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Cheap flights from Ontario (ONT) to Buffalo (BUF)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)

How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)
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How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)
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How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)
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Cheap flights from Ontario to Buffalo in September , October 2026

29 Sep - 21 Oct $ 302.00
ONT
Ontario
Frontier Airlines
2 STOPS
BUF
Buffalo
BUF
Buffalo
Frontier Airlines
2 STOPS
ONT
Ontario
Pick dates
18 Sep - 02 Oct $ 1,040.00
ONT
Ontario
JetBlue Airways
1 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
Pick dates
18 Sep - 01 Oct $ 1,124.00
ONT
Ontario
JetBlue Airways
1 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Buffalo

29 Sep - 30 Sep $ 533.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
17 Sep - 30 Sep $ 752.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
2 STOPS
ONT
Ontario
Pick dates
17 Sep - 30 Sep $ 808.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates

One-way flights to Buffalo from Ontario

5:44 PM - 10:48 AM
Frontier Airlines
2 Stops
16h 11m
ONT - BUF
$ 173
Kiwi
Pick dates
1:56 PM - 6:29 AM
United Airlines
2 Stops
16h 12m
ONT - BUF
$ 482
Kiwi
Pick dates
1:18 PM - 5:25 PM
United Airlines
1 Stops
6h 19m
ONT - BUF
$ 504
Kiwi
Pick dates

How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)

Related info for your journey
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How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Ontario (ONT) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.