New calculation
Flight distance & time
St Louis Downtown Airport → Blue Grass Airport
CPSLEX
- Distance
- 487 km · 302 mi
- Flight time
- 01h 21m
- CO₂ per passenger
- 43 kg
This St Louis Downtown Airport → Blue Grass Airport route is 487 km (302 mi) end to end. The estimated flight time is 01h 21m, and a passenger's share of CO₂ works out at roughly 43 kg.
See the reverse route: Blue Grass Airport → St Louis Downtown Airport
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Your route
- FromCPSSt Louis Downtown AirportCahokia/St Louis, Illinois
- ToLEXBlue Grass AirportLexington, Kentucky
Flight map
Track your lifetime distance flown across every trip.
Route service
We don't have scheduled-service data for this route — it may be operated by non-commercial or charter flights only.
Common questions
St Louis Downtown Airport to Blue Grass Airport FAQ
How far is St Louis Downtown Airport from Blue Grass Airport?
St Louis Downtown Airport (CPS) and Blue Grass Airport (LEX) are 487 km (302 mi) apart, measured along the great-circle route.
How long is the flight from St Louis Downtown Airport to Blue Grass Airport?
A direct CPS–LEX flight covers the distance in about 01h 21m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from St Louis Downtown Airport to Blue Grass Airport produce?
A passenger's share of CO₂ on the CPS–LEX route is roughly 43 kg.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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