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BZN to ALN: distance & flight time
Bozeman (Gallatin Field) → Alton/St Louis (St Louis Regional Airport)
1,174 mi
1,889 km · 1,020 nm
3h 1m
estimated nonstop flight time
—
time difference · heading east
See live BZN→ALN fares Phone-only fares on this route — call free
Flight time details
1,174 miles nonstop takes roughly 3h 1m gate to gate, flying east. 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
- BZN — Gallatin Field · Bozeman, 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 BZN
- LVM · Mission Field34 mi away
- BTM · Bert Mooney Airport66 mi away
- HLN · Helena Regional Airport70 mi away
- WYS · Yellowstone Airport75 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 BZN from ALN?
The flight distance from Bozeman (BZN) to Alton/St Louis (ALN) is 1,174 miles (1,889 km, 1,020 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BZN to ALN?
A nonstop flight takes about 3h 1m 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 BZN to ALN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BZN–ALN that never appear on search engines, with no booking fees.