Year-round direct route · 1,236 km
St Louis (STL) to Denver (DEN)
Nonstop service operated by Frontier Airlines, United Express. Around 2h 08m gate to gate over 1,236 km (768 mi).
Route facts
| Airlines | Frontier Airlines, United Express |
| Service | Year-round |
| Distance | 1,236 km / 768 mi |
| Est. flight time | about 2h 08m |
| Return direction | DEN to STL |
Times are estimates from distance; days of operation and schedules change. Verify with the airline before booking.
STL · St. Louis Lambert International Airport
St Louis, United States