Culture · Food · Long haul. Compare cheap flights to Seoul from US airports — flight time 13h from Los Angeles International.
Compare flights to Seoul →Seoul is a long-haul destination from the US, suited to a culture and food trip. The 13h flight from Los Angeles International (LAX) makes it a realistic one- or two-week trip, with onward connections from major hubs (JFK, MIA, LAX, ORD, ATL) opening up additional departure options. Round-trip fares sit in the premium long-haul bracket on this corridor, with prices from $649 when timing and routing align.
January typically delivers the cheapest fares (around $1103 round-trip on average), with prices climbing through August when seasonal demand peaks ($2076+). On the ground, South Korean won (KRW) is the local currency and Korean the dominant language — English coverage is solid in tourist quarters and at the airport. Visa: K-ETA required for US passport holders — apply online before travel, KRW 10,000. 8-14 weeks ahead is the long-haul sweet spot — earlier doesn't reliably help, later starts to hurt; last-minute bookings on this route can run two to three times the cheapest fare we see.
By Louisa Lowe, Lead Writer · Updated for 2026.
Always confirm visa and entry requirements at travel.state.gov before booking.
From Los Angeles International (LAX), nonstop flights to Seoul take approximately 13h. Total journey time depends on your departure airport, any connections, and seasonal headwinds.
K-ETA required for US passport holders — apply online before travel, KRW 10,000. Always check travel.state.gov for the latest entry requirements before booking.
The best months to visit Seoul are Apr–Jun, Sep–Oct, when conditions are most comfortable for sightseeing and weather is settled.
South Korean won (KRW) — most major hotels and restaurants in Seoul accept card payments, but cash is useful for smaller establishments and tipping.
Korean. English is widely understood in tourist areas, hotels, and major restaurants.
