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€403 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 11/1. 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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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 41,299,237 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 (30% 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 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

  • 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 airline 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 224 reviews
6.5Entertainment
7.6Comfort
6.9Food
7.6Boarding
8.1Crew
Airline reviews

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate. I had to use a paper boarding pass as they do not like electronic boarding passes. I scanned my electronic pass, but the gate agent requested the paper pass. Luckily I had a paper pass, although my electronic pass worked and when the paper pass was scanned it stated I was already on board.

10.0 ExcellentDarryl, Nov 2024HAN - HND
Read more Vietnam Airlines reviews

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate. I had to use a paper boarding pass as they do not like electronic boarding passes. I scanned my electronic pass, but the gate agent requested the paper pass. Luckily I had a paper pass, although my electronic pass worked and when the paper pass was scanned it stated I was already on board.

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate.

I am a bit upset with the check in counter, I signed up a wheelchair for my mom so they wouldn’t grant us her boarding pass. We got to the airport a couple of hours earlier and they had us wait and no one ever gave us her boarding pass or the wheelchair, I had to go back and complain when it was already time for our flight to board. Since we got their earlier, I could have easily pushed my mom myself and we could have relaxed and went to the lounge while waiting… when I finally got someone to help us he couldn’t explain how and why they dismissed us in the first place.

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

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.
21/2Fri
1 stopShenzhen Airlines
20h 30mLHR-MNL
7/3Fri
1 stopShenzhen Airlines
24h 15mMNL-LHR
€501
19/2Wed
1 stopShenzhen Airlines
20h 30mLHR-MNL
13/3Thu
1 stopShenzhen Airlines
24h 15mMNL-LHR
€507
12/1Sun
1 stopAir China
23h 30mLHR-BKK
22/1Wed
1 stopAir China
32h 45mBKK-LHR
€523
7/2Fri
2 stopsHainan Airlines
30h 05mLHR-BKK
20/2Thu
2 stopsHainan Airlines
37h 25mBKK-LHR
€530
13/1Mon
2 stopsHainan Airlines
30h 05mLHR-BKK
13/3Thu
2 stopsHainan Airlines
37h 25mBKK-LHR
€531
12/1Sun
1 stopAir China
20h 45mLHR-BKK
21/1Tue
1 stopAir China
23h 20mBKK-LHR
€557
1/5Thu
1 stopAir India
15h 55mLHR-BKK
11/5Sun
1 stopAir India
19h 35mBKK-LHR
€558
23/4Wed
1 stopAir India
16h 25mLHR-HKT
7/5Wed
1 stopAir India
23h 15mHKT-LHR
€639
24/3Mon
1 stopVietnam Airlines
16h 15mLHR-BKK
5/4Sat
1 stopVietnam Airlines
28h 45mBKK-LHR
€760
16/3Sun
1 stopVietnam Airlines
17h 20mLHR-BKK
5/4Sat
1 stopVietnam Airlines
28h 45mBKK-LHR
€762

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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.
11/1Sat
1 stopShenzhen Airlines
21h 10mLHR-SGN
€403
9/2Sun
1 stopShenzhen Airlines
38h 20mLHR-KUL
€403
13/3Thu
1 stopGulf Air
16h 45mLHR-BKK
€442
23/2Sun
2 stops
20h 55mLHR-DPS
€476
26/2Wed
2 stops
22h 05mLHR-DPS
€477
3/3Mon
2 stopsSAUDIA
34h 40mLHR-MNL
€536
27/1Mon
2 stopsSAUDIA
34h 40mLHR-MNL
€537
13/4Sun
2 stopsVietnam Airlines
39h 35mLHR-KUL
€602
5/3Wed
2 stopsVietnam Airlines
24h 30mLHR-BKK
€611
30/1Thu
1 stopGulf Air
16h 45mLHR-BKK
€688

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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.
23/12Mon
multi-stopShenzhen Airlines
22h 20mLHR-KUL
26/12Thu
multi-stopShenzhen Airlines
30h 40mKUL-LHR
€1,224
21/12Sat
multi-stopSichuan Airlines
43h 30mLHR-BKK
5/1Sun
multi-stopSichuan Airlines
41h 15mBKK-LHR
€1,237
22/12Sun
multi-stopEtihad Airways
19h 40mLHR-BKK
28/12Sat
multi-stopEtihad Airways
23h 10mBKK-LHR
€1,244
22/12Sun
multi-stop
21h 15mLHR-DPS
8/1Wed
multi-stop
21h 35mDPS-LHR
€1,251
23/12Mon
multi-stopKLM
20h 00mLHR-KUL
26/12Thu
multi-stopKLM
23h 20mKUL-LHR
€1,293
22/12Sun
multi-stop
20h 05mLHR-DPS
7/1Tue
multi-stop
21h 35mDPS-LHR
€1,458
22/12Sun
multi-stopEtihad Airways
15h 40mLHR-BKK
2/1Thu
multi-stopEtihad Airways
16h 35mBKK-LHR
€1,461
23/12Mon
multi-stopKLM
17h 40mLHR-KUL
26/12Thu
multi-stopKLM
23h 20mKUL-LHR
€1,610
23/12Mon
directVietnam Airlines
12h 05mLHR-SGN
28/1Tue
multi-stopVietnam Airlines
21h 15mSGN-LHR
€1,712
23/12Mon
directVietnam Airlines
12h 05mLHR-SGN
19/1Sun
multi-stopVietnam Airlines
39h 15mSGN-LHR
€1,730

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Everything you need to know for your flight to Southeast Asia

Information on your arrival and departure airports

London Heathrow Airport (LHR)

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