Korean Air flights from Denver (DEN) to Atlanta (ATL).

FLIGHT SCHEDULE
Direct Codeshare Flights:
Sat 15:10 Denver (DEN) 20:17 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:07 Effective 2026-08-15 through 2026-09-05 Codeshare flight, operated by Delta Air Lines.(DL 957)
Sat,Sun 15:10 Denver (DEN) 20:17 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:07 Effective 2026-09-06 through 2026-09-12 Codeshare flight, operated by Delta Air Lines.(DL 957)
Sat 15:10 Denver (DEN) 20:17 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:07 Effective 2026-09-19 through 2026-10-03 Codeshare flight, operated by Delta Air Lines.(DL 957)
Sat 15:10 Denver (DEN) 20:11 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:01 Effective from 2026-10-10 Codeshare flight, operated by Delta Air Lines.(DL 957)
Daily 16:29 Denver (DEN) 21:26 Atlanta (ATL) S Korean Air KE 3635 Non-stop Boeing 757 (757) 2:57 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 396)
Daily 16:29 Denver (DEN) 21:31 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:02 Effective 2026-03-08 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 840)
Daily 16:40 Denver (DEN) 21:48 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:08 Effective 2026-04-13 through 2026-08-14 Codeshare flight, operated by Delta Air Lines.(DL 840)
Mon-Fri,Sun 16:40 Denver (DEN) 21:48 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:08 Effective 2026-08-16 through 2026-09-04 Codeshare flight, operated by Delta Air Lines.(DL 840)
Mon-Fri,Sun 16:40 Denver (DEN) 21:48 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:08 Effective 2026-09-07 through 2026-10-05 Codeshare flight, operated by Delta Air Lines.(DL 840)
Mon-Fri,Sun 16:40 Denver (DEN) 21:41 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:01 Effective from 2026-10-06 Codeshare flight, operated by Delta Air Lines.(DL 840)
Mon-Wed 16:43 Denver (DEN) 21:50 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321 (321) 3:07 Effective 2026-01-05 through 2026-01-07 Codeshare flight, operated by Delta Air Lines.(DL 840)
Daily 16:43 Denver (DEN) 21:50 Atlanta (ATL) S Korean Air KE 3635 Non-stop Airbus A321neo (32Q) 3:07 Effective 2026-01-08 through 2026-01-18 Codeshare flight, operated by Delta Air Lines.(DL 840)
Daily 16:43 Denver (DEN) 21:50 Atlanta (ATL) S Korean Air KE 3635 Non-stop Boeing 737-900 (739) 3:07 Effective 2026-01-19 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 840)
Tue-Fri 00:30 Denver (DEN) 05:27 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:57 Effective 2026-01-20 through 2026-01-30 Codeshare flight, operated by Delta Air Lines.(DL 302)
Mon,Sat 00:30 Denver (DEN) 05:26 Atlanta (ATL) S Korean Air KE 3640 Non-stop Boeing 737-900 (739) 2:56 Effective 2026-01-24 through 2026-01-26 Codeshare flight, operated by Delta Air Lines.(DL 302)
Mon-Sat 00:30 Denver (DEN) 05:27 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:57 Effective 2026-01-31 through 2026-02-07 Codeshare flight, operated by Delta Air Lines.(DL 302)
Tue,Wed 00:30 Denver (DEN) 05:27 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:57 Effective 2026-02-10 through 2026-02-11 Codeshare flight, operated by Delta Air Lines.(DL 302)
Mon-Sat 00:55 Denver (DEN) 05:51 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:56 Effective 2026-03-09 through 2026-04-11 Codeshare flight, operated by Delta Air Lines.(DL 302)
Tue-Sat 00:59 Denver (DEN) 05:55 Atlanta (ATL) S Korean Air KE 3640 Non-stop Boeing 737-900 (739) 2:56 Effective 2026-02-12 through 2026-02-21 Codeshare flight, operated by Delta Air Lines.(DL 1574)
Mon-Sat 00:59 Denver (DEN) 05:55 Atlanta (ATL) S Korean Air KE 3640 Non-stop Boeing 737-900 (739) 2:56 Effective 2026-02-23 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 1574)
Mon-Sat 00:59 Denver (DEN) 05:59 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 3:00 Effective 2026-04-13 through 2026-05-23 Codeshare flight, operated by Delta Air Lines.(DL 302)
Mon-Sat 00:59 Denver (DEN) 05:59 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 3:00 Effective 2026-05-26 through 2026-06-09 Codeshare flight, operated by Delta Air Lines.(DL 302)
Mon,Tue,Fri,Sat 00:59 Denver (DEN) 05:59 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 3:00 Effective 2026-06-12 through 2026-08-08 Codeshare flight, operated by Delta Air Lines.(DL 302)
Daily 00:59 Denver (DEN) 05:57 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:58 Effective from 2026-09-10 Codeshare flight, operated by Delta Air Lines.(DL 302)
Sun 06:00 Denver (DEN) 10:54 Atlanta (ATL) S Korean Air KE 3640 Non-stop Airbus A321 (321) 2:54 Effective 2026-03-29 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 341)
Daily 05:45 Denver (DEN) 10:40 Atlanta (ATL) S Korean Air KE 3641 Non-stop Boeing 757 (757) 2:55 Valid until 2026-01-04 Codeshare flight, operated by Delta Air Lines.(DL 341)
Mon,Thu-Sun 06:00 Denver (DEN) 10:58 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 2:58 Effective 2026-01-05 through 2026-01-12 Codeshare flight, operated by Delta Air Lines.(DL 341)
Tue,Wed 06:00 Denver (DEN) 10:58 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A320 (320) 2:58 Effective 2026-01-06 through 2026-01-07 Codeshare flight, operated by Delta Air Lines.(DL 341)
Tue-Sat 06:00 Denver (DEN) 10:58 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 2:58 Effective 2026-01-13 through 2026-01-17 Codeshare flight, operated by Delta Air Lines.(DL 341)
Sun 06:00 Denver (DEN) 10:53 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 2:53 Operates only on 2026-01-18 Codeshare flight, operated by Delta Air Lines.(DL 341)
Daily 06:00 Denver (DEN) 10:57 Atlanta (ATL) S Korean Air KE 3641 Non-stop Boeing 737-900 (739) 2:57 Effective 2026-01-19 through 2026-03-07 Codeshare flight, operated by Delta Air Lines.(DL 341)
Daily 07:05 Denver (DEN) 11:58 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 2:53 Effective 2026-03-08 through 2026-04-12 Codeshare flight, operated by Delta Air Lines.(DL 431)
Daily 07:05 Denver (DEN) 12:06 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 3:01 Effective 2026-04-13 through 2026-08-09 Codeshare flight, operated by Delta Air Lines.(DL 431)
Daily 07:05 Denver (DEN) 12:05 Atlanta (ATL) S Korean Air KE 3641 Non-stop Airbus A321 (321) 3:00 Effective from 2026-08-10 Codeshare flight, operated by Delta Air Lines.(DL 431)

