Flights from Denver to Saint Louis from $ 264*
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1 Passenger, Economy
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Featured daily fares for flights from Denver (DEN) to Saint Louis (STL)
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More United deals on Denver (DEN) to Saint Louis (STL) flights
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From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 05/08/26 - 05/11/26 | from $Â 267 Viewed: 19 hours ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 05/04/26 - 05/07/26 | from $Â 267 Viewed: 22 hours ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 05/07/26 - 05/11/26 | from $Â 284 Viewed: 19 hours ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 04/30/26 - 05/03/26 | from $Â 294 Viewed: 1 day ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 04/16/26 - 04/20/26 | from $Â 297 Viewed: 1 day ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 05/12/26 - 05/14/26 | from $Â 312 Viewed: 20 hours ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 04/15/26 - 04/20/26 | from $Â 312 Viewed: 1 day ago |
| Denver (DEN) | Saint Louis (STL) | Roundtrip | Economy | 04/26/26 - 04/30/26 | from $Â 264 Viewed: 1 hour ago |
*Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.
