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Find cheap flights from London Heathrow Airport to Southeast Asia from $275

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 6/11. 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
0 bags
Sun 6/2
Sun 6/9

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Best Southeast Asia Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Manila
Manila1 stop$558
Singapore
Singapore1 stop$594
Denpasar
Denpasar2 stops$632
Cebu City
Cebu City1 stop$710
Phuket City
Phuket City1 stop$581
Hanoi
Hanoi1 stop$573
Phnom Penh
Phnom Penh1 stop$614
Angeles City
Angeles City1 stop$1,005
Koh Samui
Koh Samui2 stops$944

Good to know

Low season

August

High season

December

Cheapest flight

$275
Best time to beat the crowds but there is an average 19% increase in price.
Most popular time to fly with an average 24% increase in price.
Flight from London Heathrow Airport to Bangkok

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 travelers 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 round-trip 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: Bangkok $605 one-way - $889 round-trip; Singapore $559 one-way - $904 round-trip

Top 5 airlines serving 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.
8.2
Singapore AirlinesOverall score based on 1470 reviews
8.4Boarding
8.1Comfort
8.7Crew
8.2Entertainment
7.8Food
Airline reviews

Great to have actual hot tastey meal on a flight. Well done

10.0 ExcellentJeff, Apr 2024SIN - MNL
Read more about Singapore Airlines reviews

Great to have actual hot tastey meal on a flight. Well done

All in all the flight was good. Love the fact that for airline food it was piping hot

Awesome as always. I wish though the cabin for premium was upgraded.... Same old sane old :(

Wonderful service, planes and interior in great condition, very pleasant experience

Flying with Singapore airlines is always excelllent - the crew are lovely and the food too is great. It’s my number 1 airline

Perfect experience from boarding through to leaving the flight, comfortable and personalised service from all staff, highly recommended

They were able to assist my elderly father and myself after not being able to check in to scoot. The counter service was phenomenal. They did what they could to get us on the next plane so we could catch our Connecting flight. Scoot closed early on us so we ended up missing our flight.

The stewardess was very helpful all the way. My seat had an issue with headphones and after the replaced and gave me a new pair and noticed it was the seat I got a new chair to sit and a great ride back home

The seat comfort, the food and of course the crew, they made you feel welcome and relaxed 😊

The overall operation needs to be improved. The in-flight services took forever and sometimes ran out of options.

Don't be afraid if you board an Oman Air Airbus A330 - it will take you to Colombo and not Muskat. The Aircraft is leased by Qatar Airways ;-)

No towels or tissue and chocolate and mint provided before arrival

Not good. Expected a lot more as far as excellence.

I staff or crew they were very friendly and humbly, they done theirs service very well, I appreciate them and thank you to the company or Qatar 🇶🇦 Government for providing as good service in their flight ,once again, thank you 😊 🙏 😀 😉 👍

Fantastic, the 787-9 is a very beautifully designed plane and it was a pleasure to fly in the Qsuite. The suite did feel slightly smaller than the 777 variant, and the suite door also felt smaller, as I felt more exposed as passengers and crew walked past. Food was too notch, and the service was fantastic. I wish they’d enforce boarding zones more effectively, but otherwise they did really well.

To many ads. 3 or 4 between each movie. All repetitive, all related to Doha which I was just passing thru.

My seat that I booked over a year ago and some other passenger was sitting in it. They said they could not walk and they would not move. I was with my young kid and the crew did nothing to accommodate that. Just disappointed that the airline accepts that excuse from a passenger.

Crews are very rude and unhelpful. Cramped seats in economy. Foods are useless

Better service is needed. I booked for Qatar but I was switched to American way after I bought my tickets.

Lovely aircraft and I flight entertainment. Good leg room. Full flight crew struggled a bit

This booking was as a result of stolen identity and hacking my debit account. I reported it to my bank. The thief tried to book two flights, maybe more. Hopefully, Kayak will be able to block fraudulent bookings and charges better in the future.

Food could be better. Bread should be warm served with butter. Bread quality is bad and cold served.

