Denver (DEN) to St. Louis (STL) Flight Schedule

Flight Denver(DEN) to St. Louis(STL)
CHANGE DIRECTION

Denver International Airport St. Louis Lambert International Airport
DEN : Denver , United States STL : St. Louis , United States
UTC-6(DST) UTC-5(DST)

Denver to St. Louis Flight Schedule(September 2025)

Flight from Denver(DEN) to St. Louis(STL) is operated by 3 airlines : United Airlines (UA),Southwest Airlines (WN),Frontier Airlines (F9). You can check flight schedules, flight duration, and aircraft types.

Change Direction(STL to DEN)

Denver (DEN) to St. Louis (STL) Flight Schedule

LastUpdate : 2025/09/01 06:00

Flight Schedule on September 2025 , Direct flight departure from Denver with all airlines , flight number, flight duration, aircraft type.

September 2025
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Change Direction(STL to DEN)
Flight Number / Airline Departure Time Arrival Time Flight Duration Operating Days Aircraft Type Airfare / Tickets
WN1277
Southwest Airlines 		05:30 08:30 2h0m
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26)
737-8-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
08:30 11:30 2h0m
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
737-700 (WL)
05:30 08:30 2h0m
M------ (Sep 29)
737-8-MAX
F93302
Frontier Airlines 		06:00 09:11 2h11m
M------ (Sep 1)
A321 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
06:00 09:11 2h11m
-TW---- (Sep 2–3)
A321neo
06:00 09:06 2h6m
Daily (Sep 4–30)
A321
Codeshare flight ▼
WN2687
Southwest Airlines 		07:45 10:50 2h5m
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26)
737-8-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
10:25 13:30 2h5m
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
737-8-MAX
06:40 09:40 2h0m
-----S- (Sep 6, Sep 13, Sep 20, Sep 27)
737-8-MAX
06:20 09:25 2h5m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-8-MAX
07:45 10:50 2h5m
M------ (Sep 29)
737-8-MAX
WN2695
Southwest Airlines 		20:50 23:55 2h5m
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26)
737-800 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
07:00 10:00 2h0m
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
737-700 (WL)
20:15 23:15 2h0m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-8-MAX
20:50 23:55 2h5m
M------ (Sep 29)
737-800 (WL)
WN4034
Southwest Airlines 		07:30 10:30 2h0m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-8-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN332
Southwest Airlines 		08:50 13:05 3h15m
1 Transfer
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26, Sep 29)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN438
Southwest Airlines 		09:30 12:30 2h0m
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26)
737-8-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
09:30 12:30 2h0m
-----S- (Sep 6, Sep 13, Sep 20, Sep 27)
737-800 (WL)
10:10 13:15 2h5m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-800 (WL)
09:30 12:30 2h0m
M------ (Sep 29)
737-8-MAX
UA652
United Airlines 		09:40 12:43 2h3m
M-W---- (Sep 1, Sep 3)
A320 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
09:40 12:43 2h3m
Daily (Sep 2, Sep 4–24)
A319
09:40 12:44 2h4m
MT-TFSS (Sep 25–30)
A320
Codeshare flight ▼
WN2885
Southwest Airlines 		10:10 19:40 8h30m
2 Transfers
------S (Sep 7, Sep 14, Sep 21, Sep 28)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN3589
Southwest Airlines 		13:00 16:00 2h0m
M--TF-S (Sep 1, Sep 4–5, Sep 7–8, Sep 11–12, Sep 14–15, Sep 18–19, Sep 21–22, Sep 25–26, Sep 28)
737-800 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
13:00 16:00 2h0m
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
737-700 (WL)
13:55 17:00 2h5m
-----S- (Sep 6, Sep 13, Sep 20, Sep 27)
737-700 (WL)
13:00 16:00 2h0m
M------ (Sep 29)
737-800 (WL)
WN2284
Southwest Airlines 		13:10 17:45 3h35m
1 Transfer
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN290
Southwest Airlines 		13:15 17:50 3h35m
1 Transfer
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
UA1315
United Airlines 		13:26 16:33 2h7m
Daily (Sep 1–24)
A320 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
13:25 16:32 2h7m
MT-TFSS (Sep 25–30)
A319
Codeshare flight ▼
WN2079
Southwest Airlines 		14:10 18:35 3h25m
1 Transfer
M--TF-- (Sep 1, Sep 4–5, Sep 8, Sep 11–12, Sep 15, Sep 18–19, Sep 22, Sep 25–26, Sep 29)
Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN3558
Southwest Airlines 		16:40 19:45 2h5m
MTWTF-- (Sep 1–5, Sep 8–12, Sep 15–19, Sep 22–26, Sep 29–30)
737-700 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
WN2521
Southwest Airlines 		17:35 20:45 2h10m
-----S- (Sep 6, Sep 13, Sep 20, Sep 27)
737-8-MAX Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
18:50 21:55 2h5m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-800 (WL)
UA1422
United Airlines 		17:40 20:46 2h6m
Daily (Sep 1–23, Sep 25–26, Sep 28)
737-900 Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
17:40 20:46 2h6m
--W---- (Sep 24)
737-8-MAX
17:40 20:46 2h6m
-----S- (Sep 27)
737-800
17:40 20:46 2h6m
MT----- (Sep 29–30)
737-900
Codeshare flight ▼
WN2222
Southwest Airlines 		18:45 21:50 2h5m
-TW---- (Sep 2–3, Sep 9–10, Sep 16–17, Sep 23–24, Sep 30)
737-800 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
UA5617
United Airlines 		20:40 23:53 2h13m
Daily (Sep 1–5, Sep 7–24)
E175 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
20:45 23:58 2h13m
MT-TFSS (Sep 25–30)
E175 (WL)
Codeshare flight ▼
WN1989
Southwest Airlines 		22:10 01:15(+1) 2h5m
------S (Sep 7, Sep 14, Sep 21, Sep 28)
737-700 (WL) Trip.com PRICES HIS Prices Expedia PRICES skyticket PRICES
Change Direction(STL to DEN)
Flight schedules as of September 01, 2025, 06:00 AM(OAG data). Schedules may change without notice, so please check with airlines before booking. Refer to FlyTeam's terms of use before proceeding. Some airlines and flight numbers may not be displayed.

FAQ : Denver to St. Louis

How many airlines fly from Denver to St. Louis ?
As of September 2025, 3 airlines operate direct flights from Denver (DEN) to St. Louis (STL) : United Airlines , Southwest Airlines , Frontier Airlines.
How far is it from Denver to St. Louis?
The distance between Denver (DEN) to St. Louis (STL) is approximately 770 miles(1,240km) by air.
What is the time difference between Denver to St. Louis?
The time difference between Denver International Airport(Denver) and St. Louis Lambert International Airport(St. Louis) is +1 hour. St. Louis is 1 hour ahead of Denver.Denver is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.St. Louis is currently observing daylight saving time (DST) from March 9, 2025 to November 2, 2025.