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BOI to OSN: distance & flight time
Boise (Boise Air Terminal/Gowen Field) → Osan (Osan Air Base)
5,600 mi
9,013 km · 4,867 nm
11h 27m
estimated nonstop flight time
+15h
time difference · heading northwest
See live BOI→OSN fares Phone-only fares on this route — call free
Flight time details
5,600 miles nonstop takes roughly 11h 27m 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
- BOI — Boise Air Terminal/Gowen Field · Boise, 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 BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 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 BOI from OSN?
The flight distance from Boise (BOI) to Osan (OSN) is 5,600 miles (9,013 km, 4,867 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOI to OSN?
A nonstop flight takes about 11h 27m 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 Boise and Osan?
Osan is 15 hours ahead of Boise.
What is the cheapest way to fly from BOI to OSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOI–OSN that never appear on search engines, with no booking fees.