Seoul to San Diego
12h 36m The flight from Incheon International Airport (ICN) to San Diego International Airport (SAN) covers 9,800 km (6,090 miles) and takes approximately 12h 36m gate to gate for a typical jet.
The route heads north-east on an initial great-circle bearing of 49°, passing near 53.1° N, 172.7° 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 | 17h 49m | 18h 14m |
| Narrowbody jet (A320, 737) | 780 km/h | 12h 34m | 12h 59m |
| Widebody jet (777, 787, A350) | 900 km/h | 10h 53m | 11h 19m |
| Private jet (Gulfstream) | 850 km/h | 11h 32m | 11h 57m |
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
| ICN | SAN | |
|---|---|---|
| Airport | Incheon International Airport | San Diego International Airport |
| City | Seoul | San Diego |
| Country | South Korea | United States |
| ICAO | RKSI | KSAN |
| Coordinates | 37.4691, 126.451 | 32.7336, -117.19 |
| Elevation | 23 ft | 17 ft |
Questions
How long is the flight from Seoul to San Diego?
A non-stop flight from Seoul (ICN) to San Diego (SAN) takes about 12h 36m. The great-circle distance is 9,800 km (6,090 miles, 5,292 nautical miles), flying north-east on an initial bearing of 49°.
How far is Seoul from San Diego?
9,800 kilometres in a straight line over the earth's surface — 6,090 miles or 5,292 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 ICN and SAN?
This page calculates the direct-line time and distance; it does not track airline schedules. At 9,800 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.
What should I expect on a 12h 36m 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.