Chicago to Seoul
13h 28m The flight from Chicago O'Hare International Airport (ORD) to Seoul Gimpo International Airport (GMP) covers 10,497 km (6,523 miles) and takes approximately 13h 28m gate to gate for a typical jet.
The route heads north-west on an initial great-circle bearing of 333°, passing near 70.2° N, 166.4° W at its midpoint.
The route
The great-circle path — the shortest line between the two airports across the curve of the earth. On a flat map it looks bent; on a globe it is straight.
Flight time at different cruise speeds
Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.
| Typical of | Cruise speed | Airborne | Gate to gate |
|---|---|---|---|
| Turboprop / regional | 550 km/h | 19h 05m | 19h 30m |
| Narrowbody jet (A320, 737) | 780 km/h | 13h 27m | 13h 53m |
| Widebody jet (777, 787, A350) | 900 km/h | 11h 40m | 12h 05m |
| Private jet (Gulfstream) | 850 km/h | 12h 21m | 12h 46m |
Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.
Both airports
| ORD | GMP | |
|---|---|---|
| Airport | Chicago O'Hare International Airport | Seoul Gimpo International Airport |
| City | Chicago | Seoul |
| Country | United States | South Korea |
| ICAO | KORD | RKSS |
| Coordinates | 41.9786, -87.9048 | 37.5583, 126.791 |
| Elevation | 680 ft | 59 ft |
Questions
How long is the flight from Chicago to Seoul?
A non-stop flight from Chicago (ORD) to Seoul (GMP) takes about 13h 28m. The great-circle distance is 10,497 km (6,523 miles, 5,668 nautical miles), flying north-west on an initial bearing of 333°.
How far is Chicago from Seoul?
10,497 kilometres in a straight line over the earth's surface — 6,523 miles or 5,668 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.
Is there a non-stop flight between ORD and GMP?
This page calculates the direct-line time and distance; it does not track airline schedules. At 10,497 km the route is within reach of long-range widebodies, though not every city pair is served non-stop. Check an airline or booking site for what is actually scheduled.
What should I expect on a 13h 28m flight?
Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.
Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.