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OSN to NXX: distance & flight time
Osan (Osan Air Base) → Willow Grove (Willow Grove Naval Air Station/Joint Reserve Base)
6,915 mi
11,128 km · 6,009 nm
14h 1m
estimated nonstop flight time
-13h
time difference · heading north
See live OSN→NXX fares Phone-only fares on this route — call free
Flight time details
6,915 miles nonstop takes roughly 14h 1m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time set-back when reading arrival times on your ticket.
The two airports
- OSN — Osan Air Base · Osan, South Korea
- NXX — Willow Grove Naval Air Station/Joint Reserve Base · Willow Grove, 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 NXX
- PHL · Philadelphia International Airport23 mi away
- BBX · Wings Field8 mi away
- DYL · Doylestown Airport9 mi away
- PNE · Northeast Philadelphia Airport11 mi away
Frequently asked questions
How far is OSN from NXX?
The flight distance from Osan (OSN) to Willow Grove (NXX) is 6,915 miles (11,128 km, 6,009 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to NXX?
A nonstop flight takes about 14h 1m 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 Willow Grove?
Willow Grove is 13 hours behind Osan.
What is the cheapest way to fly from OSN to NXX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–NXX that never appear on search engines, with no booking fees.