Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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.
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.
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.

Cheap flights from Ontario to Atlanta in August , September 2026

31 Aug - 12 Sep $ 356.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
23 Aug - 10 Sep $ 356.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
21 Aug - 10 Sep $ 440.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates

Last minute flights from Ontario to Atlanta

21 Aug - 31 Aug $ 440.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
22 Aug - 31 Aug $ 440.00
ONT
Ontario
Frontier Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
Frontier Airlines
1 STOPS
ONT
Ontario
Pick dates
27 Aug - 31 Aug $ 778.00
ONT
Ontario
United Airlines
1 STOPS
ATL
Atlanta
ATL
Atlanta
United Airlines
1 STOPS
ONT
Ontario
Pick dates

One-way flights to Atlanta from Ontario

6:00 AM - 10:43 AM
Frontier Airlines
1 Stops
6h 49m
ONT - ATL
$ 220
Kiwi
Pick dates
6:00 AM - 10:43 AM
Frontier Airlines
1 Stops
6h 49m
ONT - ATL
$ 220
Kiwi
Pick dates
6:00 AM - 10:43 AM
Frontier Airlines
1 Stops
6h 49m
ONT - ATL
$ 220
Kiwi
Pick dates

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

Related info for your journey
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 Atlanta (ATL)
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 Atlanta (ATL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.