Thw pla e was freezing by dar the cildest flight i’ve been on. The seats are comfortable the leg room is spacious and the seat is in leather very confy. Unfortunately old plane so no plugs the entertainment is limited the inflight internet is very expensive 20$ per hour for 50mb on a 17h you will take 2 times to contact your family and work. At this cost it goes very quick very high. The food is very mediocre A breakfast tastless A snack A meal super spicy A lot of improvement are to be made

Route from DC was ok nothing special or bad From Jeddah to cairo horrible First flight got delayed by 3 hours no explanation so what ever Arrived in cairo to find lock on my bag Saudia crew in cairo didn’t know who did could not open had to break my bag zipper to open my luggage

Good variety could have been better; crew not as friendly

Flight was delayed, but there was no explanation why. Seats were comfortable and service was good. Food was good and there were more snacks than I expected.

my screen did not work properly. I couldn't watch any movies nor the flight information. I can see the flight info on the remote only. the toilet is very small and tight actually it is the smallest toilet I've ever seen in a business class. ( I'm not a big body person) in Jeda airport the first bus broke down so we transferred to a second bus and it took a long time to move. the seat spacing was good in 2 by 2 configuration. the food and the service was OK for a short flight.

There was not enough meals to serve in business class. The crew was busy and not very accommodating. They talked to each other more than attending to the passengers needs. Not professional at all and not properly supervised at all.

Behaviour of the staff very unprofessional. Choice of accepting Tea and coffee was only at the time of recieving meal. I requested if I can have tea later. Response I got was" I am going to sleep after serving food, either take it or will not be served letter". Few hours later I saw many passengers getting to kitchen and getting a cup of tea.

Pros: "The flying crew and flight itself was great"
Cons: "The boarding personnel and the luggages cares was terrible. I had probably the worst experience possible."

Comfortable seats. Be aware there is no alcohol on this airline.

Seats were comfortable. Be aware there is no alcohol on this airline.

Every thing was very food except the meal. It was a sandwich of something like a beef kebab. It was really bad in terms of hardness as well as taste. We were a family of 7 persons non of us could eat it his sandwich. Cake was good.

It was very nice flight only suggestions to upload recent videos and English subtitles. Thanks

Wheelchair service is not available right away on Kuwait Airways

Everybody was so nice to treat me good all the workers When I came to Bangladesh there was just a little problem with the luggage but I got my luggage it took like two hours Other than that everything is good

Food quality should be upgrade. Plastic spoons looks like not good as well as food quality not up to the mark.

Everything was great specially the seats was comfortable even I was in the economy and the food was really Great👍

Not much on entertainment, food was good but not delicious, flight was on time

The crew was attentive and kind. The business class cabin wasn’t very full during the flight so the service was catered to your specific needs.

The flight was delayed for almost 5 hours, but I understand that it was not up to the company, however how they could handle the situation better, they never apologized for that delay, moreover despite passengers being there for 7 hours only thing they did was to give a bowl of instant noodles, afterwards on the plane tiny snacks, people were there starting from lunch time and we’ve arrived to destination at almost midnight

Flight was delayed for 2 hours for no reason, then we spent almost an hour after boarding because of the weather conditions. If we left on time we could avoid that 😾

Pros: "Because of our delay, we flew with Air Thai instead of Air China....much better airline"
Pros: "The crew was accommodating during the flight but spoke very little English and could not help with information on connecting flight."
Cons: "We missed our connecting flight due to a delay and the airline would not let us through because we could have made our second flight...."
Cons: "Seats are narrow, leg room limited, and food is minimal."
Pros: "The crew was super helpful and amazing! Comfortable seats and plenty of space for someone my size to sit (5’4”)."
Cons: "The only thing that I think could be better is the entertainment. I had a hard time figuring out how to use the screen on the aircraft but the selection of shows was good."
Cons: "Really old aircraft...please upgrade the video systems and make sure everyone has the same good optons"
Pros: "Boarding process may have been the best thing possible."
Cons: "Customer service could be a whole lot better. Seats very uncomfortable for extended flights."
Pros: "Cabin crew was super nice and the exit row seating has large amounts of leg room."
Pros: "Flight was canceled, air China communication to passengers was terrible. Took me 48 hours to get home with miscommunications all along the line."

