Delta Air Lines flights from Ontario, Los Angeles (ONT) to Atlanta (ATL).

FLIGHT SCHEDULE
Direct Flights:
Sun 11:05 Ontario, Los Angeles (ONT) 2 18:15 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:10 Operates only on 2026-01-04
Mon,Tue,Fri,Sat 11:10 Ontario, Los Angeles (ONT) 2 18:20 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:10 Valid until 2026-01-03
Wed,Thu,Sat 11:15 Ontario, Los Angeles (ONT) 2 18:25 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:10 Valid until 2026-01-01
Daily 12:00 Ontario, Los Angeles (ONT) 2 19:20 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:20 Effective 2026-04-13 through 2026-07-06
Daily 12:00 Ontario, Los Angeles (ONT) 2 19:30 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:30 Effective 2026-07-07 through 2026-10-05
Daily 12:00 Ontario, Los Angeles (ONT) 2 19:14 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:14 Effective from 2026-10-06
Daily 12:41 Ontario, Los Angeles (ONT) 2 19:50 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:09 Effective 2026-01-05 through 2026-01-18
Mon,Sun 12:41 Ontario, Los Angeles (ONT) 2 19:49 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:08 Effective 2026-01-19 through 2026-01-26
Tue-Sat 12:41 Ontario, Los Angeles (ONT) 2 19:50 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:09 Effective 2026-01-20 through 2026-01-31
Daily 12:41 Ontario, Los Angeles (ONT) 2 19:50 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:09 Effective 2026-02-01 through 2026-02-11
Daily 12:45 Ontario, Los Angeles (ONT) 2 19:49 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:04 Effective 2026-03-08 through 2026-04-12
Daily 13:15 Ontario, Los Angeles (ONT) 2 20:30 Atlanta (ATL) S Delta Air Lines DL 665 Non-stop Airbus A321 (321) 4:15 Effective 2026-02-12 through 2026-03-07
Daily 07:00 Ontario, Los Angeles (ONT) 2 14:18 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:18 Effective 2026-04-13 through 2026-07-06
Daily 07:00 Ontario, Los Angeles (ONT) 2 14:24 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:24 Effective 2026-07-07 through 2026-10-05
Daily 07:00 Ontario, Los Angeles (ONT) 2 14:13 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:13 Effective from 2026-10-06
Daily 07:05 Ontario, Los Angeles (ONT) 2 14:15 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:10 Valid until 2026-01-04
Daily 22:20 Ontario, Los Angeles (ONT) 2 05:28 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:08 Effective 2026-02-12 through 2026-03-06 The flight arrives 1 day after departure.
Sat 22:20 Ontario, Los Angeles (ONT) 2 06:28 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:08 Operates only on 2026-03-07 The flight arrives 1 day after departure.
Daily 22:30 Ontario, Los Angeles (ONT) 2 05:35 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:05 Effective 2026-01-05 through 2026-02-11 The flight arrives 1 day after departure.
Daily 22:30 Ontario, Los Angeles (ONT) 2 05:34 Atlanta (ATL) S Delta Air Lines DL 761 Non-stop Airbus A321 (321) 4:04 Effective 2026-03-08 through 2026-04-12 The flight arrives 1 day after departure.
Mon,Tue,Fri-Sun 22:29 Ontario, Los Angeles (ONT) 2 05:39 Atlanta (ATL) S Delta Air Lines DL 828 Non-stop Airbus A321 (321) 4:10 Valid until 2026-01-04 The flight arrives 1 day after departure.
Daily 22:59 Ontario, Los Angeles (ONT) 2 06:13 Atlanta (ATL) S Delta Air Lines DL 2891 Non-stop Airbus A321 (321) 4:14 Effective 2026-04-13 through 2026-07-06 The flight arrives 1 day after departure.
Daily 22:59 Ontario, Los Angeles (ONT) 2 06:19 Atlanta (ATL) S Delta Air Lines DL 2891 Non-stop Airbus A321 (321) 4:20 Effective 2026-07-07 through 2026-08-14 The flight arrives 1 day after departure.
Mon-Fri,Sun 22:59 Ontario, Los Angeles (ONT) 2 06:19 Atlanta (ATL) S Delta Air Lines DL 2891 Non-stop Airbus A321 (321) 4:20 Effective 2026-08-16 through 2026-09-04 The flight arrives 1 day after departure.
Mon-Fri,Sun 22:59 Ontario, Los Angeles (ONT) 2 06:19 Atlanta (ATL) S Delta Air Lines DL 2891 Non-stop Airbus A321 (321) 4:20 Effective 2026-09-07 through 2026-10-05 The flight arrives 1 day after departure.
Mon-Fri,Sun 22:59 Ontario, Los Angeles (ONT) 2 06:08 Atlanta (ATL) S Delta Air Lines DL 2891 Non-stop Airbus A321 (321) 4:09 Effective from 2026-10-06 The flight arrives 1 day after departure.

