Flights Seoul → Seattle
ICN → SEA
How long is the flight from Seoul to Seattle?
The flight from Seoul (ICN) to Seattle (SEA) takes 10h 4m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route connects Seoul with Seattle, operating with a mix of aircraft including the Boeing 777-200, Boeing 777-300ER, and Airbus A330-300. The destination airport in Seattle sees an annual passenger traffic of over 52 million passengers, indicating high demand and connectivity for this route.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Seoul (ICN) → Seattle (SEA) route is operated by Delta Air Lines, United Airlines. Across 12 flights monitored in recent months, 73% arrived on time (within 15 min of schedule), with an average delay of 8 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 16.6/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Seattle the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Seoul the average ATFM delay is 2.0 minutes.
Heading to Seattle: what to expect in this direction
Flying from Seoul (ICN) to Seattle (SEA) heads north-east for about 8,373 km, a flight time of roughly 10h 4m.
Departures from Seoul on this leg cluster in the evening window: about 100% of ICN-SEA flights take off then.
Air-traffic congestion: departing Seoul the average ATFM delay is 2.0 min (atfm); arriving into Seattle it is 5.5 min (atfm).
Across 12 tracked ICN-SEA flights, 73% left on time with an average delay of 8 min and a 0.0% cancellation rate.
Route facts
Flexible on this trip? Compare flights
Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Delta Air Lines (DL) | 85% | 1 min | 0.8% |
| United Airlines (UA) | 83% | 5 min | 1.3% |
Airlines operating ICN-SEA
Airports
Frequently asked questions about ICN-SEA
The flight from Seoul (ICN) to Seattle (SEA) takes 10h 4m on average. That is the median time recorded across 1 scheduled flight on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Seoul (ICN) -> Seattle (SEA) route, on-time performance is 73% with an average delay of 8 minutes, based on 12 tracked flights.
The cancellation rate on Seoul-Seattle is 0.00% across 12 monitored flights.
The route is operated by 2 airlines: Delta Air Lines, United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Seattle, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
