| 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 |  Frontier Airlines |  | ? | $135 | |
| Best option Denver St. Louis | Outbound 11/09/25 direct UA1315 02h 03min | Return 12/07/25 direct UA2625 02h 30min |  United Airlines |  | ? | $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 |   Sun Country Airlines, Southern Airways Express |  | $505 | ||
| Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (MCO) F91632, F93311 14h 19min | Frontier Airlines |  | ? | $180 | |
| Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (LAS) F93107, F91994 07h 08min | Frontier Airlines |  | $224 | ||
| Denver St. Louis | Outbound 11/09/25 direct F93302 02h 07min | Return 12/07/25 1 Stopover (LAS) F93107, F91994 07h 08min | Frontier Airlines |  | $225 | ||
| Denver St. Louis | Outbound 02/13/26 direct UA1315 02h 04min | Return 02/26/26 direct UA0551 02h 34min | United Airlines | | ? | $310 | |
| Denver St. Louis | Outbound 02/13/26 direct UA1422 02h 05min | Return 02/26/26 direct UA0551 02h 34min | United Airlines | | ? | $321 | |
| Denver St. Louis | Outbound 02/13/26 direct F93302 02h 12min | Return 02/26/26 1 Stopover (ATL) F94474, F93599 11h 56min | Frontier Airlines | | $322 | ||
| Denver St. Louis | Outbound 02/13/26 direct F93302 02h 12min | Return 02/26/26 1 Stopover (SEA) AS0314, AS0642 08h 44min | Frontier Airlines |  | ? | $406 |
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 %