Need help booking?
Unpublished phone-only deals available
FBU to GAI: distance & flight time
Oslo (Oslo, Fornebu Airport) → Gaithersburg (Montgomery County Airpark)
3,858 mi
6,210 km · 3,353 nm
8h 2m
estimated nonstop flight time
-6h
time difference · heading west
See live FBU→GAI fares Phone-only fares on this route — call free
Flight time details
3,858 miles nonstop takes roughly 8h 2m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- FBU — Oslo, Fornebu Airport · Oslo, Norway
- 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 FBU
- OSL · Oslo Lufthavn22 mi away
- RYG · Moss Airport, Rygge36 mi away
- TRF · Sandefjord Airport, Torp51 mi away
- NTB · Notodden Airport54 mi away
Near GAI
Frequently asked questions
How far is FBU from GAI?
The flight distance from Oslo (FBU) to Gaithersburg (GAI) is 3,858 miles (6,210 km, 3,353 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FBU to GAI?
A nonstop flight takes about 8h 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 Oslo and Gaithersburg?
Gaithersburg is 6 hours behind Oslo.
What is the cheapest way to fly from FBU to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FBU–GAI that never appear on search engines, with no booking fees.