RM 1,365 Find Cheap Flights from London Heathrow Airport to Southeast Asia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Heathrow to Southeast Asia departing on 27/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Southeast Asia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia, as well as popular online travel agencies
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Best Southeast Asia Flight Deals from Heathrow

Cheapest return prices found by our users on KAYAK in the last 72 hours

Kuala Lumpur
Kuala Lumpur1 stopRM 1,856
Kota Kinabalu
Kota Kinabalu2 stopsRM 2,539
Kuching
Kuching1 stopRM 3,921
Penang
Penang2 stopsRM 2,304
Langkawi
Langkawi2 stopsRM 2,348
Johor Bahru
Johor Bahru2 stopsRM 3,345
Sandakan
Sandakan2 stopsRM 3,256

Cheap Flight Deals from Heathrow to Southeast Asia (LHR-zzYJX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Heathrow to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Heathrow to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
KLM Logo
11:45 - 15:40LHR-KUL
20h 55m1 stop
KLM Logo
21:20 - 10:45KUL-LHR
20h 25m2 stops
RM 1,856KLM
Find Deal
Fri, 9 May - Tue, 20 May
KLM Logo
17:10 - 20:25LHR-KUL
20h 15m2 stops
KLM Logo
21:20 - 10:45KUL-LHR
20h 25m2 stops
RM 1,914KLM
Find Deal
Fri, 9 May - Tue, 20 May
SAUDIA Logo
22:10 - 00:35LHR-KUL
19h 25m1 stop
SAUDIA Logo
02:15 - 20:30KUL-LHR
25h 15m1 stop
RM 2,025SAUDIA
Find Deal
Fri, 9 May - Mon, 19 May
SAUDIA Logo
14:40 - 00:35LHR-KUL
26h 55m1 stop
SAUDIA Logo
02:15 - 20:30KUL-LHR
25h 15m1 stop
RM 2,034SAUDIA
Find Deal
Tue, 13 May - Thu, 22 May
Singapore Airlines Logo
22:05 - 14:40LHR-LGK
33h 35m1 stop
Singapore Airlines Logo
16:10 - 15:45LGK-LHR
30h 35m1 stop
RM 3,628Singapore Airlines
Find Deal
Mon, 12 May - Tue, 20 May
Malaysia Airlines Logo
11:00 - 19:05LHR-JHB
25h 05m1 stop
Malaysia Airlines Logo
06:35 - 16:35JHB-LHR
17h 00m1 stop
RM 3,664Malaysia Airlines
Find Deal
Sun, 18 May - Sun, 25 May
Malaysia Airlines Logo
21:35 - 13:05LHR-LGK
32h 30m1 stop
Malaysia Airlines Logo
14:55 - 16:35LGK-LHR
32h 40m1 stop
RM 3,664Malaysia Airlines
Find Deal
Wed, 1 Oct - Fri, 10 Oct
Singapore Airlines Logo
11:25 - 14:15LHR-LGK
19h 50m2 stops
Singapore Airlines Logo
16:10 - 19:30LGK-LHR
34h 20m1 stop
RM 3,832Singapore Airlines
Find Deal
Mon, 12 May - Tue, 20 May
British Airways Logo
21:10 - 22:55LHR-BKI
18h 45m1 stop
British Airways Logo
17:45 - 05:25BKI-LHR
18h 40m1 stop
RM 4,337British Airways
Find Deal
Thu, 21 Aug - Tue, 9 Sep
British Airways Logo
21:10 - 22:55LHR-BKI
18h 45m1 stop
British Airways Logo
17:45 - 05:25BKI-LHR
18h 40m1 stop
RM 4,488British Airways
Find Deal
Wed, 20 Aug - Tue, 9 Sep

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 price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Southeast Asia.
The cheapest ticket to Southeast Asia from London Heathrow Airport found in the last 72 hours was to Singapore, at RM 1,849 return. The most popular route is from London Heathrow Airport (LHR) to Singapore (SIN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was RM 1,849.

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

The average price for all round-trip flights from London Heathrow Airport to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost RM 879 on average. Morning departures are around 11% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the afternoon, which is peak travel time and where the average cost of a ticket is RM 1,017.

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

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 1 stop stopover the cheapest option at RM 13,469 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Heathrow Airport to Southeast Asia is May, when tickets cost RM 3,323 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is RM 5,166 and RM 4,864 respectively.

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

The average price of all round-trip flights from London Heathrow Airport to Southeast Asia clicked on KAYAK for each day over the last 12 months.
When flying from London Heathrow Airport to Southeast Asia, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to London Heathrow Airport, you’ll find the best rates on Mondays and the most expensive ones on Saturdays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from London Heathrow Airport to Southeast Asia, you should book around 4 weeks before departure. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low season

August

High season

December

Cheapest flight

RM 1,365
Best time to beat the crowds but there is an average 22% increase in price.
Most popular time to fly (29% 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 AirlinesLHR-SINJan 2025
It’s a long time sitting in that seat so sit on a cushion!
Verified travelerFlew with Qantas AirwaysLHR-SINSept 2024
Unless you’re flying Business or First Class, definitely take your own travel pillow - they make a difference.
NorhayatiFlew with Malaysia AirlinesLHR-KULMar 2024
Take MH (Malaysia Airline) coz they are good
OmarFlew with Qantas AirwaysLHR-SINMay 2024
Qantas lounge was crowded. try other One World lounges
Verified travelerFlew with Singapore AirlinesLHR-SINFeb 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.

