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Flight distance & time
St Louis Regional Airport → Buffalo Niagara International Airport
ALNBUF
- Distance
- 1,050 km · 652 mi
- Flight time
- 02h 03m
- CO₂ per passenger
- 94 kg
This St Louis Regional Airport → Buffalo Niagara International Airport route is 1,050 km (652 mi) end to end. The estimated flight time is 02h 03m, and a passenger's share of CO₂ works out at roughly 94 kg.
See the reverse route: Buffalo Niagara International Airport → St Louis Regional Airport
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Your route
- FromALNSt Louis Regional AirportAlton/St Louis, Illinois
- ToBUFBuffalo Niagara International AirportBuffalo, New York
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 Regional Airport to Buffalo Niagara International Airport FAQ
How far is St Louis Regional Airport from Buffalo Niagara International Airport?
St Louis Regional Airport (ALN) and Buffalo Niagara International Airport (BUF) are 1,050 km (652 mi) apart, measured along the great-circle route.
How long is the flight from St Louis Regional Airport to Buffalo Niagara International Airport?
A direct ALN–BUF flight covers the distance in about 02h 03m, though the exact time shifts with aircraft type and winds.
How much CO₂ does a flight from St Louis Regional Airport to Buffalo Niagara International Airport produce?
A passenger's share of CO₂ on the ALN–BUF route is roughly 94 kg.
Flight distance and time are estimates for ideal conditions — actual figures vary with aircraft type, routing and weather.
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