Frontier Airlines flights from Austin (AUS) to Denver (DEN).

FLIGHT SCHEDULE
Direct Flights:
Tue,Thu-Sun 06:45 Austin (AUS) 08:10 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:25 Valid until 2026-01-03
Mon,Thu,Fri,Sun 06:45 Austin (AUS) 08:10 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:25 Effective 2026-01-04 through 2026-01-12
Thu,Sun 06:45 Austin (AUS) 08:11 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:26 Effective 2026-01-15 through 2026-01-18
Mon,Fri 06:45 Austin (AUS) 08:11 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:26 Effective 2026-01-16 through 2026-01-19
Thu-Sun 06:45 Austin (AUS) 08:11 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:26 Effective 2026-02-12 through 2026-03-05
Mon 06:45 Austin (AUS) 08:11 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:26 Effective 2026-02-16 through 2026-03-02
Daily 06:45 Austin (AUS) 08:11 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:26 Effective 2026-03-06 through 2026-03-31
Daily 06:45 Austin (AUS) 08:10 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321 (321) 2:25 Effective 2026-04-01 through 2026-04-13
Mon,Thu,Fri,Sun 06:55 Austin (AUS) 08:21 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:26 Effective 2026-01-22 through 2026-02-09
Tue 08:30 Austin (AUS) 09:57 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:27 Operates only on 2026-02-10
Tue,Wed 08:30 Austin (AUS) 09:57 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:27 Effective 2026-02-11 through 2026-03-04
Tue 10:32 Austin (AUS) 11:54 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:22 Operates only on 2026-01-06
Wed,Sat 10:32 Austin (AUS) 11:54 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:22 Effective 2026-01-07 through 2026-01-10
Tue,Wed 10:40 Austin (AUS) 12:03 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:23 Effective 2026-01-20 through 2026-01-21
Tue,Sat 10:40 Austin (AUS) 12:03 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:23 Effective 2026-01-24 through 2026-02-07
Wed 10:40 Austin (AUS) 12:03 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:23 Effective 2026-01-28 through 2026-02-04
Tue,Wed 10:55 Austin (AUS) 12:18 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A321neo (32Q) 2:23 Effective 2026-01-13 through 2026-01-14
Sat 10:55 Austin (AUS) 12:18 Denver (DEN) Frontier Airlines F9 1815 Non-stop Airbus A320neo (32N) 2:23 Operates only on 2026-01-17
Thu 10:06 Austin (AUS) 11:29 Denver (DEN) Frontier Airlines F9 1859 Non-stop Airbus A320neo (32N) 2:23 Effective 2026-02-12 through 2026-03-05
Mon,Fri,Sun 10:16 Austin (AUS) 11:39 Denver (DEN) Frontier Airlines F9 1859 Non-stop Airbus A321neo (32Q) 2:23 Effective 2026-02-13 through 2026-02-22
Mon,Fri 10:16 Austin (AUS) 11:39 Denver (DEN) Frontier Airlines F9 1859 Non-stop Airbus A320neo (32N) 2:23 Effective 2026-02-23 through 2026-03-02
Sun 10:16 Austin (AUS) 11:39 Denver (DEN) Frontier Airlines F9 1859 Non-stop Airbus A321neo (32Q) 2:23 Operates only on 2026-03-01
Thu,Sat,Sun 11:01 Austin (AUS) 12:27 Denver (DEN) Frontier Airlines F9 1859 Non-stop Airbus A321neo (32Q) 2:26 Effective 2026-03-07 through 2026-03-29
Mon,Thu,Fri,Sun 11:14 Austin (AUS) 12:40 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A321 (321) 2:26 Effective 2026-04-02 through 2026-04-13
Mon 14:44 Austin (AUS) 16:10 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A320neo (32N) 2:26 Valid until 2026-01-05
Fri 14:54 Austin (AUS) 16:20 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A321neo (32Q) 2:26 Valid until 2026-01-02
Mon,Fri 15:01 Austin (AUS) 16:30 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A321 (321) 2:29 Effective 2026-01-09 through 2026-01-12
Thu 15:16 Austin (AUS) 16:47 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A321neo (32Q) 2:31 Effective 2026-01-22 through 2026-02-05
Mon,Fri 20:12 Austin (AUS) 21:39 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A320neo (32N) 2:27 Effective 2026-01-16 through 2026-01-19
Sun 20:15 Austin (AUS) 21:42 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A320neo (32N) 2:27 Effective 2026-01-25 through 2026-02-08
Mon,Fri 20:22 Austin (AUS) 21:49 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A320neo (32N) 2:27 Effective 2026-01-23 through 2026-02-09
Mon-Sat 22:45 Austin (AUS) 00:16 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A320neo (32N) 2:31 Effective 2026-03-06 through 2026-03-31 The flight arrives 1 day after departure.
Sun 22:58 Austin (AUS) 00:29 Denver (DEN) Frontier Airlines F9 2889 Non-stop Airbus A321 (321) 2:31 Effective 2026-03-08 through 2026-03-29 The flight arrives 1 day after departure.

