Frontier Airlines flights from San Francisco (SFO) to Denver (DEN).

FLIGHT SCHEDULE
Direct Flights:
Thu 08:48 San Francisco (SFO) I 12:28 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320 (320) 2:40 Effective 2026-02-12 through 2026-02-19
Thu 08:48 San Francisco (SFO) I 12:28 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320neo (32N) 2:40 Effective 2026-02-26 through 2026-03-05
Sat 08:58 San Francisco (SFO) I 12:38 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320neo (32N) 2:40 Effective 2026-02-14 through 2026-02-28
Sat 15:50 San Francisco (SFO) I 19:25 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320neo (32N) 2:35 Valid until 2026-01-03
Tue,Thu,Sun 16:07 San Francisco (SFO) I 19:48 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320neo (32N) 2:41 Valid until 2026-01-04
Daily 16:07 San Francisco (SFO) I 19:48 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A321 (321) 2:41 Effective 2026-04-02 through 2026-04-13
Daily 21:04 San Francisco (SFO) I 00:37 Denver (DEN) Frontier Airlines F9 1094 Non-stop Airbus A320neo (32N) 2:33 Effective 2026-03-06 through 2026-03-31 The flight arrives 1 day after departure.
Wed 16:07 San Francisco (SFO) I 19:48 Denver (DEN) Frontier Airlines F9 1096 Non-stop Airbus A321 (321) 2:41 Operates only on 2026-04-01
Daily 06:00 San Francisco (SFO) I 09:47 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:47 Effective 2026-03-06 through 2026-03-31
Thu 06:05 San Francisco (SFO) I 09:47 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321 (321) 2:42 Operates only on 2026-01-08
Mon,Fri,Sun 06:05 San Francisco (SFO) I 09:47 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:42 Effective 2026-01-09 through 2026-01-12
Thu,Sun 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321neo (32Q) 2:47 Effective 2026-01-15 through 2026-01-22
Fri 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:47 Operates only on 2026-01-16
Thu,Fri 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321neo (32Q) 2:47 Effective 2026-01-23 through 2026-02-06
Mon,Sun 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:47 Effective 2026-01-25 through 2026-02-09
Mon,Thu,Fri,Sun 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:47 Effective 2026-02-12 through 2026-03-05
Sat 06:15 San Francisco (SFO) I 10:02 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321neo (32Q) 2:47 Effective 2026-02-14 through 2026-02-28
Daily 06:15 San Francisco (SFO) I 09:57 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321 (321) 2:42 Effective 2026-04-01 through 2026-04-13
Tue,Wed,Sat,Sun 06:24 San Francisco (SFO) I 10:06 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:42 Valid until 2026-01-03
Mon,Thu,Fri,Sun 06:24 San Francisco (SFO) I 10:06 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321neo (32Q) 2:42 Valid until 2026-01-04
Mon 06:24 San Francisco (SFO) I 10:06 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A321 (321) 2:42 Operates only on 2026-01-05
Mon 06:25 San Francisco (SFO) I 10:12 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:47 Operates only on 2026-01-19
Tue,Wed,Sat 07:00 San Francisco (SFO) I 10:36 Denver (DEN) Frontier Airlines F9 1230 Non-stop Airbus A320neo (32N) 2:36 Effective 2026-01-20 through 2026-02-07
Tue 06:55 San Francisco (SFO) I 10:42 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:47 Effective 2026-02-10 through 2026-03-03
Wed 06:55 San Francisco (SFO) I 10:42 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A321neo (32Q) 2:47 Effective 2026-02-11 through 2026-03-04
Tue,Wed,Sat 07:00 San Francisco (SFO) I 10:42 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:42 Effective 2026-01-06 through 2026-01-10
Tue 07:00 San Francisco (SFO) I 10:36 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:36 Operates only on 2026-01-13
Wed,Sat 07:00 San Francisco (SFO) I 10:36 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A321neo (32Q) 2:36 Effective 2026-01-14 through 2026-01-17
Fri 08:48 San Francisco (SFO) I 12:28 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320 (320) 2:40 Effective 2026-02-13 through 2026-02-20
Mon,Sun 08:48 San Francisco (SFO) I 12:28 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:40 Effective 2026-02-15 through 2026-02-23
Mon,Fri,Sun 08:48 San Francisco (SFO) I 12:28 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:40 Effective 2026-02-27 through 2026-03-02
Thu 08:58 San Francisco (SFO) I 12:40 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:42 Operates only on 2026-01-08
Fri 08:58 San Francisco (SFO) I 12:40 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A321 (321) 2:42 Operates only on 2026-01-09
Mon,Sun 08:58 San Francisco (SFO) I 12:40 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A321neo (32Q) 2:42 Effective 2026-01-11 through 2026-01-12
Fri 11:55 San Francisco (SFO) I 15:37 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A321neo (32Q) 2:42 Operates only on 2026-01-16
Mon 11:55 San Francisco (SFO) I 15:37 Denver (DEN) Frontier Airlines F9 3440 Non-stop Airbus A320neo (32N) 2:42 Operates only on 2026-01-19

A domestic route departing from the San Francisco airport (SFO) and arriving at Denver airport (DEN).
The flight distance is 964 miles, or 1552 km.
The timezone of the departure airport is UTC-8 , 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 2:33 and 2:47.

