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

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0 Children (2~11)
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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 April , May 2026

29 Apr - 14 May $ 268.00
ONT
Ontario
Frontier Airlines
2 STOPS
BUF
Buffalo
BUF
Buffalo
Frontier Airlines
2 STOPS
ONT
Ontario
Pick dates
29 Apr - 13 May $ 497.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
29 Apr - 13 May $ 497.00
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

27 Apr - 01 May $ 333.00
ONT
Ontario
Frontier Airlines
2 STOPS
BUF
Buffalo
BUF
Buffalo
Frontier Airlines
2 STOPS
ONT
Ontario
Pick dates
16 Apr - 30 Apr $ 753.00
ONT
Ontario
United Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
ONT
Ontario
Pick dates
16 Apr - 30 Apr $ 793.00
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

1:38 PM - 5:53 PM
United Airlines
1 Stops
6h 32m
ONT - BUF
$ 239
Kiwi
Pick dates
11:05 AM - 9:59 PM
United Airlines
2 Stops
33h 28m
ONT - BUF
$ 459
Kiwi
Pick dates
1:43 PM - 5:53 PM
United Airlines
1 Stops
6h 27m
ONT - BUF
$ 489
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.