Find flights
Deals
When to book
FAQs & Tips
User Tips
Airlines

RM 1,578 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 1/12. 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.
1 adult

Search 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
In the last 7 days, travellers have searched 43,377,091 times on KAYAK, and here's why:

Save 14% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Southeast Asia Flight Deals

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

Kuala Lumpur
Kuala Lumpur1 stopRM 2,762
Kota Kinabalu
Kota Kinabalu1 stopRM 2,539
Kuching
Kuching2 stopsRM 3,644
Penang
Penang1 stopRM 2,731
Langkawi
Langkawi2 stopsRM 2,714
Johor Bahru
Johor Bahru2 stopsRM 3,531
Miri
Miri2 stopsRM 3,037
Sandakan
Sandakan2 stopsRM 2,950

Good to know

Low season

June

High season

January

Cheapest flight

RM 1,578
Best time to beat the crowds (8% 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

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 to Southeast Asia from London Heathrow Airport 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 to Southeast Asia with an airline and back to London Heathrow Airport 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 to Southeast Asia from London Heathrow Airport 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 2,440 one-way - RM 3,801 round-trip; Singapore RM 2,021 one-way - RM 4,232 round-trip

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 
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.

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 1336 reviews
8.0Comfort
8.0Entertainment
8.3Boarding
7.7Food
8.6Crew
Airline reviews

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.

8.0 ExcellentAlvaro, Oct 2024KIX - SIN
Read more Singapore Airlines reviews

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

The staff were amazing and very kind. The seats recline a little too far back and are up close when sitting behind.

My groups frequent flyer star allianceUnited airline miles was not accepted. The Singapore premium economy bag had to be requested, it was very lacking- no toothbrush. I paid more than double than economy but could only use the bathrooms sharing with economy which was hardly available and had to wait in line. Is the 2X $ worth it just for a larger seat???? It is questionable. Seats were not that comfortable. My husband’s seat had white stains on it- had to wipe it down. Our headphones did not have covers on it. Food- way too much.

The booking experience was bad. Our six character booking ID number disappeared the day before the flight, We could not find out what happened or what was the status of our flight, scheduled for the next day. We finally found the right number to contact Singapore Airlines on the matter (not easy). The Singapore agent worked through the issue in a little over thirty minutes on the phone, the day before the flight. That was great. I'm very happy with Singapore Airlines and their performance. Contact with a competent person on the matter was near impossible. It seems no one in business these days wants to deal with customers once they've pocketed the money. There were resellers, including Kayak, involved in the chain. When we finally got through to Underpricer, we did get a return call that could have proved helpful. But by that time the matter had been resolved by the Singapore agent. Majestic Vacations, the reseller who received the payment was less than worthless. That's just a fast buck operation. Ugh.

Fantastic patience when one of the passengers behind me was an absolute horrible, horrible person and the girls just kept smiling and doing their job with patience and kindness. Well, done to the crew.

A 16 hour flight from Singapore to Los Angeles had only 2 meals. Please make it 3 meals.

A 16 hour flight from Singapore to Los Angeles had only 2 meals. It would be great to have 3 meals.

Once again the meal served was delicious - we got chicken rice

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.

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

No entertainment and the seats are well worn.! To the point it feels like your sitting in a bowl

The seats of the Boeing 787-10 Dreamliner were ridiculously uncomfortable. I was on 10 flights during this vacation and this plane was super uncomfortable both times I was on one whereas all of the others were perfectly fine. Additionally, these planes do not have any air vents that passengers can control, the climate is entirely controlled by the crew which made for an extremely uncomfortable temperature for the duration. The flight attendants tried to make everyone happy with the temperature but several people you could tell were excessively warm and just wanted a bit of airflow.

Everything was fine except not posting the gate number until 14 minutes before boarding. In an airport the size of Heathrow, that was unacceptable.

We already had a five hour layover in London, and then they cancelled our flight about half hour before we were due to board. They wouldn't give us access to the lounge and hanging around the extremely busy terminal for another three hours until our next flight was crappy. 8 hours in a busy terminal is awful. The least they could have done was give us access to one of their quiet, comfortable lounges for the inconvenience. I heard from others that they do this a lot -- cancel these short flights if they're not completely full. When we got onto the next flight it was absolutely packed and uncomfortable. Just very disappointing. British Airways used to be a great airline to fly with, but it doesn't feel that way at all now.

Don't fly thru London Awful and huge U need 4 hrs to transfer cuz u have to tale buses to and fro from airplanes Bad business

Staff with low service level, forgetful. Temperature at 15 C and after asking twice to raise the temperature the crew did nothing.

