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€323 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 7/2. 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

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:

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Good to know

Low season

September

High season

December
Best time to beat the crowds (12% less expensive on average)
Most popular time to fly (29% more expensive on average)

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.

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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 airlines flying 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.
7.6
Vietnam AirlinesOverall score based on 236 reviews
7.7Boarding
6.5Entertainment
8.1Crew
7.6Comfort
6.8Food
Airline reviews

Was on holiday with my partner and we booked with Vietnam airlines as it not meant to be a budget airline. They separated us and made us sit at either end of the plane. Not the way I planned to spend my time on my holiday separate from my loved one. How can they separate people on the same booking. They know we are together and spending quality time together.

2.0 MediocreDamien, Aug 2024DAD - VCA
Read more Vietnam Airlines reviews

Was on holiday with my partner and we booked with Vietnam airlines as it not meant to be a budget airline. They separated us and made us sit at either end of the plane. Not the way I planned to spend my time on my holiday separate from my loved one. How can they separate people on the same booking. They know we are together and spending quality time together.

I had sometimes my trips with Vietnam Airlines and I like it 😊

The check-in process was great, and I cannot remember the name of the supervisor, but he was good and told us about the transit process very correctly and efficiently and kindly. We were given down access and the overall process was very efficient.

The plane had a technical problem it would delayed 10 hours but they just gave limited information and put all passengers into the Miracle lounge. Ther were not enough chairs and so on.

Ensure there is a choice of food for all customers and also enough food

An excellent airline; polite and courteous cabin crew, excellent meal and drink service. Highly recommended.

We boarded the plane at 1:20 pm It was hot. There was no air-conditioning It was stifling They kept us on the plane sitting there for 1 hour and 10 minutes

No space in between the seats as per them the average height of human is 5’3” and weight as 55, so seats are designed as per the same. Also, the aircraft was dirty and full of insects

when we arrived at Taipei no one help us to get boarding pass. we saw a few people there asked them for help but they just ignored us. There was a guy told us to call Starlux number to get help but we don’t know how to dial the number until there was a lady working there helped us to call Starlux customer then someone came down took us to another counter for boarding pass. Very confused and inconvenient. We might not choose Starlux again in the future.

There was no entertainment and food option limited But the service was first class on an economy flight

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

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 😾

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.
18/11Mon
1 stopChina Eastern
35h 30mLHR-BKK
4/12Wed
1 stopChina Eastern
31h 20mBKK-LHR
€459
21/11Thu
1 stopChina Eastern
35h 30mLHR-BKK
5/12Thu
1 stopChina Eastern
31h 20mBKK-LHR
€461
15/11Fri
1 stopShenzhen Airlines
22h 20mLHR-KUL
28/11Thu
1 stopShenzhen Airlines
22h 40mKUL-LHR
€487
25/11Mon
1 stopShenzhen Airlines
22h 20mLHR-KUL
12/12Thu
1 stopShenzhen Airlines
22h 40mKUL-LHR
€488
18/11Mon
1 stopAir China
17h 25mLHR-BKK
3/12Tue
1 stopAir China
23h 20mBKK-LHR
€514
19/11Tue
1 stopAir China
20h 45mLHR-BKK
2/12Mon
1 stopAir China
23h 20mBKK-LHR
€515
22/11Fri
2 stopsChina Southern
29h 20mLHR-MNL
9/12Mon
1 stopChina Southern
17h 55mMNL-LHR
€527
30/1Thu
1 stopChina Southern
34h 35mLHR-MNL
28/2Fri
2 stopsChina Southern
32h 15mMNL-LHR
€543
23/11Sat
1 stopVietnam Airlines
23h 50mLHR-KUL
8/12Sun
1 stopVietnam Airlines
19h 25mKUL-LHR
€756
30/4Wed
1 stopVietnam Airlines
26h 10mLHR-MNL
21/5Wed
1 stopVietnam Airlines
18h 35mMNL-LHR
€771

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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.
7/2Fri
1 stopShenzhen Airlines
38h 20mLHR-KUL
€323
23/11Sat
1 stopShenzhen Airlines
36h 10mLHR-HKT
€324
27/11Wed
1 stopShenzhen Airlines
38h 20mLHR-BKK
€324
2/3Sun
1 stopChina Southern
31h 55mLHR-BKK
€341
11/11Mon
2 stopsHainan Airlines
30h 05mLHR-BKK
€344
11/11Mon
2 stopsHainan Airlines
30h 05mLHR-BKK
€348
11/11Mon
3 stopsChina Eastern
29h 30mLHR-BKK
€349
11/11Mon
3 stopsChina Eastern
29h 30mLHR-BKK
€352
24/11Sun
2 stopsVietnam Airlines
24h 30mLHR-BKK
€595
26/11Tue
2 stopsVietnam Airlines
24h 30mLHR-BKK
€596

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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.
9/11Sat
multi-stopShenzhen Airlines
22h 20mLHR-KUL
22/11Fri
multi-stopShenzhen Airlines
22h 40mKUL-LHR
€515
8/11Fri
multi-stopShenzhen Airlines
20h 30mLHR-MNL
21/11Thu
multi-stopShenzhen Airlines
24h 15mMNL-LHR
€740
7/11Thu
multi-stopTurkish Airlines
17h 45mLHR-KUL
8/12Sun
multi-stopTurkish Airlines
18h 10mKUL-LHR
€771
9/11Sat
multi-stopTurkish Airlines
25h 45mLHR-KUL
1/12Sun
multi-stopTurkish Airlines
19h 00mKUL-LHR
€778
8/11Fri
multi-stopQatar Airways
20h 40mLHR-KUL
3/12Tue
multi-stopQatar Airways
23h 15mKUL-LHR
€779
8/11Fri
multi-stopQatar Airways
20h 40mLHR-KUL
2/12Mon
multi-stopQatar Airways
18h 20mKUL-LHR
€809
5/11Tue
multi-stopCathay Pacific
18h 45mLHR-KUL
16/11Sat
multi-stopCathay Pacific
29h 10mKUL-LHR
€827
5/11Tue
multi-stopCathay Pacific
17h 30mLHR-BKK
22/11Fri
multi-stopCathay Pacific
18h 50mBKK-LHR
€828
6/11Wed
multi-stopVietnam Airlines
33h 20mLHR-MNL
4/12Wed
multi-stopVietnam Airlines
33h 55mMNL-LHR
€1,064
9/11Sat
multi-stopVietnam Airlines
20h 45mLHR-BKK
24/12Tue
multi-stopVietnam Airlines
19h 15mBKK-LHR
€1,082

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Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports