We've scanned every flight from Seoul to London to find the best deals. If you want a cheap flight, it's best to be as flexible as you can on dates. At the moment, the cheapest flight is on 19 / Feb / 2025. If that day's no good for you, try searching by month to see some alternative dates.
Make sure you use the search options above to search for flights to other airports in London, not just London Heathrow. The more options you look at, the better your chance of finding a cheap deal. Just so you know, the flight typically takes 20 hrs 40 mins.
37 flights go to or via London every week. Cheap flights Currently, the cheapest price available is £407. The most popular airline is Finnair but do spend some time checking all your options – they aren’t necessarily the cheapest airline to book with.
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.