Need help booking?
Unpublished phone-only deals available
ALN to BUF: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Buffalo (Buffalo Niagara International Airport)
653 mi
1,051 km · 567 nm
1h 53m
estimated nonstop flight time
—
time difference · heading northeast
See live ALN→BUF fares Phone-only fares on this route — call free
Flight time details
653 miles nonstop takes roughly 1h 53m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- BUF — Buffalo Niagara International Airport · Buffalo, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near ALN
- STL · St Louis Lambert International Airport20 mi away
- BLV · Scott AFB/Midamerica Airport26 mi away
- SUS · Spirit of St Louis Airport36 mi away
- SPI · Abraham Lincoln Capital Airport69 mi away
Near BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 mi away
Frequently asked questions
How far is ALN from BUF?
The flight distance from Alton/St Louis (ALN) to Buffalo (BUF) is 653 miles (1,051 km, 567 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to BUF?
A nonstop flight takes about 1h 53m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from ALN to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–BUF that never appear on search engines, with no booking fees.