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GAI to BTM: distance & flight time
Gaithersburg (Montgomery County Airpark) → Butte (Bert Mooney Airport)
1,842 mi
2,964 km · 1,600 nm
4h 5m
estimated nonstop flight time
-2h
time difference · heading northwest
See live GAI→BTM fares Phone-only fares on this route — call free
Flight time details
1,842 miles nonstop takes roughly 4h 5m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2-hour time set-back when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- BTM — Bert Mooney Airport · Butte, 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 GAI
Near BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Frequently asked questions
How far is GAI from BTM?
The flight distance from Gaithersburg (GAI) to Butte (BTM) is 1,842 miles (2,964 km, 1,600 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to BTM?
A nonstop flight takes about 4h 5m 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 time difference between Gaithersburg and Butte?
Butte is 2 hours behind Gaithersburg.
What is the cheapest way to fly from GAI to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–BTM that never appear on search engines, with no booking fees.