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Cheap flights from Seattle to Buffalo from C$ 264

SEA — BUF
5 Dec — 12 Dec1
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

Sat 5/127:00 a.m. -
1 stop6h 57m
Sat 12/128:17 a.m. -
1 stop8h 32m
Deal found 3/11C$ 526
Sun 6/1210:55 p.m. -
1 stop8h 48m
Sat 12/1212:06 p.m. -
1 stop9h 37m
Deal found 3/11C$ 575
Sat 5/1210:48 a.m. -
2 stops9h 46m
Sun 13/126:30 a.m. -
1 stop8h 14m
Deal found 3/11C$ 582
Sat 5/125:05 a.m. -
2 stops8h 52m
Fri 11/128:17 a.m. -
2 stops11h 05m
Deal found 3/11C$ 585
Sun 6/126:25 p.m. -
2 stops11h 00m
Sat 12/126:00 a.m. -
2 stops13h 05m
Deal found 3/11C$ 589
Sat 5/125:30 a.m. -
2 stops13h 55m
Fri 11/124:55 p.m. -
2 stops11h 25m
Deal found 3/11C$ 628
Sun 6/126:00 a.m. -
1 stop8h 36m
Sun 13/126:10 a.m. -
1 stop8h 00m
Deal found 3/11C$ 638
Sat 5/128:20 a.m. -
2 stops10h 15m
Sun 13/129:05 a.m. -
2 stops15h 10m
Deal found 3/11C$ 641
Sat 5/1212:25 p.m. -
2 stops17h 09m
Thu 10/123:20 p.m. -
1 stop10h 49m
Deal found 3/11C$ 663

Find flight deals from Seattle to Buffalo

Round-trip from

C$ 526

One-way from

C$ 264

Popular in

December

Cheapest in

March

Average price

C$ 665
United Airlines
  • United Airlines
  • 5/12-12/12
  • 2 total stops
  • 15h 29m total
  • Seattle to Buffalo
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Delta
  • Delta
  • 23/11-31/12
  • 1 total stop
  • 8h 25m total
  • Seattle to Buffalo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (C$ 110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 25 potential savings vs. average RT price).
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Average for round-trip flights in November 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.

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Route

Depart

Return

Price

Cheapest round-trip

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Thu 11/2

12:10 a.m.-10:15 a.m.

1 stop7h 05m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 264

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Wed 30/12

7:10 p.m.-9:45 a.m.

2 stops11h 35m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 271

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Thu 24/12

7:25 p.m.-9:43 a.m.

2 stops11h 18m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 304

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 29/12

7:10 p.m.-9:45 a.m.

2 stops11h 35m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 316

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Wed 23/12

8:30 p.m.-10:40 a.m.

2 stops11h 10m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 385
Quickest round-trip

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 26/12

5:50 a.m.-3:20 p.m.

1 stop6h 30m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 404

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Sat 19/12

1:30 p.m.-12:25 a.m.

1 stop7h 55m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 427

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 22/12

8:30 p.m.-10:05 a.m.

2 stops10h 35m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 434

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 24/11

8:18 p.m.-9:42 a.m.

2 stops10h 24m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 440

SeattleBuffalo

SEA Seattle/Tacoma Intl - BUF Buffalo

SEABUF

Seattle/Tacoma Intl

Tue 24/11

1:35 p.m.-11:28 p.m.

1 stop6h 53m

Buffalo

Wed 31/12

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

Nonstop0h 00m

C$ 444

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 21 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$ 540). Flying from Seattle to Buffalo in December is currently the most expensive (average of C$ 913). 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 typical for this route at the moment.

Seattle to Buffalo flights typically cost between C$ 525 and C$ 841 in December.
The cheapest round-trip price found within the last 5 days was C$ 526 on Delta (5 Dec-12 Dec).

Related info for your journey

  • How long is the flight from Seattle to Buffalo?

    A quick flight from Seattle to Buffalo can take about 7h 15m. Delta provides one of the quickest options available for as low as C$ 570. 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$ 540). Flying from Seattle to Buffalo in December is currently the most expensive (average of C$ 913). 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
Seattle to LaGuardia flights
Bellingham to Newark 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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