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RST to OSN: distance & flight time
Rochester (Rochester International Airport) → Osan (Osan Air Base)
6,317 mi
10,167 km · 5,490 nm
12h 51m
estimated nonstop flight time
+14h
time difference · heading northwest
See live RST→OSN fares Phone-only fares on this route — call free
Flight time details
6,317 miles nonstop takes roughly 12h 51m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time gain when reading arrival times on your ticket.
The two airports
- RST — Rochester International Airport · Rochester, United States
- 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 RST
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 RST from OSN?
The flight distance from Rochester (RST) to Osan (OSN) is 6,317 miles (10,167 km, 5,490 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RST to OSN?
A nonstop flight takes about 12h 51m 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 Rochester and Osan?
Osan is 14 hours ahead of Rochester.
What is the cheapest way to fly from RST to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RST–OSN that never appear on search engines, with no booking fees.