Cheap flights from London Gatwick Airport to Southeast Asia from £267

The month of May is, on average, the cheapest month to fly to Southeast Asia from London Gatwick Airport, with most prices found around £530. If you are unable to visit Southeast Asia during the month of May, then departing from London Gatwick Airport during the month September is also very affordable. Most momondo users find prices during this month for around £549.

Our data shows that Wednesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £587. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Saturday is £736.

In the afternoon is the cheapest time of day to fly from London Gatwick Airport to Southeast Asia when you can find flight prices for as low as £595. Flying to Southeast Asia in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around £712. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Southeast Asia from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £636 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from London Gatwick Airport for as low as £586 on momondo.

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

China Eastern, Turkmenistan Airlines, and Gulf Air are the most popular carriers operating from London Gatwick to Southeast Asia

Emirates, China Eastern and Singapore Airlines are the top three most popular airlines that fly to Southeast Asia from London Gatwick Airport 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 Southeast Asia. Keep in mind that there are 23 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

The number of flights available between London Gatwick Airport and Southeast Asia is 3 per day as of March 2026. The most frequent departure time is 21:00, with 46% of daily flights leaving in the evening.

23 flights are operational weekly from London Gatwick Airport to Southeast Asia as of March 2026. The most popular departure day for this route is Tue, with 22% of flights per week taking off on this day.