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Get United's best fares today on flights from Atlanta to Ontario from *

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Low fare calendar for flights from Atlanta (ATL) to Ontario (ONT)

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from
$1,517*
Viewed:16 hours ago
Economy
Return:06/10/20
28
No available fares
29
No available fares
30
from
$1,167*
Viewed:34 minutes ago
Economy
Return:06/06/20
31
from
$1,372*
Viewed:34 minutes ago
Economy
Return:06/14/20
from
$1,073*
Viewed:34 minutes ago
Economy
Return:06/15/20
from
$1,135*
Viewed:34 minutes ago
Economy
Return:06/10/20
from
$1,446*
Viewed:34 minutes ago
Economy
Return:06/13/20
Lowest PriceToday
*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Looking for additional flights from Atlanta to Ontario?

FromToDatesFare TypePrice

Atlanta (ATL)

Ontario (ONT)

Depart: 07/07/20

Return: 07/14/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/08/20

Return: 07/15/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/14/20

Return: 07/21/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/15/20

Return: 07/22/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/21/20

Return: 07/28/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/22/20

Return: 07/29/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/07/20

Return: 07/21/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/08/20

Return: 07/22/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/14/20

Return: 07/28/20

Roundtrip
from
$266*
Viewed:15hoursago

Atlanta (ATL)

Ontario (ONT)

Depart: 07/15/20

Return: 07/29/20

Roundtrip
from
$266*
Viewed:15hoursago

*Prices have been available for round trips within the last 48 hours and may not be currently available. Fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply.

Weather in Ontario

Wednesday sky is clear
86°F 05/27/20
Thursday sky is clear
86°F 05/28/20
Friday sky is clear
83°F 05/29/20
Saturday broken clouds
74°F 05/30/20
Sunday broken clouds
75°F 05/31/20
Monday overcast clouds
73°F 06/01/20
Tuesday light rain
69°F 06/02/20
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