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TOI to ALN: distance & flight time
Troy (Troy Municipal Airport at N Kenneth Campbell Field) → Alton/St Louis (St Louis Regional Airport)
536 mi
863 km · 466 nm
1h 38m
estimated nonstop flight time
—
time difference · heading northwest
See live TOI→ALN fares Phone-only fares on this route — call free
Flight time details
536 miles nonstop takes roughly 1h 38m 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
- TOI — Troy Municipal Airport at N Kenneth Campbell Field · Troy, 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 TOI
- MGM · Montgomery Regional (Dannelly Field) Airport38 mi away
- ETS · Enterprise Municipal Airport39 mi away
- MXF · Maxwell Air Force Base42 mi away
- OZR · Cairns AAF (Fort Rucker) Air Field44 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 TOI from ALN?
The flight distance from Troy (TOI) to Alton/St Louis (ALN) is 536 miles (863 km, 466 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from TOI to ALN?
A nonstop flight takes about 1h 38m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from TOI to ALN?
Nonstop service on TOI–ALN depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 1h 38m nonstop estimate.
What is the cheapest way to fly from TOI to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on TOI–ALN that never appear on search engines, with no booking fees.
Why are some TOI to ALN fares phone-only?
Consolidator contracts let us sell certain TOI–ALN tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.