CheapoTrav
Call

Need help booking?

Unpublished phone-only deals available

1 (815) 473-8090

ALN to STL: distance & flight time

Alton/St Louis (St Louis Regional Airport) → St. Louis (St Louis Lambert International Airport)

20 mi
32 km · 17 nm
31m
estimated nonstop flight time
—
time difference · heading southwest
See live ALN→STL fares Phone-only fares on this route — call free

Flight time details

20 miles nonstop takes roughly 31m 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.

Track a live flight on this route →

The two airports

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.

Compare ALN–STL against every nearby airport — free on one call:

Frequently asked questions

How far is ALN from STL?

The flight distance from Alton/St Louis (ALN) to St. Louis (STL) is 20 miles (32 km, 17 nautical miles), measured along the great-circle route airlines actually fly.

How long is the flight from ALN to STL?

A nonstop flight takes about 31m 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 STL?

Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–STL that never appear on search engines, with no booking fees.
Keep exploring:STL to ALN Airports near ALN Airports near STL Time difference ALN–STL Distance calculator