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ACF to GAI: distance & flight time
Brisbane (Brisbane Archerfield Airport) → Gaithersburg (Montgomery County Airpark)
9,472 mi
15,244 km · 8,231 nm
19h 2m
estimated nonstop flight time
-14h
time difference · heading northeast
See live ACF→GAI fares Phone-only fares on this route — call free
Flight time details
9,472 miles nonstop takes roughly 19h 2m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- ACF — Brisbane Archerfield Airport · Brisbane, Australia
- GAI — Montgomery County Airpark · Gaithersburg, 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 ACF
- BNE · Brisbane International Airport14 mi away
- OOL · Gold Coast Airport51 mi away
- CUD · Caloundra Airport54 mi away
- MCY · Sunshine Coast Airport67 mi away
Near GAI
Frequently asked questions
How far is ACF from GAI?
The flight distance from Brisbane (ACF) to Gaithersburg (GAI) is 9,472 miles (15,244 km, 8,231 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ACF to GAI?
A nonstop flight takes about 19h 2m 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 Brisbane and Gaithersburg?
Gaithersburg is 14 hours behind Brisbane.
What is the cheapest way to fly from ACF to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ACF–GAI that never appear on search engines, with no booking fees.