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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 October , November 2026

20 Oct - 24 Nov $ 626.00
ONT
Ontario
Frontier Airlines
2 STOPS
BUF
Buffalo
BUF
Buffalo
Frontier Airlines
2 STOPS
ONT
Ontario
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29 Oct - 09 Nov $ 811.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
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31 Oct - 09 Nov $ 814.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Buffalo

24 Oct - 31 Oct $ 1,047.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
27 Oct - 31 Oct $ 1,067.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
29 Oct - 31 Oct $ 1,071.00
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

6:59 AM - 6:59 AM
United Airlines
0 Stops
7h 3m
ONT - BUF
$ 523
Kiwi
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6:59 AM - 2:18 PM
United Airlines
1 Stops
7h 3m
ONT - BUF
$ 525
Kiwi
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1:32 PM - 5:25 PM
United Airlines
1 Stops
6h 1m
ONT - BUF
$ 618
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.