A domestic route departing from the Austin airport (AUS) and arriving at Denver airport (DEN).
The flight distance is 775 miles, or 1248 km.
The timezone of the departure airport is UTC-6 , 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 2:22 and 2:31.

Feedback - Disclaimer - Privacy

FLIGHT SCHEDULE

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:10

Denver (DEN)

Valid until 2026-01-03

Mon
-

Tue

Wed
-

Thu

Fri

Sat

Sun

Duration: 2:25, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:10

Denver (DEN)

Effective 2026-01-04 through 2026-01-12

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:25, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:11

Denver (DEN)

Effective 2026-01-15 through 2026-01-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:26, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:11

Denver (DEN)

Effective 2026-01-16 through 2026-01-19

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:26, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:11

Denver (DEN)

Effective 2026-02-12 through 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat

Sun

Duration: 2:26, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:11

Denver (DEN)

Effective 2026-02-16 through 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:26, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:11

Denver (DEN)

Effective 2026-03-06 through 2026-03-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:26, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

06:45

Austin (AUS)

08:10

Denver (DEN)

Effective 2026-04-01 through 2026-04-13

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:25, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91815

06:55

Austin (AUS)

08:21

Denver (DEN)

Effective 2026-01-22 through 2026-02-09

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:26, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

08:30

Austin (AUS)

09:57

Denver (DEN)

Operates only on 2026-02-10

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:27, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

08:30

Austin (AUS)

09:57

Denver (DEN)

Effective 2026-02-11 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:27, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

10:32

Austin (AUS)

11:54

Denver (DEN)

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:22, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

10:32

Austin (AUS)

11:54

Denver (DEN)

Effective 2026-01-07 through 2026-01-10

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:22, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

10:40

Austin (AUS)

12:03

Denver (DEN)

Effective 2026-01-20 through 2026-01-21

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:23, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

10:40

Austin (AUS)

12:03

Denver (DEN)

Effective 2026-01-24 through 2026-02-07

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

10:40

Austin (AUS)

12:03

Denver (DEN)

Effective 2026-01-28 through 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:23, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91815

10:55

Austin (AUS)

12:18

Denver (DEN)

Effective 2026-01-13 through 2026-01-14

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91815

10:55

Austin (AUS)

12:18

Denver (DEN)

Operates only on 2026-01-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:23, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91859

10:06

Austin (AUS)

11:29

Denver (DEN)

Effective 2026-02-12 through 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:23, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91859

10:16

Austin (AUS)

11:39

Denver (DEN)

Effective 2026-02-13 through 2026-02-22

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91859

10:16

Austin (AUS)

11:39

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:23, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91859

10:16

Austin (AUS)

11:39

Denver (DEN)

Operates only on 2026-03-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:23, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91859

11:01

Austin (AUS)

12:27

Denver (DEN)

Effective 2026-03-07 through 2026-03-29

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat

Sun

Duration: 2:26, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F92889

11:14

Austin (AUS)

12:40

Denver (DEN)

Effective 2026-04-02 through 2026-04-13

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:26, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F92889

14:44

Austin (AUS)

16:10

Denver (DEN)

Valid until 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:26, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F92889

14:54

Austin (AUS)

16:20

Denver (DEN)

Valid until 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:26, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F92889

15:01

Austin (AUS)

16:30

Denver (DEN)

Effective 2026-01-09 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:29, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F92889

15:16

Austin (AUS)

16:47

Denver (DEN)

Effective 2026-01-22 through 2026-02-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:31, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F92889

20:12

Austin (AUS)

21:39

Denver (DEN)

Effective 2026-01-16 through 2026-01-19

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:27, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F92889

20:15

Austin (AUS)

21:42

Denver (DEN)

Effective 2026-01-25 through 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:27, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F92889

20:22

Austin (AUS)

21:49

Denver (DEN)

Effective 2026-01-23 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:27, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F92889

22:45

Austin (AUS)

00:16(+1)

Denver (DEN)

Effective 2026-03-06 through 2026-03-31

Mon

Tue

Wed

Thu

Fri

Sat

Sun
-

Duration: 2:31, non-stop
Airbus A320neo (32N)
The flight arrives 1 day after departure.

Direct Flights:

Frontier Airlines F92889

22:58

Austin (AUS)

00:29(+1)

Denver (DEN)

Effective 2026-03-08 through 2026-03-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:31, non-stop
Airbus A321 (321)
The flight arrives 1 day after departure.

A domestic route departing from the Austin airport (AUS) and arriving at Denver airport (DEN).
The flight distance is 775 miles, or 1248 km.
The timezone of the departure airport is UTC-6 , 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 2:22 and 2:31.

All AUS-DEN flights

All Frontier Airlines flights

Return (DEN-AUS) flights

Feedback - Disclaimer - Privacy