Outbound | Return | Airlines | Shop | Baggage | Price | ||
---|---|---|---|---|---|---|---|
Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (ATL) DL1393, DL0956 06h 14min | | ![]() | ? | $135 | |
Best option Denver St. Louis | Outbound 11/09/25 direct UA1315 02h 03min | Return 12/07/25 direct UA2625 02h 30min | | ![]() | ? | $232 | |
Denver St. Louis | Outbound 11/09/25 3 Stopovers (MSP, BNA, JBR) SY0652, SY0633, 9X0459, 9X0454 32h 22min | Return 12/07/25 3 Stopovers (FLL, DFW, CVN) NK2158, NK2555, KG5411, KG5414 26h 20min | | ![]() | $505 | ||
Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (MCO) F91632, F93311 14h 19min | | ![]() | ? | $180 | |
Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (LAS) F93107, F91994 07h 08min | | ![]() | $224 | ||
Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (LAS) F93107, F91994 07h 08min | | ![]() | $225 | ||
Denver St. Louis | Outbound 02/13/26 direct UA1315 02h 04min | Return 02/26/26 direct UA0551 02h 34min | | ![]() | ? | $310 | |
Denver St. Louis | Outbound 02/13/26 direct UA1422 02h 05min | Return 02/26/26 direct UA0551 02h 34min | | ![]() | ? | $321 | |
Denver St. Louis | Outbound 02/13/26 direct F93302 02h 12min | Return 02/26/26 1 Stopover (ATL) F94474, F93599 11h 56min | | ![]() | $322 | ||
Denver St. Louis | Outbound 02/13/26 direct F93302 02h 12min | Return 02/26/26 1 Stopover (SEA) AS0314, AS0642 08h 44min | | ![]() | ? | $406 |
Stops
- Direct flight
Airline
- Frontier Airlines
- United Airlines
- American Airlines
- Alaska Airlines
- Sun Country 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 | $134.40 |
---|---|
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 $107
- Flight Denver - San Francisco from $64
- Flight Denver - Miami from $154
- Flight Denver - New York from $237
- Flight Denver - Los Angeles from $121
- Flight Denver - Seattle-Tacoma from $66
- Flight Denver - Chicago from $135
- Flight Denver - New York from $237
- Flight Denver - Tampa from $119
- Flight Denver - Dallas from $78
Alternative flights to St. Louis
- Flight Atlanta - St. Louis from $110
- Flight Boston - St. Louis from $313
- Flight Dallas - St. Louis from $375
- Flight Chicago - St. Louis from $192
- Flight Chicago O'Hare - St. Louis from $192
Flight destinations with a similar price
- Flight St. Louis - Frankfurt from $709
- Flight St. Louis - Berlin from $797
- Flight St. Louis - Dublin from $497
Flight destinations with a similar price
- Flight Denver - Los Angeles from $121
- Flight Denver - Chicago from $135
- Flight Denver - Chicago O'Hare from $135