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ALN to CSM: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Clinton (Clinton Sherman Airport)
561 mi
902 km · 487 nm
1h 41m
estimated nonstop flight time
—
time difference · heading southwest
See live ALN→CSM fares Phone-only fares on this route — call free
Flight time details
561 miles nonstop takes roughly 1h 41m gate to gate, flying southwest. 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
- CSM — Clinton Sherman Airport · Clinton, 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 CSM
- HBR · Hobart Regional Airport26 mi away
- LTS · Altus Air Force Base47 mi away
- FSI · Henry Post Army Air Field (Fort Sill)66 mi away
- LAW · Lawton Fort Sill Regional Airport69 mi away
Frequently asked questions
How far is ALN from CSM?
The flight distance from Alton/St Louis (ALN) to Clinton (CSM) is 561 miles (902 km, 487 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to CSM?
A nonstop flight takes about 1h 41m 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 CSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–CSM that never appear on search engines, with no booking fees.