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Cheapest flights for Denver – Saint Louis (DEN – STL)

Aviasales.ge will find you the cheapest airfare for Denver – Saint Louis by comparing the ticket prices to Saint Louis using 45 agencies, five booking systems, and 728 airlines. Where exactly you buy your tickets for Denver – Saint Louis is up to you.

Denver – Saint Louis is most popular in April. During this period the average ticket price is 1 449.

Direct flight for from Denver to Saint Louis

The easiest way to to get to your destination is a direct flight. Direct flights for from Denver to Saint Louis are offered by:

  • United Airlines (daily UA525)
  • Frontier Airlines (4 days per week, flight F93302)
  • Southwest Airlines (3 days per week, flight WN319)

Louis is served by 2 airports: Spirit of St. Louis Airport and Lambert-St. Louis International Airport. Direct flights for Denver – Saint Louis are operated by:
  • Southwest Airlines, United Airlines, Frontier Airlines from Denver International Airport to Lambert-St. Louis International Airport
Flight with layover for the route from Denver to Saint Louis

A flight with a layover on the route Denver – Saint Louis will allow you to make your trip more interesting. The layover could be in:

  • Kansas City (flight WN2536 Southwest Airlines)
  • Nashville (flight WN1319 Southwest Airlines)
  • Dallas (flight WN1896 Southwest Airlines)

This is a great chance to get to know these cities. Layovers are usually at least six hours.

Please keep in mind that depending on the number of days remaining until your departure, ticket prices for Denver – Saint Louis could change by more than 120%.

Aviasales.ge suggests buying tickets for Denver – Saint Louis in advance in order to choose the conditions for your flight that best suit your preferences and budget.

General information on flight Denver – Saint Louis (DEN – STL)
1,278 km
Distance
1 ⁠hr
Current time difference
87
Number of flights per week
Average ticket price
06:00
Earliest flight out
21:40
Latest flight out

Ticket prices for Denver – Saint Louis by month *

Month One-way Round-trip
April 2025 01.04.2025
29.04 - 30.04.2025

* Prices found by users over the last 48 hours (they do not represent an offer).

Cheapest flight for from Denver to Saint Louis found by our users over the last 48 hours: ticket with Frontier Airlines with a departure on 29.04.2025 and a price of 1 449 GEL.
Airlines flying from Denver to Saint Louis
Airports serving Denver – Saint Louis

Denver airports serving flights to Saint Louis:

  • Denver International Airport (DEN)

Saint Louis airports accepting flights from Denver:

  • Lambert-St. Louis International Airport (STL)