Cheap flights from Chicago to Great Lakes Seaway

View AU$137 flight on Thu, 18 Sep. 2025Opens in a new window

Popular airlines from Chicago to Great Lakes Seaway

  • Delta

    Delta

  • American Airlines

    American Airlines

  • United

    United

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Cheap Flights from Chicago (CHI) 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
Tue, 9 Sep. - Tue, 16 Sep.
ORD
Chicago
BUF
Buffalo
AU$270 Return, found 1 day ago
AU$270
Return
found 1 day ago
Select American Airlines flight, departing Tue, 9 Sep. from Chicago to Buffalo, returning Tue, 16 Sep., priced at AU$270 found 1 day ago
Delta
Tue, 9 Sep. - Tue, 16 Sep.
MDW
Chicago
BUF
Buffalo
AU$299 Return, found 1 day ago
AU$299
Return
found 1 day ago
Select Delta flight, departing Tue, 9 Sep. from Chicago to Buffalo, returning Tue, 16 Sep., priced at AU$299 found 1 day ago
Delta
Tue, 9 Sep. - Tue, 16 Sep.
ORD
Chicago
BUF
Buffalo
AU$299 Return, found 1 day ago
AU$299
Return
found 1 day ago
Select Delta flight, departing Tue, 9 Sep. from Chicago to Buffalo, returning Tue, 16 Sep., priced at AU$299 found 1 day ago
Delta
Tue, 19 Aug. - Thu, 4 Sep.
ORD
Chicago
BUF
Buffalo
AU$302 Return, found 4 days ago
AU$302
Return
found 4 days ago
Select Delta flight, departing Tue, 19 Aug. from Chicago to Buffalo, returning Thu, 4 Sep., priced at AU$302 found 4 days ago
United
Tue, 9 Sep. - Tue, 16 Sep.
ORD
Chicago
BUF
Buffalo
AU$360 Return, found 1 day ago
AU$360
Return
found 1 day ago
Select United flight, departing Tue, 9 Sep. from Chicago to Buffalo, returning Tue, 16 Sep., priced at AU$360 found 1 day ago
JetBlue Airways
Wed, 3 Sep. - Mon, 8 Sep.
ORD
Chicago
BUF
Buffalo
AU$436 Return, found 4 days ago
AU$436
Return
found 4 days ago
Select JetBlue Airways flight, departing Wed, 3 Sep. from Chicago to Buffalo, returning Mon, 8 Sep., priced at AU$436 found 4 days ago

Find the cheapest month to fly from Chicago (CHI) to Buffalo (BUF)

August is typically the cheapest month to fly

From AU$170 - AU$566 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.