How many flights depart from London Heathrow Airport to Southeast Asia on average per day?

As of March 2026, there are 53 flights per day flying from London Heathrow Airport to Southeast Asia. The most common time of day flights depart is 21:00, with 66% of flights taking off in the evening.

Which airlines fly to Southeast Asia?

Thai Airways, Etihad Airways and EVA Air are the top three most popular airlines that fly to Southeast Asia from London Heathrow Airport according to our data. Thai Airways is the first choice among our users, with 27% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 44 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from London Heathrow to Southeast Asia?

Shenzhen Airlines, China Eastern, and Etihad Airways are the most popular carriers operating from London Heathrow to Southeast Asia

How many flights depart from London Heathrow Airport to Southeast Asia on average per week?

As of March 2026, there are 371 flights per week flying from London Heathrow Airport to Southeast Asia. The most common day of the week flights depart is Wed, with 15% of flights taking off on this day.

How many operators does momondo search for flights from London Heathrow Airport to Southeast Asia?

As of March 2026, there are 46 operators available to choose from for flights from London Heathrow Airport to Southeast Asia.

How old do you have to be to fly from London Heathrow Airport to Southeast Asia?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Southeast Asia.

What documentation or ID do you need to fly to Southeast Asia?

The required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£268 Cheap Flights from London Heathrow Airport to Southeast Asia in 2026

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Find the cheapest flights from London Heathrow Airport to Southeast Asia

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

21:20 - 14:00

LHR

HAN

34h 40m

1 stop

15:00 - 18:40

HAN

LHR

33h 40m

1 stop

£390China Eastern

Mon, 11 May - Mon, 18 May

21:20 - 14:45

LHR

HAN

35h 25m

2 stops

18:45 - 18:40

HAN

LHR

29h 55m

1 stop

£396China Eastern

Wed, 22 Apr - Tue, 5 May

21:20 - 01:20

LHR

HAN

22h 00m

1 stop

02:20 - 18:40

HAN

LHR

22h 20m

1 stop

£397China Eastern

Tue, 14 Apr - Wed, 13 May

20:25 - 00:10

LHR

BKK

21h 45m

1 stop

01:30 - 20:25

BKK

LHR

24h 55m

1 stop

£428Air China

Wed, 10 Jun - Sat, 20 Jun

22:00 - 01:30

LHR

MNL

20h 30m

1 stop

06:25 - 17:40

MNL

LHR

18h 15m

1 stop

£481Air China

Tue, 28 Apr - Thu, 14 May

09:00 - 16:15

LHR

KUL

24h 15m

1 stop

02:05 - 14:05

KUL

LHR

19h 00m

1 stop

£517Qatar Airways

Thu, 21 May - Sat, 30 May

21:45 - 19:45

LHR

KUL

15h 00m

1 stop

09:50 - 18:45

KUL

LHR

15h 55m

1 stop

£518Etihad Airways

Tue, 12 May - Tue, 2 Jun

09:40 - 19:45

LHR

KUL

27h 05m

1 stop

09:50 - 18:45

KUL

LHR

15h 55m

1 stop

£520Etihad Airways

Tue, 31 Mar - Mon, 27 Apr

22:10 - 07:45

LHR

DPS

26h 35m

1 stop

08:40 - 18:05

DPS

LHR

40h 25m

3 stops

£531China Southern

Sun, 17 May - Thu, 4 Jun

22:10 - 07:45

LHR

DPS

26h 35m

1 stop

08:40 - 19:20

DPS

LHR

41h 40m

1 stop

£534China Southern

Sun, 17 May - Thu, 4 Jun

Air China flights from London Heathrow Airport to Southeast Asia

Our best Air China deals on London Heathrow Airport to Southeast Asia flight tickets

Air China

10 Jun

LHR20:25London Heathrow

21h 45m

1 stop

BKK00:10Bangkok Suvarnabhumi

20 Jun

BKK01:30Bangkok Suvarnabhumi

24h 55m

1 stop

LHR20:25London Heathrow

£428

Air China

2 Jun

LHR22:40London Heathrow

19h 30m

1 stop

BKK00:10Bangkok Suvarnabhumi

7 Jun

BKK01:30Bangkok Suvarnabhumi

24h 55m

1 stop

LHR20:25London Heathrow

£435

Air China

9 Sept

LHR20:25London Heathrow

33h 30m

1 stop

HAN11:55Hanoi Noibai

13 Oct

HAN13:25Hanoi Noibai

34h 15m

1 stop

LHR17:40London Heathrow

£436

Etihad Airways flights from London Heathrow Airport to Southeast Asia

Our best Etihad Airways deals on London Heathrow Airport to Southeast Asia flight tickets

Etihad Airways

23 Mar

LHR20:20London Heathrow

15h 15m

1 stop

BKK18:35Bangkok Suvarnabhumi

30 Mar

BKK08:50Bangkok Suvarnabhumi

16h 40m

1 stop

LHR19:30London Heathrow

£501

Etihad Airways

24 Mar

LHR20:20London Heathrow

15h 15m

1 stop

BKK18:35Bangkok Suvarnabhumi

31 Mar

BKK03:15Bangkok Suvarnabhumi

33h 45m

1 stop

LHR07:00London Heathrow

£504

Etihad Airways

24 Mar

LHR08:40London Heathrow

26h 55m

1 stop

BKK18:35Bangkok Suvarnabhumi

19 Apr

BKK03:15Bangkok Suvarnabhumi

33h 45m

1 stop

LHR07:00London Heathrow

£505

momondo Fare Finder

Use the filters below to find and compare flights from London Heathrow Airport to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 11/5

