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RST to ALN: distance & flight time
Rochester (Rochester International Airport) → Alton/St Louis (St Louis Regional Airport)
369 mi
594 km · 321 nm
1h 26m
estimated nonstop flight time
—
time difference · heading south
See live RST→ALN fares Phone-only fares on this route — call free
Flight time details
369 miles nonstop takes roughly 1h 26m gate to gate, flying south. 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
- RST — Rochester International Airport · Rochester, 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 RST
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 RST from ALN?
The flight distance from Rochester (RST) to Alton/St Louis (ALN) is 369 miles (594 km, 321 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RST to ALN?
A nonstop flight takes about 1h 26m 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 RST to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RST–ALN that never appear on search engines, with no booking fees.