Flying Delta Air Lines from SEA (Seattle) to ICN (Seoul-Incheon): Route Insights | Borderly

• Delta Air Lines(Delta Air Lines typically operates daily nonstop flights on the SEA-ICN route.)
• Korean Air(Korean Air also offers daily nonstop service between Seattle and Seoul-Incheon.)
• Asiana Airlines(Asiana Airlines provides daily nonstop flights connecting SEA and ICN.)
• Hawaiian Airlines(Hawaiian Airlines is scheduled to begin nonstop service on this route starting September 2025.)

The best time to fly from Seattle to Seoul often depends on a balance of weather and cost. Generally, shoulder seasons like spring (April-May) and fall (September-October) offer pleasant temperatures in Seoul and potentially lower airfares compared to peak summer months. September is often cited as a cheaper month for flights. Booking about 40 days in advance may also yield better prices. Consider major Korean holidays like Chuseok (Korean Thanksgiving, typically in September or October) when planning, as demand can be higher.

• Book in Advance: Especially during peak seasons or holidays, booking your Delta flight from Seattle to Seoul well in advance is recommended to secure better fares and seat availability.

• Prepare for a Long Flight: With a flight time of nearly 12 hours, pack essentials for comfort such as a neck pillow, entertainment, and any necessary medications.

• Arrival in Incheon: Incheon International Airport (ICN) is located about an hour from Seoul. Plan your transportation to the city center in advance (e.g., AREX train, bus, or taxi).

• Manage Jet Lag: The time difference between Seattle and Seoul is significant (Seoul is 16 hours ahead). Try to adjust your sleep schedule gradually. Staying hydrated and trying to sleep on the plane according to Seoul's local time can help.

• Currency and Connectivity: Ensure you have some South Korean Won (KRW) upon arrival or a plan to exchange currency. Consider getting a local SIM card or an international data plan for connectivity.

Leaderboard details coming soon.