RM 1,527 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 28/3. 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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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 2,181
Kota Kinabalu
Kota Kinabalu2 stopsRM 2,709
Kuching
Kuching3 stopsRM 3,511
Penang
Penang2 stopsRM 2,378
Langkawi
Langkawi2 stopsRM 3,399
Johor Bahru
Johor Bahru2 stopsRM 3,363
Miri
Miri2 stopsRM 3,085
Sandakan
Sandakan2 stopsRM 3,721

Good to know

Low season

June

High season

January

Cheapest flight

RM 1,527
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 9% lower 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: Kuala Lumpur RM 2,360 one-way - RM 3,570 round-trip; Singapore RM 2,172 one-way - RM 3,926 round-trip
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be June, July and August. The cheapest month to fly from London is May.

Top 4 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 1328 reviews
8.2Boarding
7.7Food
7.9Comfort
8.6Crew
8.0Entertainment
Airline reviews

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

6.0 Goodstuart, Jan 2025BNE - SIN
Read more Singapore Airlines reviews

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

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

Check in was easy through self-check-in kiosks just like domestic flights. Staff onboard were fantastic. Some "book the cook" good options weren't great, others really good. Entertainment options a bit limited to what I've experienced on Qantas. Overall a good flight though, especially for the price.

The staff on Singapore Airlines was incredible. I would like to commend LS Reuben from my SQ37 flight on November 19th, 2024, from LAX to Singapore, for his outstanding service and care. During the flight, one of my earbuds—brand new and valued at nearly $300—fell out and became lodged in the box controlling the in-flight entertainment system. I was understandably upset, but Reuben went above and beyond to assist me in this tough situation. Reuben demonstrated exceptional determination and empathy. Instead of suggesting we wait for an engineer, he immediately took action, spending almost 30 minutes searching for the earbud. He even got down on the floor to ensure it was recovered. His genuine concern and persistence made all the difference and turned a frustrating situation into one where I felt truly valued as a passenger. Reuben is a shining example of the remarkable service that sets Singapore Airlines apart. His dedication and willingness to go the extra mile left a lasting impression, and I want to sincerely thank him for his kindness and professionalism.

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

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.

Everything was good except food , food choices was very less. Washrooms were closed.overall good experience.

The crew have great customer service but their economy seating isn’t the most comfortable for a 220lbs+ guy and the food wasn’t bad, but wasn’t exceptional, either.

This flight was 16 hours and they made it very tolerable. Seats were comfortable and the staff very accommodating. I had plenty of inflight entertainment. Food was very good.

Service excellent would chose Singapore airlines as my first choice

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.

Delay in off-boarding due to customs at SFO... pilot announcement should have come earlier so passengers don't clog aisles.

Better good than most, if not all European airlines. If you’re stuck in an economy seat anyways, China Eastern is a good choice because of shorter flight time, being able to overfly Russia

The temperature of the plane cabin is too hot. Sweat and uncomfortable. Also my food tray was broken down drinks fall off

Reasonable. What they offer during the flight is not great, but the crew is polite and try to compensate it.

Price is the main attraction. Staff is OK but difficult to communicate with them due to general lack of English. Food is truly abysmal, the main courses (4) were barely edible. The choices for breakfast served at 5:30 am prior to landing at Gatwick airport were Spaghetti Bolognese or seafood fried rice. Choices offered for all 4 mains were either something rice or noodles. Shanghai airport layover is much too long in a very poorly serviced airport. We were unable to use WiFi; private lounges required cash only payment with no ATM or cash exchange open.

I was surprised and appreciate that they actually served a hot meal on such a short, early morning flight. The check in and boarding was hassle free and most of all my Alliance Status / Code Share was recognized and the revelant courtesy was extended; other than some needed attention to detail concerning the cleanliness of the cabin, and some unnecessary aggressive wording their safety briefing, it was an overall pleasant flight, and I would certainly fly with them again.

Flight was delayed for more than 3 hours, food was mediocre, seat didn’t recline

Lost Baggage - very frustrated…learned that bag was never put on plane.

I think it’s time that somebody set a standard for the temperature in the cabins. I would rather it be colder than anybody that wants to have a blanket have a blanket to keep it so warm at times is unbearable and quite uncomfortable. That’s the only thing I would add.

For the price we paid, I couldn’t complain. Was good value for money. Service was excellent but food was mediocre. Crew were excellent and spoke English. You will never go hungry. The food was ample but was mediocre. Entertainment limited and wifi doesn’t all allow you to access some social media. The best part was comfortable seats and bed (business class) with a screen to close out the rest of the cabin.

They did not provide free WiFi, It could be purchased for, I think, around $25, This seemed excessive.

Good flight, awful, vindictive, vile customer services in T5 Heathrow.

Ok we did get an upgrade and the flight was delayed 45 minutes BUT without any bias. The crew were excellent, friendly, efficient and verging on exuberant, they all were so happy to do their jobs. Food excellent and the new safety video is fun to watch.

Reliable, great value, but not outstanding in any aspect. This is similar to the experience you get in most international carriers like Etihad or Delta.

Aer Lingus was the actual airline so they handled everything professionally.

Flight got diverted because of an emergency and the crew were fantastic and probably saved that passenger’s life. While in emergency landing some measures could have been taken to prevent additional delays. In general not great experience with BA. I used to fly BA years ago all the time, very disappointed by the whole experience, seats were tight, bathrooms tight.

