Find the best flight deals to South Korea — including fare sales, error fares, and weekly alerts for $500–$800 roundtrip from the US.
Best Months: January–March, September–November
Avg Price: $500–$800 roundtrip from the US
Top Airlines: Korean Air, Asiana Airlines, T'way Air, United
Airports: ICN (Incheon, Seoul's main international airport), GMP (Gimpo, domestic + some regional)
We find cheap flights every week — including error fares, flash sales, and deals you won't see anywhere else.
January through March offers the cheapest fares, with West Coast roundtrips often $500–600. September and November are also affordable. Avoid cherry blossom season (April) and Chuseok holiday (September/October) for the lowest prices.
Nonstop from the West Coast takes 12–13 hours. From the East Coast, expect 14–15 hours nonstop. Korean Air and Asiana both operate nonstop routes from multiple US cities.
Seoul (ICN) is one of the best Asian hub airports — clean, efficient, and well-connected. Korean Air and Asiana offer free or cheap layover programs. Budget carriers like T'way and Jin Air fly to Japan, Southeast Asia, and China cheaply.