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Direct flights from Atlanta to Ontario

Airlines Schedules

ATL - ONT route map All flights from ATL to ONT non-stop. There are direct flights from Hartsfield–Jackson Atlanta International Airport (ATL), Georgia, USA to Ontario International Airport (ONT), California, USA with Delta Air Lines. 19 weekly departures are currently scheduled on this route. Departure times range from 08:10 to 21:55 depending on the schedule period. The flight distance is 1906 miles (3067 km). Flight time ranges from 4 hours and 22 minutes to 4 hours and 50 minutes.

ATL
Hartsfield–Jackson Atlanta Airport
USAAtlanta , USA
ONT
Ontario Airport
USAOntario , USA
ATL
Hartsfield–Jackson Atlanta Airport
USAAtlanta , USA
Ontario Airport
USAOntario , USA
ONT
Flight time 4h 22min to 4h 50min
Updated Sep 28, 2026
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Airlines with non-stop routes:

Delta Air Lines SkyTeam

Departure times vary between 08:10 and 21:55 • From Terminal S
S
M
T
W
T
F
S
Sun
Mon
Tue
Wed
Thu
Fri
Sat
19 flights/week
19 flights/week
Weekday-labels: HAS FLIGHTS UPCOMING NO FLIGHTS
View all flight dates
Flight schedule from Atlanta to Ontario with Delta Air Lines

This is a weekly direct flight schedule for Delta Air Lines. Use the arrows or click on the date to change week. Click on any flight departure time to show more information and check availability.

 
Flight
Mon
Oct 26
Tue
Oct 27
Wed
Oct 28
Thu
Oct 29
Fri
Oct 30
Sat
Oct 31
Sun
Nov 1
DL665
09:30
09:30
09:30
09:30
09:30
09:30
09:30
DL2891
16:51
----
----
----
----
17:59
17:59
DL779
20:20
18:54
18:54
18:54
18:54
----
----

The timetable & schedule information was updated at 2026-09-28

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Atlanta to Ontario scheduled departures

Select a date to see every published non-stop departure between ATL and ONT.

Saturday
Sat
Oct 24
2 flights(2)
Sunday
Sun
Oct 25
3 flights(3)
Monday
Mon
Oct 26
3 flights(3)
Tuesday
Tue
Oct 27
2 flights(2)
Wednesday
Wed
Oct 28
2 flights(2)
Thursday
Thu
Oct 29
2 flights(2)
Friday
Fri
Oct 30
2 flights(2)
Time
Airline
Flight
09:30
Delta Air Lines Delta Air Lines
DL665
17:59
Delta Air Lines Delta Air Lines
DL2891
09:30
Delta Air Lines Delta Air Lines
DL665
16:51
Delta Air Lines Delta Air Lines
DL2891
20:20
Delta Air Lines Delta Air Lines
DL779
09:30
Delta Air Lines Delta Air Lines
DL665
16:51
Delta Air Lines Delta Air Lines
DL2891
20:20
Delta Air Lines Delta Air Lines
DL779
09:30
Delta Air Lines Delta Air Lines
DL665
18:54
Delta Air Lines Delta Air Lines
DL779
09:30
Delta Air Lines Delta Air Lines
DL665
18:54
Delta Air Lines Delta Air Lines
DL779
09:30
Delta Air Lines Delta Air Lines
DL665
18:54
Delta Air Lines Delta Air Lines
DL779
09:30
Delta Air Lines Delta Air Lines
DL665
18:54
Delta Air Lines Delta Air Lines
DL779
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ATL-ONT flight route
Route map from Atlanta, ATL to Ontario, ONT. The distance is 1906 miles or 3067 km.
Atlanta - Ontario direct flight map
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ATL - ONT route facts

  • Distance
    1906 miles (3067 km)
  • Flight time
    4 hours and 22 minutes to 4 hours and 50 minutes
  • Airline
    Delta Delta
  • Airline alliances
    SkyTeam
  • Cabins
    Economy
  • Hub airports
    ATL (Largest hub.)
  • Departure terminals
    Terminal S
  • Arrival terminals
    Terminal 2
  • Aircraft
    Airbus A321

Route FAQ

Delta Air Lines operates non-stop flights from ATL to ONT with 19 weekly departures.

Scheduled flight time from ATL to ONT ranges from 4 hours and 22 minutes to 4 hours and 50 minutes. The route covers 1906 miles (3067 km).

19 weekly departures are currently scheduled on this route, with published departure times ranging from 08:10 to 21:55 depending on the schedule period.

Departure terminal: Terminal S. Arrival terminal: Terminal 2.

Economy are currently scheduled on non-stop flights for this route.
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