Cheap flights from London Gatwick Airport to Southeast Asia from $398

The month of May is, on average, the cheapest month to fly to Southeast Asia from London Gatwick Airport, with most prices found around $882. If you don’t want to visit Southeast Asia in May, then you should wait until February to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of $891.

The cheapest day to depart from London Gatwick Airport to Southeast Asia is on a Wednesday when prices can be found for as low as $771. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,070. These prices are subject to change though, so be sure to set up a Price Alert for flights to Southeast Asia.

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 $802. 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 $1,019. 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 $855 when searching weeks out. 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 $781 on momondo.

There are 3 cabin classes available to choose from on London Gatwick Airport 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 and British Airways are the most popular carriers operating from London Gatwick to Southeast Asia

Norse Atlantic UK, China Eastern and Emirates are the top three most popular airlines that fly to Southeast Asia from London Gatwick Airport according to our data. Norse Atlantic UK is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Southeast Asia. Keep in mind that there are 8 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

As of June 2026, there are 2 flights per day flying from London Gatwick Airport to Southeast Asia. The most common time of day flights depart is 10:00AM, with 50% of flights taking off at noon.

The number of flights available between London Gatwick Airport and Southeast Asia is 20 per week as of June 2026. The most frequent departure day is Sat, with 30% of weekly flights leaving on this day.