RM 1,596 Find Cheap Flights from London Heathrow Airport to Southeast Asia – Compare and Save

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Best Southeast Asia Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 5 days
Kuala Lumpur
Kuala Lumpur1 stopRM 2,564
Kota Kinabalu
Kota Kinabalu1 stopRM 2,471
Kuching
Kuching3 stopsRM 3,289
Penang
Penang1 stopRM 2,471
Langkawi
Langkawi2 stopsRM 2,937
Johor Bahru
Johor Bahru3 stopsRM 3,164
Miri
Miri2 stopsRM 4,031
Kuala Lumpur
Kuala Lumpur1 stopRM 2,564
Kota Kinabalu
Kota Kinabalu1 stopRM 2,471
Kuching
Kuching3 stopsRM 3,289
Penang
Penang1 stopRM 2,471
Langkawi
Langkawi2 stopsRM 2,937
Johor Bahru
Johor Bahru3 stopsRM 3,164
Miri
Miri2 stopsRM 4,031
Booking Insights

KAYAK's insights & trends for Heathrow to Southeast Asia flights

Get data-powered insights and trends into flights from Heathrow to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest London Heathrow Airport to Southeast Asia flight route?

The cheapest ticket to Southeast Asia from London Heathrow Airport found in the last 5 days was to Singapore, at RM 4,030 return. The most popular route is from London Heathrow Airport (LHR) to Singapore (SIN), and the cheapest return airline ticket found on this route in the last 5 days was RM 4,030.

What is the cheapest time of day to fly to Southeast Asia?

The cheapest time of day to fly to Southeast Asia is generally at night, when retur flights cost RM 4,336 on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is RM 4,698.

Can I save money by flying with a stopover from London Heathrow Airport to Southeast Asia?

No, with an average price for the route of RM 2,527, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to Southeast Asia?

The cheapest month for flights from London Heathrow Airport to Southeast Asia is November, when tickets cost RM 3,391 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of return tickets is RM 5,635 and RM 5,221 respectively.

What’s the cheapest day of the week to fly from London Heathrow Airport to Southeast Asia?

When flying from London Heathrow Airport to Southeast Asia, you should consider leaving on a Thursday and avoid Wednesdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Sundays and the most expensive ones on Fridays.

How far in advance should I book a flight from London Heathrow Airport to Southeast Asia?

To get a below-average price on a flight from London Heathrow Airport to Southeast Asia, you should book around 6 weeks before departure, which saves you about 10% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Good to know

Low season

September

Cheapest flight

RM 1,596
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (40% more expensive on average)
Flight from London Heathrow Airport to Kuala Lumpur Airport

Flights from Heathrow to Southeast Asia: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from Heathrow to Southeast Asia 
MartinFlew with Singapore Airlines-Jan 2025
It’s a long time sitting in that seat so sit on a cushion!
Verified travelerFlew with Qantas Airways-Sept 2024
Unless you’re flying Business or First Class, definitely take your own travel pillow - they make a difference.
OmarFlew with Qantas Airways-May 2024
Qantas lounge was crowded. try other One World lounges
Verified travelerFlew with Singapore Airlines-Feb 2024
Flew with Singapore Airlines great experience and efficient transfer to next flight at Changi . Premium economy was worth the extra giving easier boarding and comfortable seats with more room.

FAQs - booking Southeast Asia flights

  • How does KAYAK find such low prices on flights from London Heathrow Airport to Southeast Asia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London Heathrow Airport to Southeast Asia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London Heathrow Airport to Southeast Asia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London Heathrow Airport to Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London Heathrow Airport to Southeast Asia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London Heathrow Airport to Southeast Asia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London Heathrow Airport to Southeast Asia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London Heathrow Airport to Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Southeast Asia

  • Looking for a cheap flight? 25% of our users found tickets from London Heathrow Airport to the following destinations at these prices or less: Kuala Lumpur RM 3,191 one-way - RM 3,770 round-trip

Reviews of the top airline flying from Heathrow to Southeast Asia

 
Need help choosing which airline to fly with from Heathrow to Southeast Asia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Malaysia AirlinesOverall score based on 318 reviews
7.0Food
7.5Boarding
6.6Entertainment
7.4Comfort
8.1Crew
Airline reviews

Flights were delayed, Food was good but only 1 meal instead of 2.

4.0 OkayPrajayan, Nov 2025
Read more Malaysia Airlines reviews

Flights were delayed, Food was good but only 1 meal instead of 2.

Vast improvement needed in customer service. I couldn’t get the drink of my choice during both meals (i.e. sparking water and Diet Coke). I had used plastic cups falling onto me from the tray. No eye contact when they thank you on the way out signalling an insincere thank you.

The IFE is quite unconvenient if using our own device. Not all passenger brought their own earphone/headphone.

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

An overnight Doha to KL. Great sleep, good service and tasty food in business class

The cabin was quite noisy as there were lots of children travelling for the school holidays. Found the selection of movies limited.

Delayed, not enough information. Had to ask for refreshments, crew could have been more proactive

The best so far coz this time it was all male steward on the economy cluster. They were polite, efficient & genuinely courteous. They do not judge you when you ask for more food & peanuts.

I enjoy traveling with Malaysia Airlines. The Asian food they serve is pretty good and the red wine was also good. They did run out of beer and only did a couple of water rounds during the flight but the staff were very friendly.

Prompt and efficient boarding. New MH-awards streaming worked first time on my personal device.

More options for your flight to Southeast Asia

Complete your trip to Southeast Asia with a hotel stay or car hire