A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Atlanta airport (ATL).
The flight distance is 1895 miles, or 3049 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 4:04 and 4:30.

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FLIGHT SCHEDULE

Direct Flights:

Delta Air Lines DL665

11:05

Ontario, Los Angeles (ONT) 2

18:15

Atlanta (ATL) S

Operates only on 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:10, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

11:10

Ontario, Los Angeles (ONT) 2

18:20

Atlanta (ATL) S

Valid until 2026-01-03

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Duration: 4:10, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

11:15

Ontario, Los Angeles (ONT) 2

18:25

Atlanta (ATL) S

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat

Sun
-

Duration: 4:10, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:00

Ontario, Los Angeles (ONT) 2

19:20

Atlanta (ATL) S

Effective 2026-04-13 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:20, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:00

Ontario, Los Angeles (ONT) 2

19:30

Atlanta (ATL) S

Effective 2026-07-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:30, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:00

Ontario, Los Angeles (ONT) 2

19:14

Atlanta (ATL) S

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:14, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:41

Ontario, Los Angeles (ONT) 2

19:50

Atlanta (ATL) S

Effective 2026-01-05 through 2026-01-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:09, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:41

Ontario, Los Angeles (ONT) 2

19:49

Atlanta (ATL) S

Effective 2026-01-19 through 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:08, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:41

Ontario, Los Angeles (ONT) 2

19:50

Atlanta (ATL) S

Effective 2026-01-20 through 2026-01-31

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun
-

Duration: 4:09, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:41

Ontario, Los Angeles (ONT) 2

19:50

Atlanta (ATL) S

Effective 2026-02-01 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:09, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

12:45

Ontario, Los Angeles (ONT) 2

19:49

Atlanta (ATL) S

Effective 2026-03-08 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:04, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL665

13:15

Ontario, Los Angeles (ONT) 2

20:30

Atlanta (ATL) S

Effective 2026-02-12 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:15, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL761

07:00

Ontario, Los Angeles (ONT) 2

14:18

Atlanta (ATL) S

Effective 2026-04-13 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:18, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL761

07:00

Ontario, Los Angeles (ONT) 2

14:24

Atlanta (ATL) S

Effective 2026-07-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:24, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL761

07:00

Ontario, Los Angeles (ONT) 2

14:13

Atlanta (ATL) S

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:13, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL761

07:05

Ontario, Los Angeles (ONT) 2

14:15

Atlanta (ATL) S

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:10, non-stop
Airbus A321 (321)

Direct Flights:

Delta Air Lines DL761

22:20

Ontario, Los Angeles (ONT) 2

05:28(+1)

Atlanta (ATL) S

Effective 2026-02-12 through 2026-03-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:08, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL761

22:20

Ontario, Los Angeles (ONT) 2

06:28(+1)

Atlanta (ATL) S

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:08, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL761

22:30

Ontario, Los Angeles (ONT) 2

05:35(+1)

Atlanta (ATL) S

Effective 2026-01-05 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:05, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL761

22:30

Ontario, Los Angeles (ONT) 2

05:34(+1)

Atlanta (ATL) S

Effective 2026-03-08 through 2026-04-12

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:04, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL828

22:29

Ontario, Los Angeles (ONT) 2

05:39(+1)

Atlanta (ATL) S

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun

Duration: 4:10, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL2891

22:59

Ontario, Los Angeles (ONT) 2

06:13(+1)

Atlanta (ATL) S

Effective 2026-04-13 through 2026-07-06

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:14, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL2891

22:59

Ontario, Los Angeles (ONT) 2

06:19(+1)

Atlanta (ATL) S

Effective 2026-07-07 through 2026-08-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:20, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL2891

22:59

Ontario, Los Angeles (ONT) 2

06:19(+1)

Atlanta (ATL) S

Effective 2026-08-16 through 2026-09-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:20, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL2891

22:59

Ontario, Los Angeles (ONT) 2

06:19(+1)

Atlanta (ATL) S

Effective 2026-09-07 through 2026-10-05

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:20, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

Direct Flights:

Delta Air Lines DL2891

22:59

Ontario, Los Angeles (ONT) 2

06:08(+1)

Atlanta (ATL) S

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 4:09, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Atlanta airport (ATL).
The flight distance is 1895 miles, or 3049 km.
The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
For direct flights, the flight time varies between 4:04 and 4:30.

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