Denver to St Louis (DEN–STL) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
DEN–STL is served by 6 airlines with nonstop service. Southwest Airlines, United Airlines and Frontier lead the route. The flight covers 768 miles in approximately 2h. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| WN Southwest Airlines | 90 | 738, 73H, 7M8, 7S7, B38M | 1h54-2h20 | – | – | |
| UA United Airlines | 33 | 320, 738, E7W | 2h05-2h16 | Star Alliance | – | |
| F9 Frontier Also: Y4 | 6 | 32N | 2h13 | – | Y4 | |
| DL Delta Air Lines | 1 | – | – | SkyTeam | – | |
| KG Key Lime Air | 0 | – | – | – | – | |
| SY Sun Country Airlines | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach St Louis from Denver
| Metric | DEN→STL | BJC→STL | COS→STL |
|---|---|---|---|
| Distance from DEN | – | 24 mi | 73 mi |
| Nonstop airlines | 6 | 4 | 2 |
| Weekly flights | 136 | 1 | 1 |
| Flight time | 2h | 1h 44m | 1h 36m |
| Departure OTP | 100% | – | – |
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 Southwest Airlines, United Airlines, Frontier, Delta Air Lines, Key Lime Air and Sun Country Airlines. With 136 weekly departures, this is a heavily served route.
DEN to STL Flight Duration and Schedule
Nonstop flight time from DEN to STL is about 2 hours gate to gate. The route covers a distance of 768 miles (1,236 km). There are approximately 136 weekly flights outbound and 141 return, totaling 277 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Kansas City, Eppley Airfield and Chicago Midway. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Denver (BJC), Colorado Springs (COS) and Pueblo (PUB).