How long is the flight from London Heathrow Airport to Southeast Asia?

Shenzhen Airlines, Etihad Airways, and British Airways can get you from London Heathrow Airport to Southeast Asia in just under 13h 45m. Your travel time can differ by up to 6h 50m. The distance between London Heathrow Airport and Southeast Asia is about 6757 mi. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to fly from London Heathrow Airport to Southeast Asia one-way?

The cheapest airline one-way is Hainan Airlines, with whom users have recently found tickets for as low as £181. However, be on the lookout for offers from SAUDIA and Air China, as they are both options that can get you from London Heathrow Airport to Southeast Asia for a low price.

In terms of precipitation, rainfall in Southeast Asia ranges from 10.0 - 320.0 inches per month. September is typically the wettest month, when rainfall can reach 320.0 mm. January is typically the driest time to visit Southeast Asia when rainfall is around 10.0 mm.

If weather is an important factor for your trip to Southeast Asia, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.0 C).

What are the most popular routes from London Heathrow Airport to Southeast Asia?

While some choose either London Heathrow - Bangkok Don Mueang Intl or London Heathrow - Kuala Lumpur Intl, London Heathrow - Bangkok Suvarnabhumi is the most popular route from London Heathrow Airport to Southeast Asia.

What are the cheapest flights from London Heathrow Airport to Southeast Asia?

Looking for the cheapest flight from London Heathrow Airport to Southeast Asia? While on average our users pay £2,667, our data indicates the cheapest price to be £486. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £435.

What are the most popular airlines that fly from London Heathrow Airport to Southeast Asia?

The most popular airlines flying from London Heathrow Airport to Southeast Asia are Etihad Airways, Qatar Airways and Cathay Pacific. Something to consider prior to booking your flight.

Can I find deals for flights from Heathrow to Southeast Asia that include hotel bookings?

Yes. In addition to deals on Heathrow to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Heathrow to Southeast Asia?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Southeast Asia.

Can I find deals for business class flights from Heathrow to Southeast Asia?

Yes. Cheapflights offers flight deals from Heathrow to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£248+ Cheap Flights from London Heathrow Airport to Southeast Asia

Cheap flight deals from Heathrow to Southeast Asia

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Heathrow to Southeast Asia
Explore the most affordable flight options available from Heathrow to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Thu 29/1022:00 -

1 stop18h 15m

Fri 27/1108:15 -

1 stop17h 20m

Deal found 13/8£422

Tue 3/1122:00 -

1 stop29h 40m

Tue 1/1215:45 -

1 stop33h 50m

Deal found 13/8£423

Sat 21/1122:00 -

1 stop33h 45m

Mon 30/1119:45 -

1 stop29h 50m

Deal found 13/8£424

Sun 8/1122:00 -

1 stop18h 15m

Tue 17/1119:45 -

1 stop29h 50m

Deal found 13/8£425

Sun 1/1122:00 -

1 stop18h 15m

Sun 22/1119:45 -

1 stop29h 50m

Deal found 11/8£425

Wed 11/1122:00 -

1 stop18h 15m

Mon 16/1119:45 -

1 stop29h 50m

Deal found 11/8£426

Tue 3/1121:00 -

1 stop21h 45m

Mon 23/1102:45 -

1 stop21h 45m

Deal found 11/8£427

Tue 3/1121:00 -

1 stop21h 45m

Mon 30/1102:45 -

1 stop21h 45m

Deal found 10/8£428

Fri 18/922:10 -

1 stop29h 55m

Wed 14/1019:45 -

1 stop29h 35m

Deal found 9/8£428

Sat 19/922:10 -

1 stop34h 35m

Sat 3/1011:05 -

1 stop38h 15m

Deal found 11/8£429

Mon 28/920:50 -

3 stops35h 10m

Mon 5/1015:05 -

1 stop34h 45m

Deal found 14/8£430

Mon 7/922:40 -

1 stop31h 15m

Mon 5/1013:25 -

1 stop34h 15m

Deal found 14/8£431

Best flights from Heathrow to Southeast Asia
Discover carefully curated flight deals from Heathrow to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Wed 9/922:05 -

