEABUF

Seattle/Tacoma Intl

Thu 5/29

7:10 pm-4:29 pm

1 stop18h 19m

$155

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 17 results
1
2

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 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 Seattle-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Buffalo flight deals on Cheapflights vs. FlightHub >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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Buffalo. Price data was last updated on April 11, 2025.

The best time to book flights from Seattle to Buffalo is 88 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, January is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $256). Flying from Seattle to Buffalo in December is currently the most expensive (average of $337). 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?

Find hourly flight availability from Seattle to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

One of the essential ways to save on airfare from Seattle to Buffalo is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 15% on airfare.

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

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

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

Rainfall in Buffalo by month

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

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.

Temperature in Buffalo by month

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

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).

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated April 15, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from Seattle to Buffalo by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,876 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,917 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
JetBlue
7.3
Good
2,926 reviews
Alaska Airlines
8.0
Very good
9,876 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Comfort

7.9

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

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.

  • 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 $302 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $307 and $344 round-trip. Frontier is 40% 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?

    $146 is the cheapest one-way deal found within the past few days, from JetBlue. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $154 and $195, 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, January is the cheapest month in which you can book a flight from Seattle to Buffalo (average of $256). Flying from Seattle to Buffalo in December is currently the most expensive (average of $337). 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 Seattle?

Book flights to Seattle if you plan to visit one of these locations
West Seneca
Williamsville
Amherst
Batavia
Orchard Park
Cheektowaga

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See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Seattle to Buffalo

Discover the top 7 airlines that operate flights from Seattle to Buffalo. 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$154Average$324FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$239Average$314FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$294Average$493FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$342Average$529FlexibilityNo cancel feeOn-time69%
DeltaCheapest$342Average$537FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$379Average$500FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$445Average$649FlexibilityNo cancel feeOn-time75%

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