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OSF to OSN: distance & flight time
Moscow (Ostafyevo International Airport) → Osan (Osan Air Base)
4,142 mi
6,665 km · 3,599 nm
8h 35m
estimated nonstop flight time
+6h
time difference · heading northeast
See live OSF→OSN fares Phone-only fares on this route — call free
Flight time details
4,142 miles nonstop takes roughly 8h 35m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- OSF — Ostafyevo International Airport · Moscow, Russia
- OSN — Osan Air Base · Osan, South Korea
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 OSF
- VKO · Vnukovo International Airport11 mi away
- DME · Domodedovo International Airport17 mi away
- BKA · Bykovo Airport23 mi away
- ZIA · Zhukovsky International Airport25 mi away
Near OSN
- ICN · Incheon International Airport41 mi away
- SWU · Suwon Airport10 mi away
- SSN · Seoul Air Base (K-16)25 mi away
- GMP · Gimpo International Airport35 mi away
Frequently asked questions
How far is OSF from OSN?
The flight distance from Moscow (OSF) to Osan (OSN) is 4,142 miles (6,665 km, 3,599 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSF to OSN?
A nonstop flight takes about 8h 35m 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 Moscow and Osan?
Osan is 6 hours ahead of Moscow.
What is the cheapest way to fly from OSF to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSF–OSN that never appear on search engines, with no booking fees.