21:20-14:00

1 stop34h 40m

Hanoi Noibai

Mon 18/5

15:00-18:40

1 stop33h 40m

£390

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 22/4

21:20-14:45

2 stops35h 25m

Hanoi Noibai

Tue 5/5

18:45-18:40

1 stop29h 55m

£396

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Tue 14/4

21:20-01:20

1 stop22h 00m

Hanoi Noibai

Wed 13/5

02:20-18:40

1 stop22h 20m

£397

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 10/6

20:25-00:10

1 stop21h 45m

Bangkok Suvarnabhumi

Sat 20/6

01:30-20:25

1 stop24h 55m

£428

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 28/4

22:00-01:30

1 stop20h 30m

Manila Ninoy Aquino Intl

Thu 14/5

06:25-17:40

1 stop18h 15m

£481

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Thu 21/5

09:00-16:15

1 stop24h 15m

Kuala Lumpur Intl

Sat 30/5

02:05-14:05

1 stop19h 00m

£517

Fastest return journey

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Tue 12/5

21:45-19:45

1 stop15h 00m

Kuala Lumpur Intl

Tue 2/6

09:50-18:45

1 stop15h 55m

£518

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Tue 31/3

09:40-19:45

1 stop27h 05m

Kuala Lumpur Intl

Mon 27/4

09:50-18:45

1 stop15h 55m

£520

LondonDenpasar

LHR - DPS

LHRDPS

London Heathrow

Sun 17/5

22:10-07:45

1 stop26h 35m

Denpasar Bali Ngurah Rai

Thu 4/6

08:40-18:05

3 stops40h 25m

£531

LondonDenpasar

LHR - DPS

LHRDPS

London Heathrow

Sun 17/5

22:10-07:45

1 stop26h 35m

Denpasar Bali Ngurah Rai

Thu 4/6

08:40-19:20

1 stop41h 40m

£534

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London Heathrow Airport to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The month of May is, on average, the cheapest month to fly to Southeast Asia from London Heathrow Airport, with most prices found around £606. If you are unable to visit Southeast Asia during the month of May, then departing from London Heathrow Airport during the month September is also very affordable. Most momondo users find prices during this month for around £606.

What is the cheapest day to depart on your flight to Southeast Asia?

Our data shows that Tuesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £730. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Saturday is £789.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the evening is the cheapest time of day to fly from London Heathrow Airport to Southeast Asia when you can find flight prices for as low as £741. Flying to Southeast Asia in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around £769. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from London Heathrow to Singapore Changi for the best London Heathrow - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £703 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from London Heathrow Airport for as low as £661 on momondo.

What cabin class options are available on London Heathrow to Southeast Asia flights?

There are 4 cabin classes available to choose from on London Heathrow to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Southeast Asia.

Cheap London Heathrow Airport to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Southeast Asia

Fastest flight time	11h 30m
Direct flights	Mon, Tue, Wed, Thu, Fri and Sun
Airports in Southeast Asia	295 airports

The fastest flight from London Heathrow Airport to Southeast Asia takes 11h 30m

Direct flights go from London Heathrow Airport to Southeast Asia on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. There are no airlines offering direct flights..

There are 295 airports in Southeast Asia. From London Heathrow Airport there are direct flights to Bangkok Suvarnabhumi (BKK), Hanoi Noibai (HAN).

Search flight deals

When did momondo last update prices for flights from London Heathrow Airport to Southeast Asia?
Prices for flights from London Heathrow Airport to Southeast Asia are updated daily.
How many operators does momondo search for flights from London Heathrow Airport to Southeast Asia?
As of March 2026, there are 46 operators available to choose from for flights from London Heathrow Airport to Southeast Asia.
How old do you have to be to fly from London Heathrow Airport to Southeast Asia?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London Heathrow Airport to Southeast Asia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from London Heathrow Airport to Southeast Asia is Boeing 787-9 Dreamliner (20.29% of total bookings). The next most popular plane models are Airbus A350-1000 (19.21%), Boeing 777-300ER (10.77%), and Boeing 777 (9.64%).

Best airlines flying from London Heathrow Airport to Southeast Asia

Compare and see reviews for airlines that fly from London Heathrow Airport to Southeast Asia with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom £284	Free Cancellation	Rating 7.3 1,720 reviews	Search Scandinavian Airlines flights
Norse Atlantic UK	PriceFrom £290	Free Cancellation	Rating 7.3 53 reviews	Search Norse Atlantic UK flights
China Airlines	PriceFrom £340	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
Hainan Airlines	PriceFrom £354	Free Cancellation	Rating 8.2 62 reviews	Search Hainan Airlines flights
ITA Airways	PriceFrom £367	Free Cancellation	Rating 6.7 1,171 reviews	Search ITA Airways flights
Royal Jordanian	PriceFrom £410	Free Cancellation	Rating 6.7 456 reviews	Search Royal Jordanian flights
Royal Brunei Airlines	PriceFrom £429	Free Cancellation	Rating 0.0 0 reviews	Search Royal Brunei Airlines flights
Finnair	PriceFrom £451	Free Cancellation	Rating 7.7 1,374 reviews	Search Finnair flights
KLM	PriceFrom £497	Free Cancellation	Rating 7.8 1,475 reviews	Search KLM flights
Condor	PriceFrom £507	Free Cancellation	Rating 6.5 401 reviews	Search Condor flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Southeast Asia?

Finding the right flight to Southeast Asia from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Southeast Asia quick and easy, saving you time and money.

Can I find flights from London to Southeast Asia with flexible booking policies on momondo?

Flights from London to Southeast Asia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Southeast Asia?

momondo helps you find the best flight between London and Southeast Asia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from London to Southeast Asia right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Southeast Asia from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.