Book cheap flights from London to Southeast Asia

Recent round-trip flight deals

5/30Thu
1 stopAir China
20h 30mLHR-MNL
6/6Thu
1 stopAir China
20h 35mMNL-LHR
$558
5/30Thu
1 stopAir China
20h 30mLHR-MNL
6/5Wed
1 stopAir China
24h 20mMNL-LHR
$559
9/10Tue
1 stopSAUDIA
19h 00mLHR-CGK
10/1Tue
1 stopSAUDIA
22h 45mCGK-LHR
$584
9/10Tue
1 stopSAUDIA
27h 50mLHR-CGK
10/2Wed
2 stopsSAUDIA
27h 30mCGK-LHR
$595
9/4Wed
1 stopKuwait Airways
17h 25mLHR-BKK
12/5Thu
1 stopKuwait Airways
18h 35mBKK-LHR
$681
9/6Fri
1 stopKuwait Airways
22h 10mLHR-MNL
10/2Wed
1 stopKuwait Airways
22h 40mMNL-LHR
$688
5/13Mon
1 stopQatar Airways
15h 55mLHR-BKK
6/6Thu
1 stopQatar Airways
18h 15mBKK-LHR
$710
5/14Tue
1 stopQatar Airways
14h 45mLHR-BKK
6/11Tue
1 stopQatar Airways
16h 30mBKK-LHR
$724
9/8Sun
1 stopSingapore Airlines
16h 10mLHR-KUL
9/23Mon
1 stopSingapore Airlines
17h 00mKUL-LHR
$743
10/13Sun
1 stopSingapore Airlines
15h 50mLHR-KUL
11/10Sun
1 stopSingapore Airlines
16h 45mKUL-LHR
$744

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Recent one-way flight deals

6/11Tue
1 stop
27h 35mLHR-BKK
$275
6/1Sat
2 stops
21h 25mLHR-BKK
$322
6/11Tue
2 stops
26h 45mLHR-BKK
$335
5/16Thu
nonstopSingapore Airlines
13h 05mLHR-SIN
$410
6/18Tue
1 stopAir China
34h 00mLHR-SIN
$442
6/11Tue
1 stopAir China
36h 40mLHR-KUL
$446
5/19Sun
1 stopSingapore Airlines
18h 50mLHR-DPS
$541
8/2Fri
1 stopKuwait Airways
22h 10mLHR-MNL
$884
6/1Sat
2 stopsQatar Airways
24h 40mLHR-SGN
$1,032
6/30Sun
1 stopKuwait Airways
22h 10mLHR-MNL
$2,244

Search by stops

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Last minute flights from Heathrow to Southeast Asia

Last minute flight, train and bus deals

5/6Mon
multi-stopShenzhen Airlines
29h 20mLHR-HAN
5/21Tue
multi-stopShenzhen Airlines
24h 00mHAN-LHR
$595
5/4Sat
multi-stopAir China
37h 05mLHR-BKK
6/5Wed
multi-stopAir China
24h 45mBKK-LHR
$639
5/7Tue
multi-stopChina Eastern
21h 00mLHR-MNL
5/22Wed
multi-stopChina Eastern
21h 45mMNL-LHR
$664
5/5Sun
multi-stopKLM
21h 00mLHR-BKK
5/24Fri
multi-stopKLM
25h 35mBKK-LHR
$667
5/5Sun
multi-stopEtihad Airways
16h 05mLHR-BKK
6/6Thu
multi-stopEtihad Airways
27h 20mBKK-LHR
$703
5/5Sun
multi-stopEtihad Airways
17h 05mLHR-BKK
6/4Tue
multi-stopEtihad Airways
23h 50mBKK-LHR
$715
5/8Wed
multi-stopSAUDIA
15h 30mLHR-BKK
5/15Wed
multi-stopSAUDIA
21h 10mBKK-LHR
$729
5/4Sat
nonstopSingapore Airlines
13h 05mLHR-SIN
5/11Sat
nonstopSingapore Airlines
13h 40mSIN-LHR
$874
5/5Sun
multi-stopKuwait Airways
17h 00mLHR-BKK
5/30Thu
multi-stopKuwait Airways
17h 35mBKK-LHR
$904
5/7Tue
nonstopSingapore Airlines
13h 05mLHR-SIN
7/22Mon
nonstopSingapore Airlines
13h 35mSIN-LHR
$1,108

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London Heathrow Airport - Southeast Asia Flights

Departure:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

Southeast Asia - London Heathrow Airport

Cabin classes:

$3,564
$246
$211
$51

Browse origins:

  • Flights » 
  • London » 
  • London Heathrow Airport