Need help booking?
Unpublished phone-only deals available
OIM to GAI: distance & flight time
Oshima (Oshima Airport) → Gaithersburg (Montgomery County Airpark)
6,820 mi
10,976 km · 5,926 nm
13h 50m
estimated nonstop flight time
-13h
time difference · heading northeast
See live OIM→GAI fares Phone-only fares on this route — call free
Flight time details
6,820 miles nonstop takes roughly 13h 50m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OIM — Oshima Airport · Oshima, Japan
- 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 OIM
- HND · Tokyo Haneda International Airport58 mi away
- NJA · Atsugi Naval Air Facility47 mi away
- NRT · Narita International Airport89 mi away
- MYE · Miyakejima Airport50 mi away
Near GAI
Frequently asked questions
How far is OIM from GAI?
The flight distance from Oshima (OIM) to Gaithersburg (GAI) is 6,820 miles (10,976 km, 5,926 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OIM to GAI?
A nonstop flight takes about 13h 50m 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 Oshima and Gaithersburg?
Gaithersburg is 13 hours behind Oshima.
What is the cheapest way to fly from OIM to GAI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OIM–GAI that never appear on search engines, with no booking fees.