United Airlines flights from Denver (DEN) to Saint Louis (STL).

FLIGHT SCHEDULE
Direct Flights:
Daily 20:45 Denver (DEN) 23:43 Saint Louis (STL) 1 United Airlines UA 214 Non-stop Airbus A319 (319) 1:58 Effective 2026-05-21 through 2026-10-24
Daily 09:45 Denver (DEN) 12:43 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A320 (320) 1:58 Effective from 2026-05-21
Daily 10:00 Denver (DEN) 13:07 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:07 Effective 2026-03-29 through 2026-04-29
Daily 10:00 Denver (DEN) 13:07 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Boeing 737 MAX 8 (7M8) 2:07 Effective 2026-04-30 through 2026-05-20
Mon,Tue,Sat 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:06 Effective 2026-01-06 through 2026-01-17
Wed-Fri,Sun 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:06 Effective 2026-01-07 through 2026-01-18
Mon,Wed-Fri,Sun 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:06 Effective 2026-01-19 through 2026-01-25
Mon,Tue,Sat 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:06 Effective 2026-01-20 through 2026-02-10
Wed-Fri,Sun 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:06 Effective 2026-01-28 through 2026-02-01
Wed-Fri,Sun 10:10 Denver (DEN) 13:16 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:06 Effective 2026-02-05 through 2026-02-11
Mon-Fri,Sun 10:10 Denver (DEN) 13:14 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:04 Effective 2026-02-12 through 2026-03-04
Sat 10:10 Denver (DEN) 13:14 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:04 Effective 2026-02-14 through 2026-02-28
Daily 10:15 Denver (DEN) 13:20 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:05 Valid until 2026-01-05
Daily 10:15 Denver (DEN) 13:19 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:04 Effective 2026-03-05 through 2026-03-28
Wed 10:35 Denver (DEN) 13:41 Saint Louis (STL) 1 United Airlines UA 652 Non-stop Airbus A319 (319) 2:06 Operates only on 2026-02-04
Daily 13:30 Denver (DEN) 16:26 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Airbus A319 (319) 1:56 Effective from 2026-05-21
Mon,Wed,Sun 13:45 Denver (DEN) 16:49 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-900 (739) 2:04 Effective 2026-03-08 through 2026-03-25
Daily 13:45 Denver (DEN) 16:52 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Airbus A319 (319) 2:07 Effective 2026-03-29 through 2026-04-29
Daily 13:48 Denver (DEN) 16:55 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:07 Effective 2026-04-30 through 2026-05-20
Thu 13:52 Denver (DEN) 16:56 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-900 (739) 2:04 Effective 2026-03-05 through 2026-03-26
Wed-Fri,Sun 13:53 Denver (DEN) 16:55 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:02 Effective 2026-01-07 through 2026-01-18
Mon,Wed-Fri,Sun 13:53 Denver (DEN) 16:55 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:02 Effective 2026-01-19 through 2026-01-25
Wed-Fri,Sun 13:53 Denver (DEN) 16:55 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:02 Effective 2026-01-28 through 2026-02-11
Mon,Wed,Thu 13:54 Denver (DEN) 16:58 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:04 Effective 2026-02-12 through 2026-02-19
Fri,Sun 13:54 Denver (DEN) 16:58 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Airbus A319 (319) 2:04 Effective 2026-02-13 through 2026-02-15
Fri 13:54 Denver (DEN) 16:58 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737 MAX 8 (7M8) 2:04 Effective 2026-02-20 through 2026-02-27
Sun 13:54 Denver (DEN) 16:58 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Airbus A319 (319) 2:04 Effective 2026-02-22 through 2026-03-01
Wed,Thu 13:54 Denver (DEN) 16:58 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-800 (738) 2:04 Effective 2026-02-25 through 2026-03-04
Fri 13:55 Denver (DEN) 16:59 Saint Louis (STL) 1 United Airlines UA 1315 Non-stop Boeing 737-900 (739) 2:04 Effective 2026-03-06 through 2026-03-27
Daily 17:25 Denver (DEN) 20:26 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Boeing 737-800 (738) 2:01 Effective 2026-02-12 through 2026-03-04
Daily 17:36 Denver (DEN) 20:45 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Airbus A320 (320) 2:09 Effective 2026-03-29 through 2026-04-29
Daily 17:45 Denver (DEN) 20:54 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Airbus A319 (319) 2:09 Effective 2026-04-30 through 2026-05-20
Daily 17:50 Denver (DEN) 20:58 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Boeing 737-800 (738) 2:08 Effective 2026-01-06 through 2026-02-11
Mon-Fri,Sun 17:50 Denver (DEN) 20:55 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Boeing 737-900 (739) 2:05 Effective 2026-03-05 through 2026-03-27
Sat 17:52 Denver (DEN) 20:57 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Boeing 737-900 (739) 2:05 Effective 2026-03-07 through 2026-03-28
Daily 17:59 Denver (DEN) 20:59 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Airbus A320 (320) 2:00 Effective from 2026-05-21
Mon,Wed-Sat 19:13 Denver (DEN) 22:22 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Boeing 737-800 (738) 2:09 Valid until 2026-01-05
Sun 19:13 Denver (DEN) 22:22 Saint Louis (STL) 1 United Airlines UA 1422 Non-stop Airbus A320 (320) 2:09 Operates only on 2026-01-04
Daily 20:20 Denver (DEN) 23:34 Saint Louis (STL) 1 United Airlines UA 4748 Non-stop Embraer EMB 175 (E7W) 2:14 Effective 2026-03-05 through 2026-03-28
Non-Direct Flights:
Wed,Thu,Sat,Sun 15:36 Denver (DEN) 22:14 Saint Louis (STL) 1 United Airlines UA 489 1-stop Airbus A321neo (32Q) 5:38 Effective 2026-02-12 through 2026-02-19
Tue,Fri 15:36 Denver (DEN) 22:14 Saint Louis (STL) 1 United Airlines UA 489 1-stop Boeing 737-900 (739) 5:38 Effective 2026-02-13 through 2026-02-17
Mon 15:36 Denver (DEN) 22:17 Saint Louis (STL) 1 United Airlines UA 489 1-stop Airbus A321neo (32Q) 5:41 Operates only on 2026-02-16
Mon,Wed-Sun 15:36 Denver (DEN) 22:14 Saint Louis (STL) 1 United Airlines UA 489 1-stop Airbus A321neo (32Q) 5:38 Effective 2026-02-20 through 2026-03-04
Tue 15:36 Denver (DEN) 22:14 Saint Louis (STL) 1 United Airlines UA 489 1-stop Boeing 737-900 (739) 5:38 Effective 2026-02-24 through 2026-03-03

