SEA - BUF

C$ 217 Find Cheap Flights from Seattle to Buffalo – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 432
Typical prices: C$ 558-C$ 895
Delta
Sun 7/10Wed 10/10
SEA - BUF • 1 stop
Cheapest one-way flights
C$ 217
Typical prices: C$ 303-C$ 507
United Airlines
Sat 20/10
SEA - BUF • 1 stop
Direct flights
There are currently no direct flights between Seattle and Buffalo. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 16 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg C$ 421 (round-trip)
Shortest trip • 6h 39m (one-way)
Insights
Insights
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We hope you enjoy your trip to Buffalo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Buffalo (SEA-BUF)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Buffalo

Wed, 7 Oct - Sat, 10 Oct
Delta Logo
11:10 p.m. - 8:26 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
6h 16m1 stop Detroit Metropolitan Wayne County
Delta Logo
3:53 p.m. - 11:04 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
10h 11m1 stop New York John F Kennedy Intl
C$ 432Delta
Tue, 20 Oct - Tue, 27 Oct
Southwest Logo
12:10 a.m. - 10:25 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
7h 15m1 stop Chicago Midway
Southwest Logo
4:00 p.m. - 10:40 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
9h 40m1 stop Denver Intl
C$ 433Southwest
Wed, 9 Dec - Wed, 6 Jan
United Airlines Logo
7:00 a.m. - 8:34 p.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
10h 34m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:30 a.m. - 11:30 a.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
8h 00m1 stop Chicago O'Hare Intl
C$ 439United Airlines
Tue, 20 Oct - Tue, 27 Oct
Southwest Logo
12:10 a.m. - 10:25 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
7h 15m1 stop Chicago Midway
Southwest Logo
9:30 a.m. - 7:05 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
12h 35m2 stops Nashville Intl Denver Intl
C$ 442Southwest
Sat, 10 Oct - Fri, 23 Oct
Delta Logo
11:12 p.m. - 11:07 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
8h 55m1 stop Detroit Metropolitan Wayne County
Delta Logo
9:06 a.m. - 2:45 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
8h 39m1 stop Detroit Metropolitan Wayne County
C$ 493Delta
Tue, 2 Feb - Fri, 5 Feb
Southwest Logo
6:35 a.m. - 4:05 p.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
6h 30m1 stop Chicago Midway
Southwest Logo
8:30 a.m. - 1:00 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
7h 30m1 stop Chicago Midway
C$ 495Southwest
Tue, 13 Oct - Tue, 20 Oct
United Airlines Logo
11:13 p.m. - 9:29 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
7h 16m1 stop Chicago O'Hare Intl
United Airlines Logo
10:46 a.m. - 6:44 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
10h 58m2 stops Chicago O'Hare Intl San Francisco
C$ 497United Airlines
Thu, 5 Nov - Mon, 9 Nov
Southwest Logo
11:10 a.m. - 11:50 p.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
9h 40m2 stops Sacramento Intl Baltimore/Washington
Southwest Logo
4:55 p.m. - 11:05 p.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
9h 10m1 stop Denver Intl
C$ 502Southwest
Thu, 5 Nov - Mon, 9 Nov
Southwest Logo
11:10 a.m. - 11:50 p.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
9h 40m2 stops Sacramento Intl Baltimore/Washington
Southwest Logo
4:55 p.m. - 1:20 a.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
11h 25m2 stops Denver Intl Las Vegas Harry Reid Intl
C$ 510Southwest
Wed, 28 Oct - Fri, 6 Nov
Southwest Logo
12:10 a.m. - 10:25 a.m.SEA  Seattle/Tacoma Intl-BUF Buffalo
7h 15m1 stop Chicago Midway
Southwest Logo
7:10 p.m. - 12:45 a.m.BUF  Buffalo-SEA Seattle/Tacoma Intl
8h 35m1 stop Chicago Midway
C$ 525Southwest
Booking Insights

Price, demand, and travel trends for Seattle to Buffalo flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from Seattle to Buffalo with more confidence.

How much is a round-trip flight from Seattle to Buffalo?

