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KLF to OSN: distance & flight time
Kaluga (Grabtsevo Airport) → Osan (Osan Air Base)
4,210 mi
6,775 km · 3,658 nm
8h 43m
estimated nonstop flight time
+6h
time difference · heading northeast
See live KLF→OSN fares Phone-only fares on this route — call free
Flight time details
4,210 miles nonstop takes roughly 8h 43m 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
- KLF — Grabtsevo Airport · Kaluga, 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 KLF
- VKO · Vnukovo International Airport80 mi away
- OSF · Ostafyevo International Airport80 mi away
- DME · Domodedovo International Airport85 mi away
- ZIA · Zhukovsky International Airport99 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 KLF from OSN?
The flight distance from Kaluga (KLF) to Osan (OSN) is 4,210 miles (6,775 km, 3,658 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLF to OSN?
A nonstop flight takes about 8h 43m 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 Kaluga and Osan?
Osan is 6 hours ahead of Kaluga.
What is the cheapest way to fly from KLF to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLF–OSN that never appear on search engines, with no booking fees.