A domestic route departing from the Denver airport (DEN) and arriving at Saint Louis airport (STL).
The flight distance is 767 miles, or 1235 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . 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 1:56 and 2:14.

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FLIGHT SCHEDULE

Direct Flights:

United Airlines UA214

20:45

Denver (DEN)

23:43

Saint Louis (STL) 1

Effective 2026-05-21 through 2026-10-24

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:58, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

09:45

Denver (DEN)

12:43

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:58, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA652

10:00

Denver (DEN)

13:07

Saint Louis (STL) 1

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:07, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:00

Denver (DEN)

13:07

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:07, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

Effective 2026-01-06 through 2026-01-17

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:06, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

Effective 2026-01-07 through 2026-01-18

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

Effective 2026-01-20 through 2026-02-10

Mon

Tue

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:06, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

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

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:16

Saint Louis (STL) 1

Effective 2026-02-05 through 2026-02-11

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:14

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:04, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:10

Denver (DEN)

13:14

Saint Louis (STL) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:04, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA652

10:15

Denver (DEN)

13:20

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:05, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA652

10:15

Denver (DEN)

13:19

Saint Louis (STL) 1

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:04, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA652

10:35

Denver (DEN)

13:41

Saint Louis (STL) 1

Operates only on 2026-02-04

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:06, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1315

13:30

Denver (DEN)

16:26

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 1:56, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1315

13:45

Denver (DEN)

16:49

Saint Louis (STL) 1

Effective 2026-03-08 through 2026-03-25

Mon

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:04, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1315

13:45

Denver (DEN)

16:52

Saint Louis (STL) 1

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:07, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1315

13:48

Denver (DEN)

16:55

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:07, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:52

Denver (DEN)

16:56

Saint Louis (STL) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:04, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1315

13:53

Denver (DEN)

16:55

Saint Louis (STL) 1

Effective 2026-01-07 through 2026-01-18

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:02, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:53

