United Airlines flights from Atlanta (ATL) to Denver (DEN).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu 13:20 Atlanta (ATL) N 14:37 Denver (DEN)
United Airlines UA 221 Non-stop Airbus A320 (320) 3:17 Operates only on 2025-05-22
Daily 13:20 Atlanta (ATL) N 14:37 Denver (DEN)
United Airlines UA 221 Non-stop Airbus A319 (319) 3:17 Effective 2025-05-23 through 2025-06-26
Fri,Sat 13:20 Atlanta (ATL) N 14:37 Denver (DEN)
United Airlines UA 221 Non-stop Boeing 737-800 (738) 3:17 Effective 2025-06-27 through 2025-08-16
Mon-Thu,Sun 13:20 Atlanta (ATL) N 14:37 Denver (DEN)
United Airlines UA 221 Non-stop Airbus A319 (319) 3:17 Effective 2025-06-29 through 2025-08-18
Mon-Fri,Sun 16:16 Atlanta (ATL) N 17:55 Denver (DEN)
United Airlines UA 235 Non-stop Airbus A320 (320) 3:39 Effective 2025-06-26 through 2025-08-18
Sat 16:16 Atlanta (ATL) N 17:55 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-900 (739) 3:39 Effective 2025-06-28 through 2025-08-16
Daily 16:23 Atlanta (ATL) N 18:00 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-800 (738) 3:37 Effective 2025-05-22 through 2025-05-29
Fri 16:23 Atlanta (ATL) N 18:00 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-900 (739) 3:37 Operates only on 2025-05-30
Daily 16:23 Atlanta (ATL) N 18:00 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-800 (738) 3:37 Effective 2025-05-31 through 2025-06-25
Daily 16:31 Atlanta (ATL) N 18:03 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-800 (738) 3:32 Valid until 2025-05-21
Daily 16:35 Atlanta (ATL) N 18:05 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-800 (738) 3:30 Effective 2025-08-19 through 2025-09-24
Daily 16:35 Atlanta (ATL) N 18:05 Denver (DEN)
United Airlines UA 235 Non-stop Airbus A320 (320) 3:30 Effective from 2025-10-26
Daily 16:37 Atlanta (ATL) N 17:56 Denver (DEN)
United Airlines UA 235 Non-stop Boeing 737-900 (739) 3:19 Effective 2025-09-25 through 2025-10-25
Daily 07:00 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A320 (320) 3:29 Effective 2025-10-26 through 2025-12-01
Daily 07:00 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A320 (320) 3:29 Effective from 2026-01-07
Thu 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A320 (320) 3:14 Operates only on 2025-05-22
Thu-Sat 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737 MAX 9 (7M9) 3:14 Effective 2025-05-23 through 2025-05-31
Mon,Thu-Sat 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737 MAX 9 (7M9) 3:14 Effective 2025-06-02 through 2025-06-27
Sat 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737-900 (739) 3:14 Operates only on 2025-06-28
Mon,Thu,Fri 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737 MAX 9 (7M9) 3:14 Effective 2025-06-30 through 2025-08-18
Sat 07:15 Atlanta (ATL) N 08:29 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737-900 (739) 3:14 Effective 2025-07-12 through 2025-08-16
Mon,Thu,Fri 07:30 Atlanta (ATL) N 09:00 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A319 (319) 3:30 Valid until 2025-05-19
Daily 08:40 Atlanta (ATL) N 10:09 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A319 (319) 3:29 Effective 2025-08-19 through 2025-09-24
Daily 08:40 Atlanta (ATL) N 10:09 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A320 (320) 3:29 Effective 2025-12-02 through 2026-01-06
Tue,Wed,Sun 08:45 Atlanta (ATL) N 10:15 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A319 (319) 3:30 Effective 2025-05-04 through 2025-05-21
Sat 08:51 Atlanta (ATL) N 10:20 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A319 (319) 3:29 Effective 2025-05-03 through 2025-05-17
Tue 09:00 Atlanta (ATL) N 10:16 Denver (DEN)
United Airlines UA 340 Non-stop Boeing 737 MAX 9 (7M9) 3:16 Effective 2025-05-27 through 2025-08-12
Daily 09:00 Atlanta (ATL) N 10:19 Denver (DEN)
United Airlines UA 340 Non-stop Airbus A320 (320) 3:19 Effective 2025-09-25 through 2025-10-25
Daily 11:08 Atlanta (ATL) N 12:45 Denver (DEN)
United Airlines UA 1327 Non-stop Airbus A319 (319) 3:37 Effective 2025-08-19 through 2025-09-24
Daily 11:08 Atlanta (ATL) N 12:45 Denver (DEN)
United Airlines UA 1327 Non-stop Airbus A319 (319) 3:37 Effective 2025-10-26 through 2025-12-17
Daily 11:08 Atlanta (ATL) N 12:45 Denver (DEN)
United Airlines UA 1327 Non-stop Airbus A319 (319) 3:37 Effective from 2026-01-06
Tue-Sun 11:10 Atlanta (ATL) N 12:26 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-800 (738) 3:16 Effective 2025-05-22 through 2025-06-01
Mon 11:10 Atlanta (ATL) N 12:26 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737 MAX 8 (7M8) 3:16 Operates only on 2025-05-26
Daily 11:10 Atlanta (ATL) N 12:26 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-800 (738) 3:16 Effective 2025-06-02 through 2025-06-25
Daily 11:13 Atlanta (ATL) N 12:30 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737 MAX 9 (7M9) 3:17 Effective 2025-09-25 through 2025-10-25
Daily 11:15 Atlanta (ATL) N 12:44 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-800 (738) 3:29 Valid until 2025-05-21
Daily 11:24 Atlanta (ATL) N 12:41 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-900 (739) 3:17 Effective 2025-06-26 through 2025-07-04
Sat 11:24 Atlanta (ATL) N 12:41 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-800 (738) 3:17 Operates only on 2025-07-05
Daily 11:24 Atlanta (ATL) N 12:41 Denver (DEN)
United Airlines UA 1327 Non-stop Boeing 737-900 (739) 3:17 Effective 2025-07-06 through 2025-08-18




