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OSN to DPA: distance & flight time
Osan (Osan Air Base) → West Chicago (Dupage Airport)
6,543 mi
10,529 km · 5,685 nm
13h 18m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→DPA fares Phone-only fares on this route — call free
Flight time details
6,543 miles nonstop takes roughly 13h 18m 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
- DPA — Dupage Airport · West Chicago, 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 DPA
- ORD · Chicago O'Hare International Airport18 mi away
- LOT · Lewis University Airport22 mi away
- PWK · Chicago Executive Airport23 mi away
- MDW · Chicago Midway International Airport27 mi away
Frequently asked questions
How far is OSN from DPA?
The flight distance from Osan (OSN) to West Chicago (DPA) is 6,543 miles (10,529 km, 5,685 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to DPA?
A nonstop flight takes about 13h 18m 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 West Chicago?
West Chicago is 14 hours behind Osan.
What is the cheapest way to fly from OSN to DPA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–DPA that never appear on search engines, with no booking fees.