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Cheap flights from Ontario (ONT) to Atlanta (ATL)

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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)

How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)
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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)
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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)
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Cheap flights from Ontario to Atlanta in December 2025 , January 2026

25 Dec - 08 Jan $ 213.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
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25 Dec - 27 Jan $ 216.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
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26 Dec - 09 Jan $ 427.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
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Last minute flights from Ontario to Atlanta

25 Dec - 01 Jan $ 319.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
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25 Dec - 01 Jan $ 341.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
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24 Dec - 31 Dec $ 1,029.00
ONT
Ontario
United Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
United Airlines
1 STOPS
ONT
Ontario
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One-way flights to Atlanta from Ontario

6:00 AM - 6:05 AM
Frontier Airlines
1 Stops
28h 2m
ONT - ATL
$ 122
Kiwi
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6:07 PM - 10:31 PM
Frontier Airlines
1 Stops
8h 23m
ONT - ATL
$ 142
Kiwi
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8:04 AM - 2:00 PM
Frontier Airlines
1 Stops
6h 14m
ONT - ATL
$ 251
Kiwi
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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)

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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)
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How to find the cheapest flight from Ontario (ONT) to Atlanta (ATL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.