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OSN to MSW: distance & flight time
Osan (Osan Air Base) → Massawa (Massawa International Airport)
5,445 mi
8,762 km · 4,731 nm
11h 9m
estimated nonstop flight time
-6h
time difference · heading west
See live OSN→MSW fares Phone-only fares on this route — call free
Flight time details
5,445 miles nonstop takes roughly 11h 9m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- MSW — Massawa International Airport · Massawa, Eritrea
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 MSW
- ASM · Asmara International Airport40 mi away
- AXU · Axum Airport113 mi away
Frequently asked questions
How far is OSN from MSW?
The flight distance from Osan (OSN) to Massawa (MSW) is 5,445 miles (8,762 km, 4,731 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to MSW?
A nonstop flight takes about 11h 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 Massawa?
Massawa is 6 hours behind Osan.
What is the cheapest way to fly from OSN to MSW?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–MSW that never appear on search engines, with no booking fees.