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FLIGHT SCHEDULE

Direct Flights:

Frontier Airlines F91094

08:48

San Francisco (SFO) I

12:28

Denver (DEN)

Effective 2026-02-12 through 2026-02-19

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F91094

08:48

San Francisco (SFO) I

12:28

Denver (DEN)

Effective 2026-02-26 through 2026-03-05

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91094

08:58

San Francisco (SFO) I

12:38

Denver (DEN)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:40, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91094

15:50

San Francisco (SFO) I

19:25

Denver (DEN)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:35, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91094

16:07

San Francisco (SFO) I

19:48

Denver (DEN)

Valid until 2026-01-04

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:41, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91094

16:07

San Francisco (SFO) I

19:48

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:41, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91094

21:04

San Francisco (SFO) I

00:37(+1)

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:33, non-stop
Airbus A320neo (32N)
The flight arrives 1 day after departure.

Direct Flights:

Frontier Airlines F91096

16:07

San Francisco (SFO) I

19:48

Denver (DEN)

Operates only on 2026-04-01

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:41, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91230

06:00

San Francisco (SFO) I

09:47

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:05

San Francisco (SFO) I

09:47

Denver (DEN)

Operates only on 2026-01-08

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91230

06:05

San Francisco (SFO) I

09:47

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:42, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

Effective 2026-01-15 through 2026-01-22

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun

Duration: 2:47, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

Operates only on 2026-01-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

Effective 2026-01-23 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:47, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

Effective 2026-01-25 through 2026-02-09

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

10:02

Denver (DEN)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:47, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91230

06:15

San Francisco (SFO) I

09:57

Denver (DEN)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:42, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91230

06:24

San Francisco (SFO) I

10:06

Denver (DEN)

Valid until 2026-01-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun

Duration: 2:42, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

06:24

San Francisco (SFO) I

10:06

Denver (DEN)

Valid until 2026-01-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:42, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F91230

06:24

San Francisco (SFO) I

10:06

Denver (DEN)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F91230

06:25

San Francisco (SFO) I

10:12

Denver (DEN)

Operates only on 2026-01-19

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F91230

07:00

San Francisco (SFO) I

10:36

Denver (DEN)

Effective 2026-01-20 through 2026-02-07

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:36, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

06:55

San Francisco (SFO) I

10:42

Denver (DEN)

Effective 2026-02-10 through 2026-03-03

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:47, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

06:55

San Francisco (SFO) I

10:42

Denver (DEN)

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

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:47, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F93440

07:00

San Francisco (SFO) I

10:42

Denver (DEN)

Effective 2026-01-06 through 2026-01-10

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:42, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

07:00

San Francisco (SFO) I

10:36

Denver (DEN)

Operates only on 2026-01-13

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:36, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

07:00

San Francisco (SFO) I

10:36

Denver (DEN)

Effective 2026-01-14 through 2026-01-17

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:36, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F93440

08:48

San Francisco (SFO) I

12:28

Denver (DEN)

Effective 2026-02-13 through 2026-02-20

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:40, non-stop
Airbus A320 (320)

Direct Flights:

Frontier Airlines F93440

08:48

San Francisco (SFO) I

12:28

Denver (DEN)

Effective 2026-02-15 through 2026-02-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

08:48

San Francisco (SFO) I

12:28

Denver (DEN)

Effective 2026-02-27 through 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

08:58

San Francisco (SFO) I

12:40

Denver (DEN)

Operates only on 2026-01-08

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A320neo (32N)

Direct Flights:

Frontier Airlines F93440

08:58

San Francisco (SFO) I

12:40

Denver (DEN)

Operates only on 2026-01-09

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A321 (321)

Direct Flights:

Frontier Airlines F93440

08:58

San Francisco (SFO) I

12:40

Denver (DEN)

Effective 2026-01-11 through 2026-01-12

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:42, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F93440

11:55

San Francisco (SFO) I

15:37

Denver (DEN)

Operates only on 2026-01-16

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A321neo (32Q)

Direct Flights:

Frontier Airlines F93440

11:55

San Francisco (SFO) I

15:37

Denver (DEN)

Operates only on 2026-01-19

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:42, non-stop
Airbus A320neo (32N)

A domestic route departing from the San Francisco airport (SFO) and arriving at Denver airport (DEN).
The flight distance is 964 miles, or 1552 km.
The timezone of the departure airport is UTC-8 , 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 2:33 and 2:47.

All SFO-DEN flights

All Frontier Airlines flights

Return (DEN-SFO) flights

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