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Cheap flights from Seattle to Buffalo from C$ 218

SEA — BUF
20 Oct — 27 Oct1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Buffalo

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Buffalo

Wed 14/1011:13 p.m. -
1 stop7h 16m
Wed 21/1010:10 a.m. -
1 stop8h 41m
Deal found 16/9C$ 435
Wed 14/1011:13 p.m. -
1 stop7h 16m
Sat 24/1010:46 a.m. -
2 stops9h 51m
Deal found 17/9C$ 442
Tue 10/115:40 a.m. -
2 stops12h 10m
Wed 11/113:55 p.m. -
2 stops10h 40m
Deal found 16/9C$ 449
Mon 9/1110:52 p.m. -
1 stop8h 43m
Wed 11/113:20 p.m. -
1 stop10h 40m
Deal found 16/9C$ 466
Thu 5/115:15 a.m. -
1 stop8h 00m
Tue 10/113:55 p.m. -
2 stops10h 40m
Deal found 15/9C$ 473
Fri 16/1011:10 p.m. -
1 stop9h 25m
Sat 17/103:53 p.m. -
1 stop10h 11m
Deal found 17/9C$ 496
Sat 31/106:00 a.m. -
1 stop6h 13m
Sat 7/113:53 p.m. -
1 stop10h 11m
Deal found 19/9C$ 499
Tue 13/1011:13 p.m. -
1 stop7h 16m
Tue 20/1010:46 a.m. -
2 stops10h 58m
Deal found 15/9C$ 501
Mon 26/109:15 p.m. -
2 stops10h 10m
Thu 29/107:35 p.m. -
1 stop8h 05m
Deal found 16/9C$ 503
Fri 6/115:30 a.m. -
1 stop6h 55m
Tue 10/113:55 p.m. -
2 stops10h 40m
Deal found 15/9C$ 505

Find flight deals from Seattle to Buffalo

Round-trip from

C$ 435

One-way from

C$ 218

Popular in

December

Cheapest in

March

Average price

C$ 666
United Airlines
  • United Airlines
  • 14/10-24/10
  • 2 total stops
  • 15h 22m total
  • Seattle to Buffalo
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Delta
  • Delta
  • 20/10-31/12
  • 1 total stop
  • 5h 59m total
  • Seattle to Buffalo
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 17/10

11:10 p.m.-8:26 a.m.

1 stop6h 16m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 218

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 6/10

7:15 a.m.-6:56 p.m.

1 stop8h 41m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 218

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 6/10

7:25 p.m.-9:29 a.m.

2 stops11h 04m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 225

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 12/12

1:05 p.m.-10:25 p.m.

1 stop6h 20m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 250

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Mon 14/12

11:15 p.m.-8:34 a.m.

1 stop6h 19m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 250

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Mon 26/10

7:35 p.m.-9:42 a.m.

2 stops11h 07m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 256

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Mon 14/12

7:30 p.m.-9:44 a.m.

2 stops11h 14m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 257

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Fri 23/10

6:05 p.m.-9:35 a.m.

2 stops12h 30m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 287

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Fri 16/10

6:05 p.m.-9:35 a.m.

2 stops12h 30m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 310

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Thu 15/10

11:13 p.m.-9:29 a.m.

1 stop7h 16m

Buffalo

Wed 31/12

12:00 a.m.-9:00 p.m.

Nonstop0h 00m

C$ 355

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/9

Showing 1-10 of 24 resultsSorted by cheapest first
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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

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 price you pay for your flight from Seattle to Buffalo may vary depending on when you book. For the best chance of a lower fare, look to book 80 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, March is the cheapest month in which you can book a flight from Seattle to Buffalo (average of C$ 541). Flying from Seattle to Buffalo in December is currently the most expensive (average of C$ 907). 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.

How much does it cost to fly round-trip from Seattle to Buffalo?

Airfare is below average for this route at the moment.

Seattle to Buffalo flights typically cost between C$ 523 and C$ 815 in October.
The cheapest round-trip price found within the last 5 days was C$ 435 on United Airlines (14 Oct-21 Oct).

Related info for your journey

  • How long is the flight from Seattle to Buffalo?

    A quick flight from Seattle to Buffalo can take about 6h 16m. Delta provides one of the quickest options available for as low as C$ 435. Airlines will cover a distance of 3404 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • 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, March is the cheapest month in which you can book a flight from Seattle to Buffalo (average of C$ 541). Flying from Seattle to Buffalo in December is currently the most expensive (average of C$ 907). 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

Travelling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Cheektowaga
Amherst
Williamsville

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Seattle to Buffalo

Seattle to Newark flights
Seattle to John F Kennedy Intl flights
Bellingham to Newark flights
Seattle to LaGuardia flights
Portland to Newark flights

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Why should you use Cheapflights to find cheap flight tickets from Seattle to Buffalo?

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