A domestic route departing from the Denver airport (DEN) and arriving at Atlanta airport (ATL).
The flight distance is 1196 miles, or 1925 km.
The timezone of the departure airport is UTC-7 , 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 2:53 and 3:08.

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FLIGHT SCHEDULE

Direct Codeshare Flights:

Korean Air KE3635

15:10

Denver (DEN)

20:17

Atlanta (ATL) S

Effective 2026-08-15 through 2026-09-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 957)

Duration: 3:07, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

15:10

Denver (DEN)

20:17

Atlanta (ATL) S

Effective 2026-09-06 through 2026-09-12

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 957)

Duration: 3:07, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

15:10

Denver (DEN)

20:17

Atlanta (ATL) S

Effective 2026-09-19 through 2026-10-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 957)

Duration: 3:07, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

15:10

Denver (DEN)

20:11

Atlanta (ATL) S

Effective from 2026-10-10

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 957)

Duration: 3:01, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:29

Denver (DEN)

21:26

Atlanta (ATL) S

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 396)

Duration: 2:57, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

Korean Air KE3635

16:29

Denver (DEN)

21:31

Atlanta (ATL) S

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:02, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:40

Denver (DEN)

21:48

Atlanta (ATL) S

Effective 2026-04-13 through 2026-08-14

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:08, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:40

Denver (DEN)

21:48

Atlanta (ATL) S

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:08, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:40

Denver (DEN)

