Frontier Airlines flight F9 3599: Atlanta - Denver

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 19:33 Atlanta (ATL) N 21:13 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:40 Operates only on 2026-02-28
Thu,Sun 19:46 Atlanta (ATL) N 21:26 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:40 Effective 2026-01-15 through 2026-01-18
Sat 19:50 Atlanta (ATL) N 21:30 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:40 Effective 2026-02-14 through 2026-02-21
Sun 19:54 Atlanta (ATL) N 21:31 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:37 Valid until 2026-01-04
Wed 19:55 Atlanta (ATL) N 21:35 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:40 Operates only on 2026-02-11
Wed 19:55 Atlanta (ATL) N 21:35 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:40 Effective 2026-02-25 through 2026-03-04
Mon,Thu,Sun 20:00 Atlanta (ATL) N 21:38 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:38 Effective 2026-01-08 through 2026-01-12
Fri 20:00 Atlanta (ATL) N 21:38 Denver (DEN)
F9 3599 Non-stop Airbus A321 (321) 3:38 Operates only on 2026-01-09
Mon,Fri 20:00 Atlanta (ATL) N 21:41 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:41 Effective 2026-01-16 through 2026-01-19
Mon,Tue,Fri 20:00 Atlanta (ATL) N 21:41 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:41 Effective 2026-02-10 through 2026-02-16
Tue,Thu 20:00 Atlanta (ATL) N 21:41 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:41 Effective 2026-02-12 through 2026-03-05
Mon,Wed,Fri 20:00 Atlanta (ATL) N 21:41 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:41 Effective 2026-02-18 through 2026-02-23
Mon,Fri 20:00 Atlanta (ATL) N 21:41 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:41 Effective 2026-02-27 through 2026-03-02
Mon,Fri,Sun 20:04 Atlanta (ATL) N 21:45 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:41 Effective 2026-01-23 through 2026-02-09
Sun 20:29 Atlanta (ATL) N 22:10 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:41 Effective 2026-02-15 through 2026-03-01
Tue,Thu 20:30 Atlanta (ATL) N 22:08 Denver (DEN)
F9 3599 Non-stop Airbus A321 (321) 3:38 Valid until 2026-01-01
Mon,Wed,Fri,Sat 20:30 Atlanta (ATL) N 22:08 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:38 Valid until 2026-01-03
Mon 20:52 Atlanta (ATL) N 22:30 Denver (DEN)
F9 3599 Non-stop Airbus A321 (321) 3:38 Operates only on 2026-01-05
Sat 21:00 Atlanta (ATL) N 22:44 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:44 Operates only on 2026-03-07
Daily 21:00 Atlanta (ATL) N 22:29 Denver (DEN)
F9 3599 Non-stop Airbus A320neo (32N) 3:29 Effective 2026-04-01 through 2026-04-13
Fri 21:20 Atlanta (ATL) N 23:04 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:44 Operates only on 2026-03-06
Daily 21:20 Atlanta (ATL) N 23:04 Denver (DEN)
F9 3599 Non-stop Airbus A321neo (32Q) 3:44 Effective 2026-03-08 through 2026-03-31
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Frontier Airlines flight F9 3599:
Atlanta - Denver
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Frontier Airlines F93599
19:33
Atlanta (ATL) N

21:13
Denver (DEN)
Operates only on 2026-02-28
Mon
-
Tue
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Wed
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Thu
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Fri
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Sat
Sun
-
Duration: 3:40, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
19:46
Atlanta (ATL) N

21:26
Denver (DEN)
Effective 2026-01-15 through 2026-01-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 3:40, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
19:50
Atlanta (ATL) N

21:30
Denver (DEN)
Effective 2026-02-14 through 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
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Fri
-
Sat
Sun
-
Duration: 3:40, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
19:54
Atlanta (ATL) N

21:31
Denver (DEN)
Valid until 2026-01-04
Mon
-
Tue
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Wed
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Thu
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Fri
-
Sat
-
Sun
Duration: 3:37, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
19:55
Atlanta (ATL) N

21:35
Denver (DEN)
Operates only on 2026-02-11
Mon
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Tue
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Wed
Thu
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Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
19:55
Atlanta (ATL) N

21:35
Denver (DEN)
Effective 2026-02-25 through 2026-03-04
Mon
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Tue
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Wed
Thu
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Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:38
Denver (DEN)
Effective 2026-01-08 through 2026-01-12
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 3:38, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:38
Denver (DEN)
Operates only on 2026-01-09
Mon
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Tue
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Wed
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Thu
-
Fri
Sat
-
Sun
-
Duration: 3:38, non-stop
Airbus A321 (321)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:41
Denver (DEN)
Effective 2026-01-16 through 2026-01-19
Mon
Tue
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Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:41, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:41
Denver (DEN)
Effective 2026-02-10 through 2026-02-16
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:41, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:41
Denver (DEN)
Effective 2026-02-12 through 2026-03-05
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:41, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:41
Denver (DEN)
Effective 2026-02-18 through 2026-02-23
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:41, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:00
Atlanta (ATL) N

21:41
Denver (DEN)
Effective 2026-02-27 through 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:41, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:04
Atlanta (ATL) N

21:45
Denver (DEN)
Effective 2026-01-23 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:41, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
20:29
Atlanta (ATL) N

22:10
Denver (DEN)
Effective 2026-02-15 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:41, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:30
Atlanta (ATL) N

22:08
Denver (DEN)
Valid until 2026-01-01
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:38, non-stop
Airbus A321 (321)
Direct Flights:
Frontier Airlines F93599
20:30
Atlanta (ATL) N

22:08
Denver (DEN)
Valid until 2026-01-03
Mon
Tue
-
Wed
Thu
-
Fri
Sat
Sun
-
Duration: 3:38, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
20:52
Atlanta (ATL) N

22:30
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:38, non-stop
Airbus A321 (321)
Direct Flights:
Frontier Airlines F93599
21:00
Atlanta (ATL) N

22:44
Denver (DEN)
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:44, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
21:00
Atlanta (ATL) N

22:29
Denver (DEN)
Effective 2026-04-01 through 2026-04-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:29, non-stop
Airbus A320neo (32N)
Direct Flights:
Frontier Airlines F93599
21:20
Atlanta (ATL) N

23:04
Denver (DEN)
Operates only on 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:44, non-stop
Airbus A321neo (32Q)
Direct Flights:
Frontier Airlines F93599
21:20
Atlanta (ATL) N

23:04
Denver (DEN)
Effective 2026-03-08 through 2026-03-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:44, non-stop
Airbus A321neo (32Q)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here ATL-DEN
  • F9 3599 is a domestic flight 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 3:29 and 3:44.
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