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RIW to OSN: distance & flight time
Riverton WY (Riverton Regional Airport) → Osan (Osan Air Base)
5,895 mi
9,487 km · 5,123 nm
12h 2m
estimated nonstop flight time
+15h
time difference · heading northwest
See live RIW→OSN fares Phone-only fares on this route — call free
Flight time details
5,895 miles nonstop takes roughly 12h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- RIW — Riverton Regional Airport · Riverton WY, 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 RIW
- LND · Hunt Field22 mi away
- WRL · Worland Municipal Airport67 mi away
- PWY · Ralph Wenz Field71 mi away
- BPI · Miley Memorial Field90 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 RIW from OSN?
The flight distance from Riverton WY (RIW) to Osan (OSN) is 5,895 miles (9,487 km, 5,123 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RIW to OSN?
A nonstop flight takes about 12h 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 Riverton WY and Osan?
Osan is 15 hours ahead of Riverton WY.
What is the cheapest way to fly from RIW to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RIW–OSN that never appear on search engines, with no booking fees.