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. Southwest Airlines, United Airlines and Frontier lead the route. The flight covers 768 miles in approximately 0h 55m. Beyond nonstop, 89 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| WN Southwest Airlines | 88 | 738, 73H, 7M8, 7S7 | 0h55-2h25 | – | – | |
| UA United Airlines | 26 | 319, 320, 739, E75L | 1h18-2h14 | Star Alliance | – | |
| F9 Frontier | 7 | 32Q | 2h14 | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
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 | 1 |
| Weekly flights | 121 | 1 | 1 |
| Flight time | 0h 55m | 1h 9m | 1h |
| Departure OTP | 87% | – | – |
Travel Essentials
DEN: MDT · STL: EDT
When it's 6:00 PM in Denver, it's 8:00 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 121 weekly departures, this is a heavily served route.
DEN to STL Flight Duration and Schedule
Nonstop flight time from DEN to STL ranges from 0 hours 55 minutes to 2 hours 25 minutes. The route covers a distance of 768 miles (1,236 km). There are approximately 121 weekly flights outbound and 149 return, totaling 270 flights per week in both directions.
Connecting Options and Alternatives
89 one-stop connections are available, with the fastest taking approximately 2 hours via RIL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Eagle (EGE) and Aspen (ASE).