See more FAQs

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: Bangkok RM 2,178 one-way - RM 3,768 round-trip; Kuala Lumpur RM 2,410 one-way - RM 3,736 round-trip; Singapore RM 1,816 one-way - RM 3,396 round-trip

Top 3 airlines serving from Heathrow to Southeast Asia

 
See real verified KAYAK customer reviews for airlines flying from London to Southeast Asia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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.
8.1
Singapore AirlinesOverall score based on 1287 reviews
7.9Comfort
8.0Entertainment
7.7Food
8.2Boarding
8.6Crew
Airline reviews

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

10.0 ExcellentPierre, Mar 2025PDX - SFO
Read more Singapore Airlines reviews

Construction at PDX resulting in very lung walk from the rental car to the gate. SFO, extremely long walk between terminals to get to connecting Singapore airlines flight. My smart watch recorded a total of 3 miles.

Loved the airline with the exception of their carry on limitations. They enforce a strict 7 kilo limit for carry on baggage which is ridiculous. We traveled from SFO to SIN with carry on with no difficulty yet when we checked in Delhi they forced us to check the carry on bags. The weight of our carry on bags were 11 and 12 kilos and while they exceeded the limitations set by Singapore Airlines they were well under weight limitations set by may other carriers. Interestingly my wife and I were each allowed two 22 KG bags to check in addition to the 7 kg carry on for a total weight of 102 KG's. Our total weight with the one bag we planned to check and our two carry ons was 46 kgs.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

Delayed 1hour due to storm still didn't get window seat for third flight despite paying £240 extra to book them

It was an average flight. I would have expected more from this airline. Food, seats, service, etc was just average. I just give them some extra points for offering free WiFi on board with just a Krisflyer account.

The food options and quality could use some more excitement and variety.

Great airline. Excellent service, good food & lots of TV movies/shows to choose from.

Really enjoyed the flight. Our flight attendant on the way back SIN-LAX was exceptional I didn’t get her name but she was so kind and went above and beyond to make sure I was comfortable. I had a bit of a panic attack and she checked on me a few times to make sure I was ok. Really appreciated her attention and service. Thank u

Overall, very good. The food was better than expected with the exception of the pork and potatoes dinner at the end of the flight. My family all selected that dish and did not set it. I tried a bite also and it was honestly terrible. Also, it would be helpful to know when the snacks in the back of the plane are available.

Crews were very caring and polite. Washroom was surprisingly clean. Overall experience was good , only food choices was very limited. Thanks

Jia yung was the flight attendant that made this a miserable flight.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

AC not working, just slowly blowing room temperature air. Long taxi time does not help as well. Sweating all over the whole trip.

Did not take as cancelled 3 time so took another airline

It was a 2-hour flight so they didn't have much time for serving food. There was some turbulence so they could not serve hot coffee or tea for the safety reason. Good service, good tasting food, nice plane, a little bit of delay.

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.

Service / food has to be much better. Staff were not very attentive to requests. Requested for a second serve of coke and got a weird look back from the host! Was also told they don’t have extra water bottles when I requested for one before sleep! Dinner time food was very minimum and average.

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

chaos boarding. Crew in business class seemed short staffed and lacking in attention to details initially, but did improve during flight.

Very long and took extra push back to BA staff to get a realistic flight after they made me miss my original direct flight. Eventually landed 9 hours late and incurred many extra costs with other missed bookings

They overbooked the flight by 3 people. It is completely unacceptable to tell 3 people, with paid tickets, that need to get home for children etc, that they need to stay another night. No compensation. No apology.

It was a short flight but everything was great! I would fly with British Airways again.

Delayed flight due to lack of crew caused me to miss my connection

Please make sure the number of seats matches the number of overhead bins and passengers don't carry on more than one bag.

It was difficult to board from London to accra. Had to get there an hour before and almost missed the flight. Did not get enough rest time at the lounge

Seating is tight if you don’t upgrade. Food was decent. Boarding and unboarding was efficient. Smooth flight. Could make upgrades more affordable

American Airlines seemed to run a 'dry' flight. No alcohol was offered at any point with meals. Breakfast was a bit tasteless. The 'hot pocket' whatever that is, was horrid breadish pastry with very little filling. Decaf coffee was horrid. Seats didn't seem as wide or spacious as usual, especually for a ten hour flight.

We found the bag drop/ check-in proceedure at T5 unnecessarily complicated. We paid extra for seat selection in advance and were allocated worse seats at T5. We found the check-in person was not particularly helpful although the the staff at the gate were super good.

Very dated plane. Seat was firm and uncomfortable. Entertainment system almost laughably outdated. Poor audio. Picture was always too dark.

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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