Cahokia/St Louis to Denver (CPS–DEN) — 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.
CPS–DEN had nonstop service from United Airlines, Air Canada and Sun Country Airlines, last on the schedule in May 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 781 miles in 2h 35m.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 1 | – | – | – | Star Alliance | – |
| AC Air Canada | 0 | – | – | – | Star Alliance | – |
| SY Sun Country Airlines | 0 | – | – | – | – | – |
Connection Landscape
On-Time Performance
Other ways to reach Denver from Cahokia/St Louis
| Metric | CPS→DEN | STL→DEN | COU→DEN |
|---|---|---|---|
| Distance from CPS | – | 17 mi | 113 mi |
| Nonstop airlines | – | 5 | 2 |
| Weekly flights | – | 97 | 7 |
| Flight time | 2h 35m | 2h 7m | 2h 21m |
Travel Essentials
CPS: CDT · DEN: MDT
When it's 6:00 PM in Cahokia/St Louis, it's 5:00 PM in Denver.
RTD A Line runs to Denver Union Station (37 min, $10.50) with connections to light rail and bus routes. Taxis have meters; expect $55–65 to downtown.DEN's tent-roof Jeppesen Terminal is a single building; all three concourses connect via the underground automated train. Rental cars are on level 5. For ski resorts, shuttle services depart from Ground Transportation.
Semi-arid with 300+ days of sunshine. Summers are dry and warm (27–34°C) with afternoon thunderstorms that produce dramatic but brief delays. Winters bring cold temperatures (−8 to 5°C) and heavy blizzards that can shut down ground operations.
Spring snowstorms can be heavier than midwinter ones. Altitude (5,430 ft) means low humidity year-round; stay hydrated.
CPS–DEN Quick Facts
Frequently Asked Questions
Flights from CPS to DEN
St Louis Downtown Airport (CPS) and Denver International Airport (DEN) had nonstop service from United Airlines, Air Canada and Sun Country Airlines, last on the schedule in May 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.
CPS to DEN Flight Duration and Schedule
Nonstop flight time from CPS to DEN is about 2 hours 35 minutes gate to gate. The route covers a distance of 781 miles (1,257 km).
Connecting Options and Alternatives
1-stop connecting options are also available. Nearby alternative airports include St Louis (STL) and Columbia (COU).