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MTN to ALN: distance & flight time
Baltimore (Martin State Airport) → Alton/St Louis (St Louis Regional Airport)
731 mi
1,176 km · 635 nm
2h 3m
estimated nonstop flight time
—
time difference · heading west
See live MTN→ALN fares Phone-only fares on this route — call free
Flight time details
731 miles nonstop takes roughly 2h 3m gate to gate, flying west. 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
- MTN — Martin State Airport · Baltimore, 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 MTN
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 MTN from ALN?
The flight distance from Baltimore (MTN) to Alton/St Louis (ALN) is 731 miles (1,176 km, 635 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from MTN to ALN?
A nonstop flight takes about 2h 3m 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 MTN to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on MTN–ALN that never appear on search engines, with no booking fees.