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ALN to ATY: distance & flight time
Alton/St Louis (St Louis Regional Airport) → Watertown (Watertown Regional Airport)
554 mi
891 km · 481 nm
1h 40m
estimated nonstop flight time
—
time difference · heading northwest
See live ALN→ATY fares Phone-only fares on this route — call free
Flight time details
554 miles nonstop takes roughly 1h 40m 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
- ALN — St Louis Regional Airport · Alton/St Louis, United States
- ATY — Watertown Regional Airport · Watertown, 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 ATY
- HON · Huron Regional Airport64 mi away
- ABR · Aberdeen Regional Airport72 mi away
- MHE · Mitchell Municipal Airport90 mi away
- FSD · Joe Foss Field Airport94 mi away
Frequently asked questions
How far is ALN from ATY?
The flight distance from Alton/St Louis (ALN) to Watertown (ATY) is 554 miles (891 km, 481 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ALN to ATY?
A nonstop flight takes about 1h 40m 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 ATY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ALN–ATY that never appear on search engines, with no booking fees.