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€377 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 27/4. 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

KAYAK searches 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
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Cheap Flight Deals from Heathrow to Southeast Asia (LHR-zzYJX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Heathrow to Southeast Asia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Heathrow to Southeast Asia

Recommended return flight deals departing in the coming months from the most popular airlines that fly from Heathrow to Southeast Asia.
Discover the best prices for you by selecting your travel dates on KAYAK.
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KLM Logo
17:10 - 15:40LHR-KUL
15h 30m1 stop
KLM Logo
21:20 - 10:45KUL-LHR
20h 25m2 stops
€420KLM
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Fri, 9 May - Mon, 19 May
SAUDIA Logo
22:10 - 00:35LHR-KUL
19h 25m1 stop
SAUDIA Logo
17:35 - 12:40KUL-LHR
26h 05m1 stop
€421SAUDIA
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Sat, 17 May - Sat, 24 May
Shenzhen Airlines Logo
22:05 - 01:40LHR-MNL
20h 35m1 stop
Shenzhen Airlines Logo
02:55 - 20:00MNL-LHR
24h 05m1 stop
€466Shenzhen Airlines
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Fri, 13 Jun - Sat, 5 Jul
Shenzhen Airlines Logo
22:05 - 01:40LHR-MNL
20h 35m1 stop
Shenzhen Airlines Logo
02:55 - 19:50MNL-LHR
23h 55m1 stop
€495Shenzhen Airlines
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Wed, 7 May - Fri, 23 May
China Southern Logo
22:10 - 14:05LHR-BKK
33h 55m1 stop
China Southern Logo
13:45 - 19:00BKK-LHR
35h 15m1 stop
€501China Southern
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Sat, 3 May - Sat, 10 May
Air China Logo
20:25 - 03:10LHR-BKK
24h 45m2 stops
Air China Logo
04:10 - 20:30BKK-LHR
22h 20m2 stops
€540Air China
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Fri, 2 May - Thu, 15 May
China Southern Logo
22:10 - 16:45LHR-MNL
35h 35m1 stop
China Southern Logo
17:45 - 18:05MNL-LHR
31h 20m2 stops
€541China Southern
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Sun, 4 May - Mon, 12 May
China Eastern Logo
21:20 - 00:40LHR-BKK
21h 20m1 stop
China Eastern Logo
02:10 - 18:40BKK-LHR
22h 30m1 stop
€543China Eastern
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Fri, 2 May - Wed, 14 May
Air China Logo
20:25 - 00:10LHR-BKK
21h 45m1 stop
Air China Logo
19:35 - 20:30BKK-LHR
30h 55m1 stop
€549Air China
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Mon, 21 Apr - Tue, 6 May
China Eastern Logo
21:20 - 00:55LHR-KUL
20h 35m1 stop
China Eastern Logo
01:55 - 18:40KUL-LHR
23h 45m1 stop
€638China Eastern
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Sat, 17 May - Fri, 23 May

KAYAK's insights & trends for Heathrow to Southeast Asia flights

Get data-powered insights and trends into flights from Heathrow to Southeast Asia to help you find the cheapest flights, the best time to fly, and much more.

What is the cheapest London Heathrow Airport to Southeast Asia flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from London Heathrow Airport to Southeast Asia.
The cheapest ticket to Southeast Asia from London Heathrow Airport found in the last 72 hours was to Bangkok, at €847 return. The most popular route is from London Heathrow Airport (LHR) to Ho Chi Minh City (SGN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was €919.

What is the cheapest time of day to fly to Southeast Asia?

The average price for all round-trip flights from London Heathrow Airport to Southeast Asia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Southeast Asia is generally in the evening, when retur flights cost €795 on average. Morning departures are around 73% more expensive than evening flights, on average. The most expensive time of day to fly to Southeast Asia is generally in the morning, which is peak travel time and where the average cost of a ticket is €1,377.

Can I save money by flying with a stopover from London Heathrow Airport to Southeast Asia?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of €2,163, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from London Heathrow Airport to Southeast Asia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Heathrow Airport to Southeast Asia is May, when tickets cost €758 (return) on average. On the other hand, the most expensive months are July and December, when the average cost of return tickets is €1,128 and €1,128 respectively.

How far in advance should I book a flight from London Heathrow Airport to Southeast Asia?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Southeast Asia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from London Heathrow Airport to Southeast Asia, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.
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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 (28% more expensive on average)

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 
Learn how KAYAK collects reviews and tips from users.
MartinFlew with Singapore AirlinesLHR-SINJan 2025
It’s a long time sitting in that seat so sit on a cushion!
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.

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 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.
7.1
Air ChinaOverall score based on 82 reviews
7.8Crew
7.0Food
7.6Boarding
6.0Entertainment
7.0Comfort
Airline reviews

Communication between the captain/crew and the passengers needs to be improved.

8.0 ExcellentAnonymous, Dec 2024PEK - DAC
Read more Air China reviews

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

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 !

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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