United flights from Denver to Saint Louis from $ 157*

Featured daily fares for flights from Denver (DEN) to Saint Louis (STL)

$ 292
$ 817
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Range$ 292-$ 817

More United deals on Denver (DEN) to Saint Louis (STL) flights

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Select travel class
More United deals on Denver (DEN) to Saint Louis (STL) flights
From
To
Fare Type
Dates
Price
FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
07/09/25 - 07/15/25

from

$ 307*

Viewed: 55 minutes ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
06/03/25 - 06/05/25

from

$ 307*

Viewed: 2 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
07/09/25 - 07/14/25

from

$ 325*

Viewed: 7 minutes ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
04/25/25 - 04/27/25

from

$ 337*

Viewed: 1 hour ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
03/05/25 - 03/10/25

from

$ 282*

Viewed: 22 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
06/07/25 - 06/10/25

from

$ 307*

Viewed: 13 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
04/22/25 - 04/26/25

from

$ 307*

Viewed: 19 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
03/27/25 - 04/01/25

from

$ 307*

Viewed: 15 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
06/02/25 - 06/07/25

from

$ 307*

Viewed: 13 hours ago

FromDenver (DEN)ToSaint Louis (STL)Roundtrip
|
Economy
05/09/25 - 05/19/25

from

$ 355*

Viewed: 1 day 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.