Cheap flights from Southeast Asia to London from £221

The cheapest month to fly to London from Southeast Asia is in November. Flight prices, which tend to average around £637, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from Southeast Asia averaging around £684.

Our data shows that Saturday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £599. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Southeast Asia to London for around £797.

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £191. Flights at midday are often more expensive, with an average ticket price of £877.

Fly from Bangkok Suvarnabhumi to London Gatwick for the best Southeast Asia - London flight prices

You are more likely to see cheaper flights to London from Southeast Asia when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £776 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Southeast Asia for as low as £690 on momondo.

There are 3 cabin classes available to choose from on Southeast Asia to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

AirAsia X, Royal Jordanian, and Turkish Airlines are the most popular carriers operating from Southeast Asia to London

Emirates, EVA Air and Etihad Airways are the top three most popular airlines that fly to London from Southeast Asia according to our data. Emirates is the first choice among our users, with 34% of people opting to fly with this airline when travelling to London. Keep in mind that there are 24 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

58 flights are operational daily from Southeast Asia to London as of July 2026. The most popular departure time for this route is 23:00, with 39% of flights per day taking off in the evening.

407 flights are operational weekly from Southeast Asia to London as of July 2026. The most popular departure day for this route is Wed, with 15% of flights per week taking off on this day.