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ISM to ALN: distance & flight time
Kissimmee (Kissimmee Gateway Airport) → Alton/St Louis (St Louis Regional Airport)
883 mi
1,422 km · 768 nm
2h 23m
estimated nonstop flight time
—
time difference · heading northwest
See live ISM→ALN fares Phone-only fares on this route — call free
Flight time details
883 miles nonstop takes roughly 2h 23m gate to gate, flying northwest. 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
- ISM — Kissimmee Gateway Airport · Kissimmee, United States
- ALN — St Louis Regional Airport · Alton/St Louis, 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 ISM
- MCO · Orlando International Airport12 mi away
- ORL · Orlando Executive Airport19 mi away
- GIF · Winter Haven Regional Airport - Gilbert Field25 mi away
- TPA · Tampa International Airport70 mi away
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
Frequently asked questions
How far is ISM from ALN?
The flight distance from Kissimmee (ISM) to Alton/St Louis (ALN) is 883 miles (1,422 km, 768 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISM to ALN?
A nonstop flight takes about 2h 23m 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 ISM to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISM–ALN that never appear on search engines, with no booking fees.