21:48

Atlanta (ATL) S

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:08, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:40

Denver (DEN)

21:41

Atlanta (ATL) S

Effective from 2026-10-06

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:01, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:43

Denver (DEN)

21:50

Atlanta (ATL) S

Effective 2026-01-05 through 2026-01-07

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:07, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3635

16:43

Denver (DEN)

21:50

Atlanta (ATL) S

Effective 2026-01-08 through 2026-01-18

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:07, non-stop
Airbus A321neo (32Q)

Direct Codeshare Flights:

Korean Air KE3635

16:43

Denver (DEN)

21:50

Atlanta (ATL) S

Effective 2026-01-19 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 840)

Duration: 3:07, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Korean Air KE3640

00:30

Denver (DEN)

05:27

Atlanta (ATL) S

Effective 2026-01-20 through 2026-01-30

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:57, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:30

Denver (DEN)

05:26

Atlanta (ATL) S

Effective 2026-01-24 through 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:56, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Korean Air KE3640

00:30

Denver (DEN)

05:27

Atlanta (ATL) S

Effective 2026-01-31 through 2026-02-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:57, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:30

Denver (DEN)

05:27

Atlanta (ATL) S

Effective 2026-02-10 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:57, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:55

Denver (DEN)

05:51

Atlanta (ATL) S

Effective 2026-03-09 through 2026-04-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:56, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:55

Atlanta (ATL) S

Effective 2026-02-12 through 2026-02-21

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1574)

Duration: 2:56, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:55

Atlanta (ATL) S

Effective 2026-02-23 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 1574)

Duration: 2:56, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:59

Atlanta (ATL) S

Effective 2026-04-13 through 2026-05-23

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 3:00, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:59

Atlanta (ATL) S

Effective 2026-05-26 through 2026-06-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 3:00, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:59

Atlanta (ATL) S

Effective 2026-06-12 through 2026-08-08

Mon

Tue

Wed
-

Thu
-

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 3:00, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

00:59

Denver (DEN)

05:57

Atlanta (ATL) S

Effective from 2026-09-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 302)

Duration: 2:58, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3640

06:00

Denver (DEN)

10:54

Atlanta (ATL) S

Effective 2026-03-29 through 2026-04-12

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:54, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

05:45

Denver (DEN)

10:40

Atlanta (ATL) S

Valid until 2026-01-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:55, non-stop
Boeing 757 (757)

Direct Codeshare Flights:

Korean Air KE3641

06:00

Denver (DEN)

10:58

Atlanta (ATL) S

Effective 2026-01-05 through 2026-01-12

Mon

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:58, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

06:00

Denver (DEN)

10:58

Atlanta (ATL) S

Effective 2026-01-06 through 2026-01-07

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:58, non-stop
Airbus A320 (320)

Direct Codeshare Flights:

Korean Air KE3641

06:00

Denver (DEN)

10:58

Atlanta (ATL) S

Effective 2026-01-13 through 2026-01-17

Mon
-

Tue

Wed

Thu

Fri

Sat

Sun
-

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:58, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

06:00

Denver (DEN)

10:53

Atlanta (ATL) S

Operates only on 2026-01-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:53, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

06:00

Denver (DEN)

10:57

Atlanta (ATL) S

Effective 2026-01-19 through 2026-03-07

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 341)

Duration: 2:57, non-stop
Boeing 737-900 (739)

Direct Codeshare Flights:

Korean Air KE3641

07:05

Denver (DEN)

11:58

Atlanta (ATL) S

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 431)

Duration: 2:53, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

07:05

Denver (DEN)

12:06

Atlanta (ATL) S

Effective 2026-04-13 through 2026-08-09

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 431)

Duration: 3:01, non-stop
Airbus A321 (321)

Direct Codeshare Flights:

Korean Air KE3641

07:05

Denver (DEN)

12:05

Atlanta (ATL) S

Effective from 2026-08-10

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Codeshare flight, operated by Delta Air Lines. (DL 431)

Duration: 3:00, non-stop
Airbus A321 (321)

A domestic route departing from the Denver airport (DEN) and arriving at Atlanta airport (ATL).
The flight distance is 1196 miles, or 1925 km.
The timezone of the departure airport is UTC-7 , 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 2:53 and 3:08.

All DEN-ATL flights

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