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S$ 416 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.
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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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Southeast Asia.
In the last 7 days, travellers have searched 43,377,091 times on KAYAK, and here's why:

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Best Southeast Asia Flight Deals

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

Singapore
Singapore1 stopS$ 679

Good to know

Low season

September

High season

December

Cheapest flight

S$ 416
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (25% more expensive on average)
Flight from London Heathrow Airport to Singapore

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: Singapore S$ 868 one-way - S$ 1,076 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 5 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 1334 reviews
8.6Crew
8.3Boarding
8.0Comfort
7.7Food
8.0Entertainment
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

Nothing special.. they could have provided something to eat without a charge

better announcing at the gate prior to boarding and better organization of various gps

The plane was good - on time! But can the stewardesses smile or actually be nice - not to bark the commands

Edelweiss is now Nickle&dimming, not even a complimentary wine on the intercontinental flight. Sitting space is the smallest I have ever seen.

Flight was cancelled due to technical problems with the aircraft. It would be nice if SWISS would invest in new aircraft; that would for sure minimize the technical issues with (old) aircrafts.

overall the flight was good and we were happy they waited for us. However, our luggage didn t make it and this caused us a lot of problems.

Flight was very full and we had to checkin our carry on. Stuff however promised us that our luggage will be the first one to come out and it did

They rebooked our flight and then canceled our trip halfway through the journey without any explanation. Needed to pay by ourselves for alternative flight options without any help from Swiss.

Flight was diverted from Firenze to Pisa causing delay and inconvenience.

It was great. The attention, the fly was on time.

There was 2 hours delay before boarding and 2 hours delay after boarding while waiting in the plane

Very good crew. Food service above average. Seats very small for a 12 hours flight.

Boarding was a disaster being moved by Air France by bus to the plane. The plane should have been at the right gate.

They lost my baggage and I still have not got it back. Disgrace

They lost my lauggage and I STILL HAVE NOT RECEIVED IT. NO ONE IS HELPING! PLEASE HELP FIND MY LOST LAUGGAGE

They again did not offer any functioning WiFi in the transatlantic crossing.

The first half from DC to Paris was very good and the staff were very helpful and humble BUT flight from Paris to Mumbai was sad. 1) it was packed. 2) no space on head compartment 3) crews were unresponsive to the calls 4) one crew member literally banged the bottle of water after giving me glass of water. A little water splashed on me and she was unapologetic 5) with so many hours of flight, little leg space should be taken care else don’t fill your airline till brim which affects your crew and they remove anger on us. 6) huge line for washrooms. 7) 2nd half journey was pathetic

At check-in at Guarulhos Airport, I was coerced to pay EUROS 100 for each of my two teenage kids travelling on economy premium on the same flight (total charge of EUROS 200) to AIR FRANCE on the rational that they were on a different class and therefore they would require additional care from the flight crew. My wife and I would be (and actually flew) only a few meters from our kids on business class in the same flight. Air France took EUROS 200 from me in exchange for absolutely nothing. My kids are seasoned travelers and independent, and in any event, they were not given any special or any other assistance or attention by Air France flight crew as result or in connection with the fee charged from me at any given time during the flight to Paris - so ABSOLUTELY NO SERVICE WAS PERFORMED AND THE FEE WAS SIMPLY ANOTHER WAY OF “MILKING “ EXTRA EUROS 200 FROM ME. Worse, Air France made us wait for everyone to deplane in Paris to let us deplane - after an Air France Paris representative ridiculously confirmed that our kids were our kids, with our kids at that time already by our side seating in business class. We almost lost our connection to Malta as a result. Such a scheme from Air France is outrageous – especially because it penalizes its customers flying in business class or in first class. I would have imagined that Air France would have wanted to attract clients to fly its premium classes – not to charge cheap EURO 100 fees and to keep them waiting to deplane with their families after 12 hours flights at their destination. You won’t see us any time soon Air France and best of luck with your strategy !

I paid 3 this and dollars for two tickets. No food, minimum drink, confused service and very uncomfortable sear. There was zero difference between busy ness and tourist class. I received a pathetic apology

Forty five minutes late for departure. Staff were pleasant. Food was adequate but not outstanding. Entertainment system was very good, as it usually is on Air France.

Crew were friendly and very helpful Plane was clean and the legroom is standard. Overall a good flight, no complaints.

We were delayed so long that I missed the next flight. I should’ve arrived in Catania at 4 o’clock and arrived at 1 AM. The late departure was due to a water leak due to a dirty filter, according to the flight staff, and that seems like something that should’ve been taken care of before the flight. It’s too simple of a mechanical problem to make you miss the whole day.

I remember flying with Lufthansa many years ago, and it used to be an amazing airline with more technologically savvy and roomy planes, but unfortunately that isn’t the case anymore. The space between the seats is much smaller, which is ok for short flights, but definitely not for across the Atlantic flights. Not sure if I’ll opt for Lufthansa the next time, maybe just if necessary.

Great flight. Friendly crew. Good food. Nice clean cabin and toilet was a good size. I like the starliner.

