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UOS to ALN: distance & flight time
Sewanee (Franklin County Airport) → Alton/St Louis (St Louis Regional Airport)
342 mi
551 km · 297 nm
1h 22m
estimated nonstop flight time
—
time difference · heading northwest
See live UOS→ALN fares Phone-only fares on this route — call free
Flight time details
342 miles nonstop takes roughly 1h 22m 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
- UOS — Franklin County Airport · Sewanee, 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 UOS
- APT · Marion County Brown Field20 mi away
- CHA · Lovell Field41 mi away
- HUA · Redstone Army Air Field58 mi away
- HDI · Hardwick Field60 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 UOS from ALN?
The flight distance from Sewanee (UOS) to Alton/St Louis (ALN) is 342 miles (551 km, 297 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UOS to ALN?
A nonstop flight takes about 1h 22m 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 UOS to ALN?
Nonstop service on UOS–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 22m nonstop estimate.
What is the cheapest way to fly from UOS to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UOS–ALN that never appear on search engines, with no booking fees.
Why are some UOS to ALN fares phone-only?
Consolidator contracts let us sell certain UOS–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.