$283 Cheap United flights Atlanta (ATL) to Ontario (ONT)

View $283 flight on Tue, Mar 3, 2026Opens in a new window

$283 Cheap United flights Atlanta (ATL) to Ontario (ONT)

Prices were available within the past 7 days and start at $283 for one-way flights and $419 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Feb 28 - Sat, Mar 7
ATL
Atlanta
ONT
Ontario
$419 Roundtrip, found 10 hours ago
$419
Roundtrip
found 10 hours ago
Select United flight, departing Sat, Feb 28 from Atlanta to Ontario, returning Sat, Mar 7, priced at $419 found 10 hours ago

Find the cheapest month to fly from Atlanta (ATL) to Ontario (ONT)

February is typically the cheapest month to fly

From $134 - $399 per traveler.

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $192
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $192
Flights from Atlanta (ATL) to Ontario (ONT)
Origin airport
Hartsfield-Jackson Atlanta Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
Frontier Airlines
Distance
3029 km
Average flight time
3 hours 21 mins