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

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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 July , August 2026

29 Jul - 29 Aug $ 598.00
ONT
Ontario
JetBlue Airways
2 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
Pick dates
30 Jul - 10 Aug $ 953.00
ONT
Ontario
JetBlue Airways
1 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
Pick dates
30 Jul - 02 Aug $ 1,215.00
ONT
Ontario
JetBlue Airways
1 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Buffalo

29 Jul - 31 Jul $ 894.00
ONT
Ontario
JetBlue Airways
2 STOPS
BUF
Buffalo
BUF
Buffalo
JetBlue Airways
1 STOPS
ONT
Ontario
Pick dates
29 Jul - 31 Jul $ 1,072.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
28 Jul - 31 Jul $ 1,072.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
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One-way flights to Buffalo from Ontario

3:40 PM - 8:20 AM
Frontier Airlines
2 Stops
15h 49m
ONT - BUF
$ 376
Kiwi
Pick dates
1:18 PM - 5:40 PM
United Airlines
1 Stops
6h 40m
ONT - BUF
$ 504
Kiwi
Pick dates
1:18 PM - 5:33 PM
United Airlines
1 Stops
6h 33m
ONT - BUF
$ 569
Kiwi
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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.