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United Airlines flights from Atlanta (ATL) to Denver (DEN).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA221
13:20
Atlanta (ATL) N

14:37
Denver (DEN)
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:17, non-stop
Airbus A320 (320)
United Airlines UA221
13:20
Atlanta (ATL) N

14:37
Denver (DEN)
Effective 2025-05-23 through 2025-06-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:17, non-stop
Airbus A319 (319)
United Airlines UA221
13:20
Atlanta (ATL) N

14:37
Denver (DEN)
Effective 2025-06-27 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
-
Duration: 3:17, non-stop
Boeing 737-800 (738)
United Airlines UA221
13:20
Atlanta (ATL) N

14:37
Denver (DEN)
Effective 2025-06-29 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 3:17, non-stop
Airbus A319 (319)
United Airlines UA235
16:16
Atlanta (ATL) N

17:55
Denver (DEN)
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:39, non-stop
Airbus A320 (320)
United Airlines UA235
16:16
Atlanta (ATL) N

17:55
Denver (DEN)
Effective 2025-06-28 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:39, non-stop
Boeing 737-900 (739)
United Airlines UA235
16:23
Atlanta (ATL) N

18:00
Denver (DEN)
Effective 2025-05-22 through 2025-05-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Boeing 737-800 (738)
United Airlines UA235
16:23
Atlanta (ATL) N

18:00
Denver (DEN)
Operates only on 2025-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:37, non-stop
Boeing 737-900 (739)
United Airlines UA235
16:23
Atlanta (ATL) N

18:00
Denver (DEN)
Effective 2025-05-31 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Boeing 737-800 (738)
United Airlines UA235
16:31
Atlanta (ATL) N

18:03
Denver (DEN)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:32, non-stop
Boeing 737-800 (738)
United Airlines UA235
16:35
Atlanta (ATL) N

18:05
Denver (DEN)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:30, non-stop
Boeing 737-800 (738)
United Airlines UA235
16:35
Atlanta (ATL) N

18:05
Denver (DEN)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:30, non-stop
Airbus A320 (320)
United Airlines UA235
16:37
Atlanta (ATL) N

