Airlines with flights from Atlanta to Ontario
There are five airlines with scheduled flights between ATL and ONT. Delta is the only airline with non-stop flights from Hartsfield–Jackson Atlanta Airport to Ontario International Airport and the flight time is 4 hours and 31 minutes.
There are five airlines with scheduled flights between ATL and ONT. Delta is the only airline with non-stop flights from Hartsfield–Jackson Atlanta Airport to Ontario International Airport and the flight time is 4 hours and 31 minutes. Choose airline
Direct
Non-stop
4h 31min
Via Phoenix
5h 46min
Via Nashville
5h 50min
Via Phoenix
5h 55min
Via Houston
6h 0min
Via Denver
6h 5min
Via Austin
6h 5min
Via Las Vegas
6h 10min
Via Dallas
6h 21min
Via Dallas
6h 30min
Via Denver
6h 36min
Via Chicago
6h 40min
Via Houston
6h 51min
Via Salt Lake City
6h 53min
Via Las Vegas
6h 54min
Via Charlotte
7h 3min
Via Chicago
7h 37min
Via Dallas
7h 39min
NEW
Via San Jose
10h 45min
Starts 06/08
Via Saint Louis
7h 50min
Schedules
Non-stop with Delta Air Lines
-
Total flight time: 4 hours and 31 minutes
-
Sky Team Alliance
-
Atlanta is a Delta Air Lines hub (Largest hub).
-
18 flights per week
-
Airbus A321
ATL
Direct
ONT
W27, Jun 29 - Jul 05
Flight
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
DL665
09:15
09:15
09:15
09:15
09:15
09:15
09:15
DL779
20:17
----
----
20:17
20:17
16:59
20:17
DL2891
16:59
16:59
16:59
16:59
16:59
----
16:59
The timetable & schedule information was updated at 2026-04-21
Via Phoenix with American Airlines
-
Total flight time: 5h 46m - 7h 19m.
-
One World Alliance
-
34 flights per week
ATL
Via PHX
ONT
W27, Jun 29 - Jul 05
Flight
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
AA1777
AA2244
AA2244
07:53
07:53
07:53
07:47
07:47
07:47
07:47
AA3012
AA1238
AA1238
18:14
18:14
18:14
18:14
18:14
18:14
18:14
The timetable & schedule information was updated at 2026-04-21
Via Nashville with Southwest Airlines
-
Total flight time: 5h 50m - 9h 00m.
-
Low-cost airline
-
Atlanta is a Southwest Airlines focus city (Operating base).
-
15 flights per week
ATL
Via BNA
ONT
W27, Jun 29 - Jul 05
Flight
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
WN4564
WN855
WN855
----
14:45
14:45
----
----
----
----
The timetable & schedule information was updated at 2026-04-21
Via Phoenix with Southwest Airlines
-
Total flight time: 5h 55m - 8h 20m.
-
Low-cost airline
-
Atlanta is a Southwest Airlines focus city (Operating base).
-
53 flights per week
ATL
Via PHX
ONT
W27, Jun 29 - Jul 05
Flight
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
WN209
WN431
WN431
06:10
----
----
06:10
06:10
----
----
WN319
WN2603
WN2603
----
09:55
09:55
----
----
----
----
WN1556
WN2039
WN2039
----
----
----
----
----
15:55
----
WN224
WN3313
WN3313
----
----
----
----
----
----
21:05
The timetable & schedule information was updated at 2026-04-21
Via Houston with Southwest Airlines
-
Total flight time: 6h 00m - 7h 50m.
-
Low-cost airline
-
Atlanta is a Southwest Airlines focus city (Operating base).
-
25 flights per week
ATL
Via HOU
ONT
W27, Jun 29 - Jul 05
Flight
Mon
Jun 29
Tue
Jun 30
Wed
Jul 1
Thu
Jul 2
Fri
Jul 3
Sat
Jul 4
Sun
Jul 5
WN207
WN1967
WN1967
----
19:35
19:35
----
----
----
----
The timetable & schedule information was updated at 2026-04-21
Via Denver with United
Via Las Vegas with Frontier