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OSN to RDR: distance & flight time
Osan (Osan Air Base) → Red River (Grand Forks Air Force Base)
5,955 mi
9,584 km · 5,175 nm
12h 9m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→RDR fares Phone-only fares on this route — call free
Flight time details
5,955 miles nonstop takes roughly 12h 9m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- RDR — Grand Forks Air Force Base · Red River, 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 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
Near RDR
- GFK · Grand Forks International Airport10 mi away
- TVF · Thief River Falls Regional Airport57 mi away
- PMB · Pembina Municipal Airport68 mi away
- DVL · Devils Lake Regional Airport70 mi away
Frequently asked questions
How far is OSN from RDR?
The flight distance from Osan (OSN) to Red River (RDR) is 5,955 miles (9,584 km, 5,175 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to RDR?
A nonstop flight takes about 12h 9m 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 Osan and Red River?
Red River is 14 hours behind Osan.
What is the cheapest way to fly from OSN to RDR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–RDR that never appear on search engines, with no booking fees.