Need help booking?
Unpublished phone-only deals available
NMS to OSN: distance & flight time
Namsang (Namsang Airport) → Osan (Osan Air Base)
2,081 mi
3,349 km · 1,808 nm
4h 33m
estimated nonstop flight time
+2.5h
time difference · heading northeast
See live NMS→OSN fares Phone-only fares on this route — call free
Flight time details
2,081 miles nonstop takes roughly 4h 33m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 2.5-hour time gain when reading arrival times on your ticket.
The two airports
- NMS — Namsang Airport · Namsang, Burma
- 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 NMS
- HEH · Heho Airport62 mi away
- LIW · Loikaw Airport89 mi away
- MOG · Mong Hsat Airport102 mi away
- HGN · Mae Hong Son Airport111 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 NMS from OSN?
The flight distance from Namsang (NMS) to Osan (OSN) is 2,081 miles (3,349 km, 1,808 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from NMS to OSN?
A nonstop flight takes about 4h 33m 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 Namsang and Osan?
Osan is 2.5 hours ahead of Namsang.
What is the cheapest way to fly from NMS to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on NMS–OSN that never appear on search engines, with no booking fees.