Denver (DEN)

16:55

Saint Louis (STL) 1

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:02, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:53

Denver (DEN)

16:55

Saint Louis (STL) 1

Effective 2026-01-28 through 2026-02-11

Mon
-

Tue
-

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:02, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:54

Denver (DEN)

16:58

Saint Louis (STL) 1

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

Mon

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:04, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:54

Denver (DEN)

16:58

Saint Louis (STL) 1

Effective 2026-02-13 through 2026-02-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:04, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1315

13:54

Denver (DEN)

16:58

Saint Louis (STL) 1

Effective 2026-02-20 through 2026-02-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:04, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

United Airlines UA1315

13:54

Denver (DEN)

16:58

Saint Louis (STL) 1

Effective 2026-02-22 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:04, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1315

13:54

Denver (DEN)

16:58

Saint Louis (STL) 1

Effective 2026-02-25 through 2026-03-04

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:04, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1315

13:55

Denver (DEN)

16:59

Saint Louis (STL) 1

Effective 2026-03-06 through 2026-03-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 2:04, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1422

17:25

Denver (DEN)

20:26

Saint Louis (STL) 1

Effective 2026-02-12 through 2026-03-04

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:01, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1422

17:36

Denver (DEN)

20:45

Saint Louis (STL) 1

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:09, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1422

17:45

Denver (DEN)

20:54

Saint Louis (STL) 1

Effective 2026-04-30 through 2026-05-20

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:09, non-stop
Airbus A319 (319)

Direct Flights:

United Airlines UA1422

17:50

Denver (DEN)

20:58

Saint Louis (STL) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:08, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1422

17:50

Denver (DEN)

20:55

Saint Louis (STL) 1

Effective 2026-03-05 through 2026-03-27

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1422

17:52

Denver (DEN)

20:57

Saint Louis (STL) 1

Effective 2026-03-07 through 2026-03-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737-900 (739)

Direct Flights:

United Airlines UA1422

17:59

Denver (DEN)

20:59

Saint Louis (STL) 1

Effective from 2026-05-21

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:00, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA1422

19:13

Denver (DEN)

22:22

Saint Louis (STL) 1

Valid until 2026-01-05

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun
-

Duration: 2:09, non-stop
Boeing 737-800 (738)

Direct Flights:

United Airlines UA1422

19:13

Denver (DEN)

22:22

Saint Louis (STL) 1

Operates only on 2026-01-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:09, non-stop
Airbus A320 (320)

Direct Flights:

United Airlines UA4748

20:20

Denver (DEN)

23:34

Saint Louis (STL) 1

Effective 2026-03-05 through 2026-03-28

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 2:14, non-stop
Embraer EMB 175 (E7W)

Non-Direct Flights:

United Airlines UA489

15:36

Denver (DEN)

22:14

Saint Louis (STL) 1

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

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat

Sun

Duration: 5:38, 1-stop
Airbus A321neo (32Q)

Non-Direct Flights:

United Airlines UA489

15:36

Denver (DEN)

22:14

Saint Louis (STL) 1

Effective 2026-02-13 through 2026-02-17

Mon
-

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 5:38, 1-stop
Boeing 737-900 (739)

Non-Direct Flights:

United Airlines UA489

15:36

Denver (DEN)

22:17

Saint Louis (STL) 1

Operates only on 2026-02-16

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:41, 1-stop
Airbus A321neo (32Q)

Non-Direct Flights:

United Airlines UA489

15:36

Denver (DEN)

22:14

Saint Louis (STL) 1

Effective 2026-02-20 through 2026-03-04

Mon

Tue
-

Wed

Thu

Fri

Sat

Sun

Duration: 5:38, 1-stop
Airbus A321neo (32Q)

Non-Direct Flights:

United Airlines UA489

15:36

Denver (DEN)

22:14

Saint Louis (STL) 1

Effective 2026-02-24 through 2026-03-03

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 5:38, 1-stop
Boeing 737-900 (739)

A domestic route departing from the Denver airport (DEN) and arriving at Saint Louis airport (STL).
The flight distance is 767 miles, or 1235 km.
The timezone of the departure airport is UTC-7 , and the timezone of the arrival airport is UTC-6 . 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 1:56 and 2:14.

All DEN-STL flights

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Return (STL-DEN) flights

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