Business class area too small and chair and equipment not comfortable .

Lost my luggage in London Was double charged for luggage

BAD!!! due to delay I missed my connection in MEX, had to pay for hotel and new flight for next morning increasing my spent for $1,000 usd

Boarding could have been better organized. The one member of staff disappeared for a while so boarding by group relied on honesty.

Book cheap flights from London to Southeast Asia

Recent return flight deals

 
These are the cheapest return flights from London to Southeast Asia found on KAYAK in the last 72 hours.
4/3Tue
1 stopAir China
36h 10mLHR-KUL
24/3Mon
1 stopAir China
32h 55mKUL-LHR
RM 2,181
15/3Sat
1 stopAir China
36h 10mLHR-KUL
21/3Fri
1 stopAir China
32h 55mKUL-LHR
RM 2,208
22/2Sat
1 stopShenzhen Airlines
38h 20mLHR-KUL
14/3Fri
1 stopShenzhen Airlines
22h 40mKUL-LHR
RM 2,405
23/3Sun
1 stopShenzhen Airlines
22h 20mLHR-KUL
6/4Sun
1 stopShenzhen Airlines
29h 55mKUL-LHR
RM 2,409
4/3Tue
1 stopChina Eastern
23h 05mLHR-KUL
23/3Sun
1 stopChina Eastern
38h 50mKUL-LHR
RM 2,821
20/2Thu
1 stopChina Eastern
22h 40mLHR-BKI
26/2Wed
1 stopChina Eastern
20h 25mBKI-LHR
RM 2,839
27/4Sun
directMalaysia Airlines
13h 15mLHR-KUL
27/5Tue
directMalaysia Airlines
13h 45mKUL-LHR
RM 3,085
14/3Fri
1 stopMalaysia Airlines
23h 20mLHR-LGK
22/3Sat
1 stopMalaysia Airlines
26h 45mLGK-LHR
RM 3,457
19/6Thu
2 stopsSingapore Airlines
19h 50mLHR-LGK
2/7Wed
2 stopsSingapore Airlines
25h 40mLGK-LHR
RM 3,752
2/3Sun
1 stopSingapore Airlines
18h 15mLHR-SZB
11/3Tue
1 stopSingapore Airlines
33h 25mSZB-LHR
RM 4,017

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from London to Southeast Asia found on KAYAK in the last 72 hours.
28/3Fri
3 stops
49h 10mLHR-KUL
RM 1,527
22/3Sat
3 stops
38h 50mLHR-KUL
RM 1,536
4/3Tue
1 stopAir China
36h 10mLHR-KUL
RM 1,630
13/3Thu
1 stopAir China
18h 35mLHR-KUL
RM 1,697
17/2Mon
2 stopsChina Eastern
42h 30mLHR-KUL
RM 1,715
28/2Fri
2 stopsChina Eastern
42h 30mLHR-KUL
RM 1,787
27/3Thu
1 stopSingapore Airlines
22h 55mLHR-KUL
RM 1,836
28/3Fri
1 stopSingapore Airlines
23h 05mLHR-KUL
RM 2,015
29/1Wed
directMalaysia Airlines
12h 50mLHR-KUL
RM 2,163
28/3Fri
directMalaysia Airlines
12h 50mLHR-KUL
RM 2,167

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Last minute flights from Heathrow to Southeast Asia

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from London to Southeast Asia that are departing in the next 10 days.
23/1Thu
multi-stopAir China
36h 00mLHR-KUL
7/2Fri
multi-stopAir China
23h 25mKUL-LHR
RM 2,875
22/1Wed
multi-stopAir India
28h 10mLHR-KUL
4/2Tue
multi-stopAir India
19h 15mKUL-LHR
RM 2,906
26/1Sun
multi-stopShenzhen Airlines
22h 20mLHR-KUL
14/2Fri
multi-stopShenzhen Airlines
30h 40mKUL-LHR
RM 3,143
26/1Sun
multi-stopShenzhen Airlines
22h 20mLHR-KUL
13/2Thu
multi-stopShenzhen Airlines
22h 40mKUL-LHR
RM 3,175
22/1Wed
multi-stopChina Eastern
24h 40mLHR-KUL
26/2Wed
multi-stopChina Eastern
38h 50mKUL-LHR
RM 3,188
22/1Wed
multi-stopChina Eastern
23h 05mLHR-KUL
26/2Wed
multi-stopChina Eastern
33h 30mKUL-LHR
RM 3,363
26/1Sun
multi-stopBritish Airways
17h 35mLHR-KUL
12/2Wed
multi-stopBritish Airways
28h 05mKUL-LHR
RM 3,618
26/1Sun
multi-stopBritish Airways
17h 35mLHR-KUL
10/2Mon
multi-stopBritish Airways
18h 30mKUL-LHR
RM 3,743
22/1Wed
directMalaysia Airlines
12h 50mLHR-KUL
4/2Tue
directMalaysia Airlines
14h 00mKUL-LHR
RM 3,936
26/1Sun
directMalaysia Airlines
12h 55mLHR-KUL
14/2Fri
directMalaysia Airlines
14h 00mKUL-LHR
RM 3,940

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Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

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