Flights Seattle → Seoul
SEA → ICN
How long is the flight from Seattle to Seoul?
The flight from Seattle (SEA) to Seoul (ICN) takes 11h 12m 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 Seattle with Seoul, operating with a mix of aircraft including the Boeing 777-200, Boeing 777-300ER, and Airbus A330-300. The destination airport in Seoul sees over seventeen million passengers annually, underscoring its significance as a major hub for air travel.
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 Seattle (SEA) → Seoul (ICN) route is operated by Delta Air Lines, United Airlines. Across 12 flights monitored in recent months, 100% arrived on time (within 15 min of schedule), with an average delay of 1 minutes. The cancellation rate is 0.00%. FlightGuard's average computed risk is 14.9/100 (low), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Seoul the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Seattle the average ATFM delay is 5.5 minutes.
Heading to Seoul: what to expect in this direction
Flying from Seattle (SEA) to Seoul (ICN) heads north-west for about 8,373 km, a flight time of roughly 11h 12m.
Departures from Seattle on this leg cluster in the midday window: about 100% of SEA-ICN flights take off then.
Air-traffic congestion: departing Seattle the average ATFM delay is 5.5 min (atfm); arriving into Seoul it is 2.0 min (atfm).
Across 12 tracked SEA-ICN flights, 100% left on time with an average delay of 1 min and a 0.0% cancellation rate.
Route facts
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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 SEA-ICN
Airports
Frequently asked questions about SEA-ICN
The flight from Seattle (SEA) to Seoul (ICN) takes 11h 12m 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 Seattle (SEA) -> Seoul (ICN) route, on-time performance is 100% with an average delay of 1 minutes, based on 12 tracked flights.
The cancellation rate on Seattle-Seoul 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 Seoul, 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.
