Cheap flights from Southeast Asia to London from $307

The cheapest month to fly to London from Southeast Asia is in November. Flight prices, which tend to average around $836, are often lower during this time because this is during the off-season. The month of February is another great option to travel to London, with average flight prices from Southeast Asia averaging around $863.

The cheapest day to depart from Southeast Asia to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $964. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,176. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

Flying to London from Southeast Asia in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,030 when looking at flights departing in the evening. Flights to London are more costly at noon, with an average ticket price of $1,376. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,015 when searching weeks out. 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 $892 on momondo.

There are 4 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.

Etihad Airways, Shenzhen Airlines, and Qatar Airways are the most popular carriers operating from Southeast Asia to London

Emirates, EVA Air and Singapore Airlines 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 35% of people opting to fly with this airline when traveling to London. Keep in mind that there are 16 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

55 flights are operational daily from Southeast Asia to London as of April 2026. The most popular departure time for this route is 11:00PM, with 41% of flights per day taking off in the evening.

390 flights are operational weekly from Southeast Asia to London as of April 2026. The most popular departure day for this route is Wed, with 16% of flights per week taking off on this day.