Culture · Food · Long haul. Compare cheap flights to Seoul from UK airports — flight time 11h from London.
Seoul is a long-haul destination from the UK, suited to a culture and food trip. The 11h flight from London makes it a realistic two-week trip option, with regional UK airports — Manchester, Edinburgh, Birmingham — adding direct service on the busier routes. Fares sit in the premium long-haul bracket on this corridor, with one-way prices from £520 when you catch the right week.
January typically delivers the cheapest fares (around £546 return on average), with prices climbing through August when seasonal demand peaks (£1352+). 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 — apply online; UK passport holders eligible. 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.
Direct flights from London to Seoul take approximately 11h. Total journey time depends on your departure airport and any connections.
K-ETA required — apply online; UK passport holders eligible
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.