Cheap flights from Seattle to Great Lakes Seaway

View AU$236 flight on Mon, 27 Oct. 2025Opens in a new window

Popular airlines from Seattle to Great Lakes Seaway

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Seattle (SEA) to Great Lakes Seaway (BUF)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$560 Return, found 1 day ago
AU$560
Return
found 1 day ago
Select American Airlines flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$560 found 1 day ago
Delta
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$563 Return, found 1 day ago
AU$563
Return
found 1 day ago
Select Delta flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$563 found 1 day ago
American Airlines
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$594 Return, found 1 day ago
AU$594
Return
found 1 day ago
Select American Airlines flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$594 found 1 day ago
American Airlines
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$601 Return, found 1 day ago
AU$601
Return
found 1 day ago
Select American Airlines flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$601 found 1 day ago
United
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$639 Return, found 1 day ago
AU$639
Return
found 1 day ago
Select United flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$639 found 1 day ago
Alaska Airlines
Mon, 22 Sep. - Wed, 1 Oct.
SEA
Seattle
BUF
Buffalo
AU$783 Return, found 1 day ago
AU$783
Return
found 1 day ago
Select Alaska Airlines flight, departing Mon, 22 Sep. from Seattle to Buffalo, returning Wed, 1 Oct., priced at AU$783 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Buffalo (BUF)

September is typically the cheapest month to fly

From AU$331 - AU$667 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.