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OSN to CGX: distance & flight time
Osan (Osan Air Base) → Chicago (Chicago Meigs Airport)
6,561 mi
10,559 km · 5,701 nm
13h 20m
estimated nonstop flight time
-14h
time difference · heading northeast
See live OSN→CGX fares Phone-only fares on this route — call free
Flight time details
6,561 miles nonstop takes roughly 13h 20m 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
- CGX — Chicago Meigs Airport · 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 CGX
- ORD · Chicago O'Hare International Airport17 mi away
- MDW · Chicago Midway International Airport9 mi away
- GYY · Gary Chicago International Airport20 mi away
- PWK · Chicago Executive Airport23 mi away
Frequently asked questions
How far is OSN from CGX?
The flight distance from Osan (OSN) to Chicago (CGX) is 6,561 miles (10,559 km, 5,701 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from OSN to CGX?
A nonstop flight takes about 13h 20m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from OSN to CGX?
Nonstop service on OSN–CGX depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 13h 20m nonstop estimate.
What is the time difference between Osan and Chicago?
Chicago is 14 hours behind Osan.
What is the cheapest way to fly from OSN to CGX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on OSN–CGX that never appear on search engines, with no booking fees.
Why are some OSN to CGX fares phone-only?
Consolidator contracts let us sell certain OSN–CGX tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.