Cheap flights from Southeast Asia to London from $254
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Southeast Asia to London departing on 6/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Southeast Asia to London that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Southeast Asia to London.
Cheap last minute flights
Planning a quick getaway from Southeast Asia to London? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.
Air India flights from Southeast Asia to London Heathrow Airport
Our best Air India deals on Southeast Asia to London Heathrow Airport flight tickets
Air India![Air India]()
Jul 1![Air India]()
Jul 10
BKK2:45 pmBangkok Suvarnabhumi
34h 45m
1 stop
LHR7:30 pmLondon Heathrow
LHR1:15 pmLondon Heathrow
18h 20m
1 stop
BKK1:35 pmBangkok Suvarnabhumi
KLM flights from Southeast Asia to London Heathrow Airport
Our best KLM deals on Southeast Asia to London Heathrow Airport flight tickets
KLM![KLM]()
Jun 2![KLM]()
Jun 12
KUL11:55 pmKuala Lumpur Intl
20h 55m
1 stop
LHR1:50 pmLondon Heathrow
LHR7:15 pmLondon Heathrow
37h 25m
1 stop
KUL3:40 pmKuala Lumpur Intl
KLM![KLM]()
May 22![KLM]()
May 31
KUL11:55 pmKuala Lumpur Intl
16h 05m
1 stop
LHR9:00 amLondon Heathrow
LHR2:45 pmLondon Heathrow
17h 55m
1 stop
KUL3:40 pmKuala Lumpur Intl
See travel insights to London from
How to get the cheapest flight ticket from Southeast Asia to London Heathrow Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
Prices
Airlines
Other information
What is the cheapest month to fly to London Heathrow Airport?
The month of March is, on average, the cheapest month to fly to London Heathrow Airport from Southeast Asia, with most prices found around $942. If you’re not able to fly to London Heathrow Airport in March, then May is your next best option. Flight prices from Southeast Asia to London Heathrow Airport during May average around $949.
What is the cheapest day to depart on your flight to London Heathrow Airport?
Our data shows that Sunday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $1,018. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,168.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is in the afternoon. momondo users have found flights departing from Southeast Asia to London Heathrow Airport in the afternoon for as low as $770. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights at noon are often more expensive with an average ticket price of $1,296.
What is the cheapest Southeast Asia to London Heathrow flight route?
Fly from Bangkok Suvarnabhumi to London Heathrow for the best Southeast Asia - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
You are more likely to see cheaper flights to London Heathrow Airport from Southeast Asia when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,015 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Southeast Asia for as low as $903 on momondo.
What cabin class options are available on Southeast Asia to London Heathrow flights?
There are 4 cabin classes available to choose from on Southeast Asia to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Southeast Asia to London Heathrow?
SriLankan Airlines, Hainan Airlines, and Shenzhen Airlines are the most popular carriers operating from Southeast Asia to London Heathrow
What airlines fly to London Heathrow Airport?
Singapore Airlines, Thai Airways and EVA Air are the top three most popular airlines that fly to London Heathrow Airport from Southeast Asia according to our data. Singapore Airlines is the first choice among our users, with 27% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 18 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Southeast Asia to London Heathrow Airport on average per day?
51 flights are operational daily from Southeast Asia to London Heathrow Airport as of April 2025. The most popular departure time for this route is 12:00PM, with 30% of flights per day taking off in the evening.
How many flights depart from Southeast Asia to London Heathrow Airport on average per week?
357 flights are operational weekly from Southeast Asia to London Heathrow Airport as of April 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.
Cheap Southeast Asia to London Heathrow Airport flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Southeast Asia to London Heathrow Airport
When did momondo last update prices for flights from Southeast Asia to London Heathrow Airport?
Prices for flights from Southeast Asia to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Southeast Asia to London Heathrow Airport?
As of April 2025, there are 20 operators available to choose from for flights from Southeast Asia to London Heathrow Airport.
How old do you have to be to fly from Southeast Asia to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Southeast Asia to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Southeast Asia to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from Southeast Asia to London Heathrow Airport is Boeing 777, representing 17.15% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 11.63%, Airbus A380-800 at 8.87%, and Boeing 777-300ER at 8.00%.
Best airlines flying from Southeast Asia to London Heathrow Airport
Compare and see reviews for airlines that fly from Southeast Asia to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $596 | Free Cancellation | Rating 7.5 96 reviews | |||
| PriceFrom $655 | Free Cancellation | Rating 7.2 88 reviews | |||
| PriceFrom $663 | Free Cancellation | Rating 7.4 611 reviews | |||
| PriceFrom $664 | Free Cancellation | Rating 7.5 1,588 reviews | |||
| PriceFrom $668 | Free Cancellation | Rating 8.0 3,215 reviews | |||
| PriceFrom $669 | Free Cancellation | Rating 6.7 7,042 reviews | |||
| PriceFrom $676 | Free Cancellation | Rating 7.1 148 reviews | |||
| PriceFrom $703 | Free Cancellation | Rating 6.6 6,837 reviews | |||
| PriceFrom $707 | Free Cancellation | Rating 8.1 1,292 reviews | |||
| PriceFrom $713 | Free Cancellation | Rating 7.5 829 reviews |
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Why use momondo?
Why should I use momondo to find a flight deal from Southeast Asia to London?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Southeast Asia.
Can I find flights from Southeast Asia to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Southeast Asia with this policy.
How can momondo help me find flights from Southeast Asia to London?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Southeast Asia.
I’m not ready to book a flight from Southeast Asia to London right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Southeast Asia to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.
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