We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Jeju. You can choose from zero airlines.
But that doesn’t necessarily mean they’ll be the best option for your travel dates. To see as many flights as possible, try widening your search to include other departure airports.
You can view all flight times yourself in the results list.
You can also search by month, which will reveal the cheapest time of the week to fly.