Denver to St Louis (DEN–STL) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
DEN–STL is served by 3 airlines with nonstop service. United Airlines, Southwest Airlines and Frontier lead the route. The flight covers 768 miles in approximately 1h 38m. Beyond nonstop, 122 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 47 | 319, 320, 738 | 2h07-2h12 | Star Alliance | – | |
| WN Southwest Airlines | 46 | 737, 738, 73H, 7M8, B38M | 1h53-2h25 | – | – | |
| F9 Frontier Also: Y4 | 7 | 32N | 2h12 | – | Y4 |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach St Louis from Denver
| Metric | DEN→STL | EGE→STL | ASE→STL |
|---|---|---|---|
| Distance from DEN | – | 120 mi | 125 mi |
| Nonstop airlines | 3 | 3 | 2 |
| Weekly flights | 108 | – | – |
| Flight time | 1h 38m | 0h 49m | 1h 3m |
| Departure OTP | 92% | – | – |
Travel Essentials
DEN: MDT · STL: CDT
When it's 6:00 PM in Denver, it's 7:00 PM in St Louis.
RTD A Line commuter rail runs from Denver Union Station to the airport (37 min, $10.50). Trains depart every 15 minutes during peak hours. The airport is 25 miles northeast of downtown; ride-shares cost $35–55 and take 30–45 minutes depending on I-70 traffic.Economy parking in lots 4–6 connects via free shuttle. Mountain shuttle services depart from Jeppesen Terminal's Ground Transportation level.
DEN–STL Quick Facts
Frequently Asked Questions
Flights from DEN to STL
Denver International Airport (DEN) and St. Louis Lambert International Airport (STL) are connected by nonstop service from Frontier, United Airlines and Southwest Airlines. With 108 weekly departures, this is a heavily served route.
DEN to STL Flight Duration and Schedule
Nonstop flight time from DEN to STL ranges from 1 hours 38 minutes to 2 hours 25 minutes. The route covers a distance of 768 miles (1,236 km). There are approximately 108 weekly flights outbound and 114 return, totaling 222 flights per week in both directions.
Connecting Options and Alternatives
122 one-stop connections are available, with the fastest taking approximately 3 hours via EGE. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Eagle (EGE) and Aspen (ASE).