Round-trip flights from Seattle to Buffalo start at C$ 432. Prices are below average for this route right now, with typical round-trip fares ranging from C$ 558 to C$ 895. The lowest price found in the past 5 days was C$ 432 on Delta.

What's the cheapest day of the week to fly from Seattle to Buffalo?

Tuesday is the cheapest day of the week to fly from Seattle to Buffalo and is 10% cheaper than the average day. Monday is the most expensive day with flight prices 27% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • March is the cheapest month to fly from Seattle to Buffalo at C$ 497 round-trip.
  • December (C$ 902) and July (C$ 810) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 81% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Seattle to Buffalo the cheapest?

Flights from Seattle to Buffalo are cheapest 16 weeks before departure. Booking in this window typically costs about 45% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Key details for Seattle to Buffalo flights

Low season

February

Cheapest flight

C$ 217
Best time to beat the crowds but there is an average 8% increase in price.
Flights 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

Your Seattle to Buffalo flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • 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.

  • Which airports can I use when flying from Seattle to Buffalo?

    Flights from Seattle to Buffalo usually depart from Seattle/Tacoma Intl (SEA) and arrive at Buffalo (BUF).

  • Which cabin classes can I book on flights from Seattle to Buffalo?

    Only Economy Class is available on flights from Seattle to Buffalo.

  • Which airports do connecting flights from Seattle to Buffalo pass through?

    One-stop flights from Seattle to Buffalo most commonly connect through:

    • Chicago O'Hare Intl (ORD) – 61% of one-stop connections
    • Detroit Metropolitan Wayne County (DTW) – 18% of one-stop connections
    • Denver Intl (DEN) – 7% of one-stop connections
    • Chicago Midway (MDW) – 7% of one-stop connections

    Chicago O'Hare Intl (ORD) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Seattle to Buffalo?

    Yes. Being flexible with your travel dates can save you up to 29% on the Seattle to Buffalo route. Tuesday is the cheapest departure day at C$ 638 round-trip on average, while Monday is the most expensive at C$ 897, a difference of C$ 260. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How expensive are last-minute Seattle to Buffalo flights?

    Last-minute fares on this route – booked within 2 weeks of departure – run 49% above the route average of C$ 704. Book 16 weeks before departure for the lowest fares.

  • How long does a flight from Seattle to Buffalo take?

    A direct flight from Seattle to Buffalo takes 0h 00m, covering 5,477 km.

  • Do I need a passport to fly from Seattle to Buffalo?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • How are flight prices from Seattle to Buffalo looking right now?

    One-way fares from Seattle to Buffalo are currently lower than usual. Average one-way flight prices are about C$ 269, which is 31% below the typical average for this route.

  • How much time can I save by choosing a different layover airport when travelling from Seattle to Buffalo?

    Flying via Minneapolis St Paul (MSP) gives the shortest average 1-stop total travel time at 6h 39m, compared with 7h 34m via Detroit Metropolitan Wayne County (DTW) and 7h 45m via Chicago Midway (MDW).

  • What is the time difference between Seattle and Buffalo?

    Buffalo is 3 hours ahead of Seattle (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Buffalo Airport (BUF)?

    Buffalo Airport (BUF) hosts 5 major car rental companies, with daily rates starting from around C$ 27 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Alamo
    • Thrifty

  • How much should I expect to pay for a Seattle to Buffalo flight?

    Round-trip flights from Seattle to Buffalo range from C$ 558 to C$ 895, with an average of C$ 704 over the past 12 months. Anything below C$ 558 counts as a good deal.

Your guide to booking Seattle to Buffalo flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure instead of Monday. On this route, Tuesday flights average C$ 638 – about C$ 260 less than Monday (29% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 45% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Buffalo trip for March. Fares historically average C$ 497 round-trip in that month – typically C$ 404 less than the most expensive month, which is December (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Buffalo Airport.
    - Aloft Buffalo Airport
    - Comfort Inn and Suites Buffalo Airport
    - TownePlace Suites by Marriott Buffalo Airport
  • 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.

More options for your flight from Seattle to Buffalo

Complete your trip to Buffalo with a hotel stay or car rental