No assistance as requested. Very late take off. Very hard landing And again , no assistance after landing

Be on time. Constant delays, missed connections. No excuses. Weather was not an issue

The connection to LYON was very tight. The flight was nearly finished boarding when we got to the gate

Mechanical problems had to be fixed after all the passengers were boarded, and kept on the plane for over close to two hours with no air conditioning. Did not have enough snacks for everyone to distribute. Also, the movie screen did not work and no-one seem to be interested in helping us fix the problem. And the last, two people from our family got severe food poisoning. Arrived Atlanta 4 hours later than estimated 2:35 pm landing time. Deeply disappointed in Lufthansa, since it has been one of our preferable air companies to fly with.

I did not like that they failed to put my luggage on my connecting flight to Athens. I was promised it would be located and delivered within 2 days but later told there was no information on its location. This caused me to have unplanned for expenses because I then had to purchase new clothing to wear on my vacation. I did not receive my luggage until my return flight home. I will not be traveling with them again.

Absolutely the most awful experience in the history of service from gate agents to baggage handlers. Never will i use kayak or Lufthansa again. Ever.

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.
14-11Thu
1 stopChina Eastern
27h 35mLHR-SIN
25-11Mon
1 stopChina Eastern
27h 25mSIN-LHR
S$ 679
25-11Mon
1 stopChina Eastern
20h 10mLHR-SIN
10-12Tue
1 stopChina Eastern
27h 25mSIN-LHR
S$ 681
14-11Thu
1 stopChina Eastern
20h 10mLHR-SIN
24-11Sun
1 stopChina Eastern
21h 30mSIN-LHR
S$ 683
18-11Mon
1 stopSingapore Airlines
22h 25mLHR-BKK
28-12Sat
1 stopSingapore Airlines
25h 25mBKK-LHR
S$ 931
19-11Tue
1 stopSingapore Airlines
23h 05mLHR-BKK
28-12Sat
1 stopSingapore Airlines
25h 25mBKK-LHR
S$ 938
2-3Sun
1 stopBritish Airways
23h 20mLHR-BKK
18-3Tue
1 stopBritish Airways
16h 50mBKK-LHR
S$ 985
10-2Mon
1 stopBritish Airways
23h 20mLHR-BKK
12-3Wed
1 stopBritish Airways
16h 50mBKK-LHR
S$ 994
8-4Tue
2 stopsAir France
21h 05mLHR-HKT
14-4Mon
2 stopsAir France
32h 45mHKT-LHR
S$ 1,425
30-3Sun
1 stopSWISS
16h 50mLHR-HKT
9-4Wed
2 stopsSWISS
29h 15mHKT-LHR
S$ 1,475
31-1Fri
1 stopSWISS
15h 40mLHR-HKT
13-2Thu
2 stopsSWISS
19h 10mHKT-LHR
S$ 1,483

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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.
1-12Sun
1 stopChina Southern
21h 05mLHR-SIN
S$ 416
24-2Mon
1 stopChina Southern
34h 50mLHR-SIN
S$ 420
7-12Sat
1 stopAir China
33h 20mLHR-SIN
S$ 546
9-11Sat
1 stopAir China
33h 20mLHR-SIN
S$ 547
25-11Mon
directSingapore Airlines
12h 55mLHR-SIN
S$ 594
24-11Sun
directSingapore Airlines
12h 50mLHR-SIN
S$ 612
6-12Fri
2 stopsSWISS
20h 40mLHR-BKK
S$ 1,074
7-4Mon
2 stopsLufthansa
15h 40mLHR-BKK
S$ 1,099
17-3Mon
1 stopLufthansa
18h 05mLHR-BKK
S$ 2,640
21-12Sat
1 stopSWISS
21h 40mLHR-BKK
S$ 2,971

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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.
7-11Thu
multi-stopChina Eastern
27h 35mLHR-SIN
21-11Thu
multi-stopChina Eastern
21h 30mSIN-LHR
S$ 704
7-11Thu
multi-stopChina Eastern
27h 35mLHR-SIN
20-11Wed
multi-stopChina Eastern
21h 30mSIN-LHR
S$ 714
7-11Thu
multi-stopChina Eastern
27h 35mLHR-SIN
19-11Tue
multi-stopChina Eastern
22h 55mSIN-LHR
S$ 755
7-11Thu
multi-stopAir China
33h 20mLHR-SIN
14-11Thu
multi-stopAir China
25h 55mSIN-LHR
S$ 759
7-11Thu
directBritish Airways
13h 00mLHR-SIN
14-11Thu
directBritish Airways
14h 25mSIN-LHR
S$ 1,068
10-11Sun
directSingapore Airlines
12h 55mLHR-SIN
15-11Fri
directSingapore Airlines
14h 35mSIN-LHR
S$ 1,201
10-11Sun
directBritish Airways
13h 00mLHR-SIN
26-11Tue
directBritish Airways
14h 25mSIN-LHR
S$ 1,222
10-11Sun
directSingapore Airlines
12h 55mLHR-SIN
15-11Fri
directSingapore Airlines
14h 35mSIN-LHR
S$ 1,247
7-11Thu
multi-stopAir France
18h 10mLHR-SIN
20-11Wed
multi-stopAir France
17h 05mSIN-LHR
S$ 1,260
10-11Sun
multi-stopSWISS
24h 55mLHR-SIN
25-11Mon
multi-stopSWISS
27h 10mSIN-LHR
S$ 1,528

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Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports