Checked Oct 26, 2026 · Details ↗ This is the Korean government’s advisory — also check your own government’s travel advice.
Flight information from Seoul Incheon International Airport (ICN) to London Heathrow (LHR). Prices, airlines and flight times come only from real recent searches — you book and pay on the booking site.
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No recent round-trip prices for a 4-day trip next month yet.
Check prices →Round-trip, per-person prices and schedules saved from recent searches (departing within 60 days, 2–14 nights). Tap to open the live list for those dates. They may change when you book.
See the live list for these dates →Distance is the straight line between the two airports. Actual flight paths and times vary with weather and routing.
Options from the OneWorld London guide: Heathrow: Elizabeth line — ~30-45 min · about £14; Heathrow: Piccadilly line (Tube) — ~50-60 min · about £5-6; Gatwick: Gatwick Express / Thameslink — ~30-45 min · about £12-22; Stansted: Stansted Express — ~50 min · about £20. Fares and times can change, so check official information.
The straight-line distance between the two airports is about 8,860 km. Actual flight paths and times vary with routing and weather.
