| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option Denver St. Louis | Outbound 09/04/25 direct F93302 02h 07min | Return 09/28/25 direct F94567 02h 28min |  Frontier Airlines |  | $167 found 3 days ago | ||
| Denver St. Louis | Outbound 09/04/25 direct F93302 02h 07min | Return 09/28/25 direct F94567 02h 28min | Frontier Airlines |  | $168 found 3 days ago | ||
| Denver St. Louis | Outbound 09/04/25 direct F93302 02h 07min | Return 09/28/25 direct F94567 02h 28min | Frontier Airlines |  | $179 found 3 days ago | ||
| Denver St. Louis | Outbound 06/18/25 direct F93302 02h 12min | Return 07/15/25 1 Stopover (LAS) F92017, F94612 09h 42min | Frontier Airlines | | $185 | ||
| Denver St. Louis | Outbound 06/18/25 direct F93302 02h 12min | Return 07/15/25 1 Stopover (DFW) AA1363, AA0662 07h 15min | Frontier Airlines |  | ? | $190 | |
| Denver St. Louis | Outbound 06/18/25 direct F93302 02h 12min | Return 07/15/25 1 Stopover (LAS) F92017, F94612 09h 42min | Frontier Airlines | | $195 | ||
| Denver St. Louis | Outbound 06/07/25 direct WN2814 02h 00min | Return 06/23/25 direct F94567 02h 27min |  Southwest Airlines | | ? | $209 | |
| Denver St. Louis | Outbound 06/07/25 direct F93302 02h 08min | Return 06/23/25 direct F94567 02h 27min | Frontier Airlines | | $216 | ||
| Denver St. Louis | Outbound 09/04/25 direct UA0652 02h 03min | Return 09/28/25 1 Stopover (ORD) UA1156, UA2296 06h 48min |  United Airlines |  | ? | $216 found 3 days ago | |
| Denver St. Louis | Outbound 09/04/25 direct UA5617 02h 13min | Return 09/28/25 1 Stopover (ORD) UA1156, UA2296 06h 48min | United Airlines |  | ? | $228 found 3 days ago |
Stops
- Direct flight
Airline
- Frontier Airlines
- United Airlines
- American Airlines
- Southwest Airlines
- Alaska Airlines
Tips and tricks to help you find cheap flights from Denver to St. Louis
Favorite airline: Frontier Airlines
Flight tickets on the route Denver – St. Louis are most frequently booked with Frontier Airlines.
Frontier Airlines
62 %
United Airlines
38 %
Important flight information
Flight information: Denver - St. Louis
| Roundtrip from | $ 166,28 |
|---|---|
| Flight duration | min. 01:50 / max. 07:30 |
| Return flight duration | min. 02:20/ max. 11:15 |
| Distance | 1237 km |
| Flights per week | 123 |
| Departure airport | Airport Denver International Airport, CO (DEN) |
| Arrival airport | Airport St. Louis - Lambert International Airport (STL) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight Denver - Las Vegas from $ 86
- Flight Denver - San Francisco from $ 126
- Flight Denver - Miami from $ 111
- Flight Denver - New York from $ 164
- Flight Denver - Los Angeles from $ 126
- Flight Denver - Seattle-Tacoma from $ 154
- Flight Denver - Chicago from $ 102
- Flight Denver - New York from $ 210
- Flight Denver - Tampa from $ 163
- Flight Denver - Dallas from $ 126
Alternative flights to St. Louis
- Flight Atlanta - St. Louis from $ 118
- Flight Los Angeles - St. Louis from $ 323
- Flight Tampa - St. Louis from $ 294
- Flight Orlando - St. Louis from $ 147
- Flight Las Vegas - St. Louis from $ 258
- Flight Boston - St. Louis from $ 158
- Flight Fort Myers - St. Louis from $ 291
- Flight Dallas - St. Louis from $ 127
- Flight Miami - St. Louis from $ 200
- Flight Chicago - St. Louis from $ 166
Flight destinations with a similar price
- Flight St. Louis - Hamburg from $ 809
- Flight St. Louis - Dusseldorf from $ 846
- Flight St. Louis - Berlin from $ 721
- Flight St. Louis - Munich from $ 766
- Flight St. Louis - Frankfurt from $ 854
- Flight St. Louis - Dublin from $ 681
- Flight St. Louis - Puerto Vallarta from $ 435
- Flight St. Louis - Amsterdam from $ 744
Flight destinations with a similar price
- Flight Denver - New York from $ 164
- Flight Denver - Seattle-Tacoma from $ 154
- Flight Denver - Tampa from $ 163
- Flight Denver - New York from $ 164
- Flight Denver - Atlanta from $ 154
- Flight Denver - New Orleans from $ 154
- Flight Denver - Philadelphia from $ 166
- Flight Denver - Toronto from $ 172