They took good care of me on the plane and had it not been for handicap assistance I would definitely had missed my connecting flight . Not BA fault but The airport security instead . Two hours is way too long for security

The least comfortable business class seat I have encountered for a while - very very firm when reclined making sleeping difficult. Cost cutting is visible everywhere - no offer to refill drinks (the wines were not good - so no real issue there :) ) Just not worth what BA charge

old seat need to go! outdated and uncomfortable. I waited 40 minutes for my bag

They had about 20-25 people overbooked. Including me. Why is this?? I was put on a flight to NC an hour later with a 4 hour layover. I was supposed to be home at 1045am instead i was home at 7:30pm. An extra day to pay for dog care.

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.
12/3Wed
1 stopChina Southern
36h 00mLHR-BKI
20/3Thu
1 stopChina Southern
31h 10mBKI-LHR
RM 2,539
12/3Wed
1 stopChina Eastern
22h 40mLHR-BKI
19/3Wed
1 stopChina Eastern
20h 25mBKI-LHR
RM 2,622
29/11Fri
2 stopsChina Southern
36h 30mLHR-BKI
8/12Sun
1 stopChina Southern
31h 10mBKI-LHR
RM 2,631
16/2Sun
2 stops
37h 20mLHR-LGK
4/3Tue
2 stops
30h 05mLGK-LHR
RM 2,714
16/2Sun
2 stops
37h 20mLHR-LGK
5/3Wed
2 stops
54h 45mLGK-LHR
RM 2,718
20/11Wed
directMalaysia Airlines
12h 50mLHR-KUL
6/12Fri
directMalaysia Airlines
14h 00mKUL-LHR
RM 3,369
28/11Thu
directMalaysia Airlines
12h 55mLHR-KUL
10/12Tue
directMalaysia Airlines
14h 00mKUL-LHR
RM 3,374
14/1Tue
1 stopSingapore Airlines
14h 55mLHR-KUL
22/1Wed
1 stopSingapore Airlines
16h 45mKUL-LHR
RM 3,474
18/2Tue
1 stopSingapore Airlines
32h 40mLHR-LGK
6/3Thu
1 stopSingapore Airlines
35h 40mLGK-LHR
RM 3,854
30/4Wed
1 stopBritish Airways
17h 10mLHR-KCH
11/5Sun
1 stopBritish Airways
18h 25mKCH-LHR
RM 4,296

Search by stops

Search by airline

Search by price

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.
1/12Sun
1 stopChina Southern
33h 40mLHR-KUL
RM 1,578
26/3Wed
1 stopShenzhen Airlines
22h 20mLHR-KUL
RM 1,591
22/1Wed
2 stops
25h 00mLHR-KUL
RM 1,639
14/1Tue
3 stops
35h 30mLHR-KUL
RM 1,652
12/11Tue
2 stopsChina Eastern
42h 30mLHR-KUL
RM 1,757
12/11Tue
1 stopChina Eastern
27h 50mLHR-KUL
RM 1,818
25/11Mon
1 stopSingapore Airlines
22h 55mLHR-KUL
RM 2,001
11/11Mon
directMalaysia Airlines
12h 55mLHR-KUL
RM 2,342
2/12Mon
directMalaysia Airlines
12h 55mLHR-KUL
RM 2,351
26/2Wed
1 stopSingapore Airlines
18h 15mLHR-SZB
RM 2,438

Search by stops

Search by airline

Search by price

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.
8/11Fri
multi-stopChina Eastern
27h 50mLHR-KUL
21/11Thu
multi-stopChina Eastern
20h 00mKUL-LHR
RM 2,194
6/11Wed
multi-stopChina Eastern
27h 50mLHR-KUL
21/11Thu
multi-stopChina Eastern
38h 50mKUL-LHR
RM 2,229
7/11Thu
multi-stopChina Eastern
27h 50mLHR-KUL
21/11Thu
multi-stopChina Eastern
25h 50mKUL-LHR
RM 2,290
9/11Sat
multi-stopShenzhen Airlines
22h 20mLHR-KUL
23/11Sat
multi-stopShenzhen Airlines
22h 40mKUL-LHR
RM 2,452
9/11Sat
multi-stopShenzhen Airlines
22h 20mLHR-KUL
16/11Sat
multi-stopShenzhen Airlines
22h 40mKUL-LHR
RM 3,277
6/11Wed
directMalaysia Airlines
12h 50mLHR-KUL
10/11Sun
directMalaysia Airlines
14h 00mKUL-LHR
RM 4,173
6/11Wed
directMalaysia Airlines
12h 50mLHR-KUL
8/11Fri
directMalaysia Airlines
14h 00mKUL-LHR
RM 4,291
9/11Sat
multi-stopBritish Airways
28h 10mLHR-KUL
20/11Wed
multi-stopBritish Airways
28h 05mKUL-LHR
RM 4,763
6/11Wed
multi-stopSingapore Airlines
31h 05mLHR-SZB
13/11Wed
multi-stopSingapore Airlines
23h 45mSZB-LHR
RM 6,730
8/11Fri
multi-stopSingapore Airlines
32h 35mLHR-SZB
15/11Fri
multi-stopSingapore Airlines
37h 00mSZB-LHR
RM 7,337

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports