Seoul to Boston
14h 02m The flight from Incheon International Airport (ICN) to Boston Logan International Airport (BOS) covers 10,964 km (6,813 miles) and takes approximately 14h 02m gate to gate for a typical jet.
The route heads north on an initial great-circle bearing of 13°, passing near 79.4° N, 165.4° 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 56m | 20h 21m |
| Narrowbody jet (A320, 737) | 780 km/h | 14h 03m | 14h 29m |
| Widebody jet (777, 787, A350) | 900 km/h | 12h 11m | 12h 36m |
| Private jet (Gulfstream) | 850 km/h | 12h 54m | 13h 19m |
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 | BOS | |
|---|---|---|
| Airport | Incheon International Airport | Boston Logan International Airport |
| City | Seoul | Boston |
| Country | South Korea | United States |
| ICAO | RKSI | KBOS |
| Coordinates | 37.4691, 126.451 | 42.362, -71.0079 |
| Elevation | 23 ft | 20 ft |
Questions
How long is the flight from Seoul to Boston?
A non-stop flight from Seoul (ICN) to Boston (BOS) takes about 14h 02m. The great-circle distance is 10,964 km (6,813 miles, 5,920 nautical miles), flying north on an initial bearing of 13°.
How far is Seoul from Boston?
10,964 kilometres in a straight line over the earth's surface — 6,813 miles or 5,920 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 BOS?
This page calculates the direct-line time and distance; it does not track airline schedules. At 10,964 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 14h 02m 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.