17:56
Denver (DEN)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:19, non-stop
Boeing 737-900 (739)
United Airlines UA340
07:00
Atlanta (ATL) N

08:29
Denver (DEN)
Effective 2025-10-26 through 2025-12-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Airbus A320 (320)
United Airlines UA340
07:00
Atlanta (ATL) N

08:29
Denver (DEN)
Effective from 2026-01-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Airbus A320 (320)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Operates only on 2025-05-22
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:14, non-stop
Airbus A320 (320)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Effective 2025-05-23 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 3:14, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Effective 2025-06-02 through 2025-06-27
Mon
Tue
-
Wed
-
Thu
Fri
Sat
Sun
-
Duration: 3:14, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Operates only on 2025-06-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:14, non-stop
Boeing 737-900 (739)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Effective 2025-06-30 through 2025-08-18
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:14, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA340
07:15
Atlanta (ATL) N

08:29
Denver (DEN)
Effective 2025-07-12 through 2025-08-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:14, non-stop
Boeing 737-900 (739)
United Airlines UA340
07:30
Atlanta (ATL) N

09:00
Denver (DEN)
Valid until 2025-05-19
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:30, non-stop
Airbus A319 (319)
United Airlines UA340
08:40
Atlanta (ATL) N

10:09
Denver (DEN)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Airbus A319 (319)
United Airlines UA340
08:40
Atlanta (ATL) N

10:09
Denver (DEN)
Effective 2025-12-02 through 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Airbus A320 (320)
United Airlines UA340
08:45
Atlanta (ATL) N

10:15
Denver (DEN)
Effective 2025-05-04 through 2025-05-21
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:30, non-stop
Airbus A319 (319)
United Airlines UA340
08:51
Atlanta (ATL) N

10:20
Denver (DEN)
Effective 2025-05-03 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:29, non-stop
Airbus A319 (319)
United Airlines UA340
09:00
Atlanta (ATL) N

10:16
Denver (DEN)
Effective 2025-05-27 through 2025-08-12
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:16, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA340
09:00
Atlanta (ATL) N

10:19
Denver (DEN)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:19, non-stop
Airbus A320 (320)
United Airlines UA1327
11:08
Atlanta (ATL) N

12:45
Denver (DEN)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Airbus A319 (319)
United Airlines UA1327
11:08
Atlanta (ATL) N

12:45
Denver (DEN)
Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Airbus A319 (319)
United Airlines UA1327
11:08
Atlanta (ATL) N

12:45
Denver (DEN)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:37, non-stop
Airbus A319 (319)
United Airlines UA1327
11:10
Atlanta (ATL) N

12:26
Denver (DEN)
Effective 2025-05-22 through 2025-06-01
Mon
-
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:16, non-stop
Boeing 737-800 (738)
United Airlines UA1327
11:10
Atlanta (ATL) N

12:26
Denver (DEN)
Operates only on 2025-05-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:16, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1327
11:10
Atlanta (ATL) N

12:26
Denver (DEN)
Effective 2025-06-02 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:16, non-stop
Boeing 737-800 (738)
United Airlines UA1327
11:13
Atlanta (ATL) N

12:30
Denver (DEN)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:17, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1327
11:15
Atlanta (ATL) N

12:44
Denver (DEN)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Boeing 737-800 (738)
United Airlines UA1327
11:24
Atlanta (ATL) N

12:41
Denver (DEN)
Effective 2025-06-26 through 2025-07-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:17, non-stop
Boeing 737-900 (739)
United Airlines UA1327
11:24
Atlanta (ATL) N

12:41
Denver (DEN)
Operates only on 2025-07-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:17, non-stop
Boeing 737-800 (738)
United Airlines UA1327
11:24
Atlanta (ATL) N

12:41
Denver (DEN)
Effective 2025-07-06 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:17, non-stop
Boeing 737-900 (739)
  • A domestic route departing from the Atlanta airport (ATL) and arriving at Denver airport (DEN).
  • The flight distance is 1196 miles, or 1925 km.
  • The timezone of the departure airport is UTC-5 , and the timezone of the arrival airport is UTC-7 . 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 3:14 and 3:39.
All ATL-DEN flights
All United Airlines flights
Return (DEN-ATL) flights
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