Cheap flights from London to Seoul

September is the cheapest month on this route, and the price calendar shows fares for every month of the year, so you can see how far the rest of the year sits above it. Spring and autumn are the comfortable windows in both cities; midsummer and the depths of winter are either hot and wet in Seoul or cold and dark at home. Midweek departures usually cost less than weekend ones, and fares climb around Korean public holidays and the Lunar New Year period, when families travel. Book a few months ahead for the shoulder months and watch the calendar rather than guessing.

No airline flies London to Seoul non-stop, so every option is a connecting one. AirAsiaX is the low-cost name on the list, with the leanest fare inclusions. The rest are full-service carriers: Xiamen Airlines, Air China, China Eastern Airlines, Hainan Airlines, Shenzhen Airlines, Beijing Capital Airlines, Air India, Turkmenistan Airlines and Qatar Airways. Where you change planes shapes the trip, since Gulf and Chinese hubs mean different connection lengths, and a full-service ticket usually includes checked baggage while a low-cost fare may not. Check what each fare covers before you compare totals.

Seoul has two airports, and they are not in the same place. Incheon International handles most long-haul arrivals and sits outside the city, linked to central Seoul by airport rail and by express and ordinary buses, with taxis at the curb. Gimpo International is closer in and mostly serves regional and domestic traffic, so most London itineraries land at Incheon. Allow time for immigration and baggage after a long connecting journey, and check which airport your ticket actually names before you arrange a ride or a room. If your connection is on separate tickets, leave yourself room in case the first flight runs late.

Currency

KRW (₩)

Power sockets

Type C, F · 220 V

Language

Korean Sign Language, Korean

Emergency number

112, 113, 119

Driving side

right

Calling code

+82

Internet domain

.kr, .한국

Population of Seoul

9.7 M (2020)

Time zone

UTC+09 (Asia/Seoul)

Country facts: Wikidata

• Check which London airport you leave from, since Heathrow, Gatwick, Stansted, Luton and London City are not interchangeable.
• On a low-cost fare, confirm what baggage is included before you add a checked bag.
• If your connection is on separate tickets, make sure you have time to recheck and clear transit formalities.
• Confirm which Seoul airport your ticket names, Incheon International or Gimpo International.
• Check entry requirements and any visa or travel authorisation for South Korea before you pay.
• Book early for September, the cheapest month, and compare the calendar around Korean holidays.