Seattle to Seoul (SEA–GMP) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Last scheduled nonstop: May 2026.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
SEA–GMP had nonstop service from Korean Air, last on the schedule in May 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 5,186 miles in 11h 25m.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| KE Korean Air | 0 | – | – | SkyTeam | – |
Connection Landscape
On-Time Performance
Travel Essentials
SEA: PDT · GMP: KST
When it's 6:00 PM in Seattle, it's 10:00 AM (next day) in Seoul.
US passport holders enter South Korea visa-free for up to 90 days under the K-ETA (Korea Electronic Travel Authorization) exemption. As of early 2026, the K-ETA requirement is waived for US citizens through December 2025 (check for extensions beyond this date). When the K-ETA is required, apply at k-eta.go.kr at least 72 hours before travel for KRW 10,000 (about $7). Passport must be valid for at least 6 months beyond the date of entry. At Incheon International Airport (ICN), immigration uses automated gates for repeat visitors or stamps your passport at the counter.
South Korea counts the 90 days from entry, not cumulatively within a period, so you can exit and re-enter for a fresh 90 days. Incheon Airport consistently ranks among the world's best: free showers, a Korean culture center, an ice skating rink, and transit hotels are all inside the terminals. The KTX high-speed train connects Seoul to Busan in 2 hours 15 minutes, Daejeon in 50 minutes, and Gwangju in 1 hour 40 minutes.
Direct flights from New York JFK to Incheon run about 14 hours on Korean Air, Asiana, and Delta. Los Angeles (LAX) to ICN runs about 12 hours 30 minutes. Direct service also operates from San Francisco, Seattle, Dallas, Chicago, Atlanta, and Honolulu. South Korea uses the Korean won (KRW), trading at roughly 1,380 KRW per $1. T-money cards work on Seoul's metro (9 lines), buses, taxis, and convenience stores. A single metro ride costs KRW 1,400 ($1). The AREX express train runs from Incheon Airport to Seoul Station in 43 minutes for KRW 9,500 ($6.90). Street food at Gwangjang Market or Myeongdong runs KRW 3,000 to KRW 8,000 ($2.20 to $5.80) per item. Korean BBQ meals cost KRW 15,000 to KRW 30,000 ($10.90 to $21.75) per person.
Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).
Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.
SEA–GMP Quick Facts
Frequently Asked Questions
Flights from SEA to GMP
Seattle–Tacoma International Airport (SEA) and Gimpo International Airport (GMP) had nonstop service from Korean Air, last on the schedule in May 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.
SEA to GMP Flight Duration and Schedule
Nonstop flight time from SEA to GMP is about 11 hours 25 minutes gate to gate. The route covers a distance of 5,186 miles (8,346 km).
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Tokyo Haneda and Beijing Capital. Two-stop connections are also available via intermediate hubs.