1 stop20h 35m

Mon 21/902:55 -

1 stop23h 55m

Deal found 9/8£506

Fri 4/914:45 -

1 stop15h 45m

Sat 17/1003:20 -

1 stop15h 25m

Deal found 10/8£596

Tue 13/1019:25 -

Nonstop13h 45m

Thu 22/1022:40 -

Nonstop13h 55m

Deal found 10/8£597

Tue 10/1117:50 -

2 stops21h 00m

Wed 25/1119:45 -

2 stops20h 00m

Deal found 9/8£622

Wed 13/109:05 -

2 stops25h 20m

Wed 3/219:45 -

2 stops26h 20m

Deal found 12/8£640

Fri 4/1207:05 -

2 stops20h 30m

Fri 18/1212:35 -

1 stop16h 05m

Deal found 9/8£657

Sun 27/920:50 -

2 stops40h 15m

Sun 4/1010:05 -

2 stops26h 25m

Deal found 13/8£673

Fri 15/120:05 -

2 stops42h 45m

Tue 26/119:45 -

2 stops20h 20m

Deal found 13/8£684

Sat 19/913:15 -

1 stop41h 15m

Sat 3/1008:25 -

1 stop41h 35m

Deal found 14/8£685

Tue 13/1010:00 -

1 stop17h 45m

Thu 15/419:15 -

1 stop17h 20m

Deal found 9/8£717

Thu 12/1120:20 -

1 stop16h 50m

Thu 26/1123:00 -

1 stop21h 50m

Deal found 13/8£724

Sun 20/908:40 -

2 stops18h 35m

Tue 29/912:05 -

2 stops28h 25m

Deal found 13/8£730

Mon 21/915:05 -

1 stop16h 45m

Tue 1/1219:40 -

1 stop17h 40m

Deal found 9/8£740

Tue 15/911:45 -

2 stops24h 45m

Wed 30/907:35 -

2 stops31h 25m

Deal found 11/8£766

Mon 9/1111:00 -

1 stop19h 10m

Mon 16/1100:20 -

Nonstop13h 55m

Deal found 9/8£819

Wed 11/1121:20 -

Nonstop11h 40m

Tue 15/1212:40 -

Nonstop13h 25m

Deal found 12/8£821

Sun 20/911:00 -

1 stop24h 30m

Tue 17/1119:15 -

1 stop18h 20m

Deal found 9/8£884

Wed 7/1009:25 -

1 stop20h 45m

Wed 28/1014:00 -

1 stop23h 55m

Deal found 11/8£992

Sun 17/121:10 -

1 stop20h 30m

Tue 26/102:55 -

1 stop24h 15m

Deal found 13/8£506

Thu 24/922:00 -

1 stop21h 50m

Sat 5/1202:50 -

1 stop23h 20m

Deal found 9/8£531

Tue 17/1119:20 -

1 stop33h 25m

Mon 14/1219:55 -

1 stop23h 10m

Deal found 9/8£598

Sat 19/908:25 -

2 stops43h 35m

Wed 30/910:05 -

2 stops39h 05m

Deal found 13/8£674

Fri 29/118:45 -

Nonstop13h 20m

Sat 13/223:15 -

Nonstop14h 30m

Deal found 9/8£695

Fri 15/107:05 -

2 stops20h 30m

Sun 31/112:35 -

2 stops31h 20m

Deal found 12/8£699

Mon 23/1121:10 -

1 stop21h 40m

Thu 26/1102:50 -

1 stop23h 20m

Deal found 13/8£583

Sun 13/910:00 -

2 stops22h 05m

Sun 20/914:45 -

2 stops22h 10m

Deal found 14/8£722

Wed 23/919:50 -

1 stop18h 55m

Tue 13/1023:50 -

1 stop18h 35m

Deal found 13/8£724

Mon 28/919:30 -

2 stops17h 20m

Thu 15/1020:55 -

2 stops18h 25m

Deal found 9/8£725

Sun 22/1109:00 -

2 stops18h 45m

Mon 21/1213:15 -

1 stop15h 25m

Deal found 9/8£725

Sun 8/1119:10 -

2 stops36h 10m

Mon 23/1116:20 -

1 stop22h 10m

Deal found 13/8£735

Find flight deals from Heathrow to Southeast Asia

Round-trip from	£422
One-way from	£248
Popular in	December
Cheapest in	September
Average price	£697

China Southern
29/10-27/11
2 total stops
35h 35m total
London to Southeast Asia

Search Deals

14/9
2 total stops
43h 10m total
London to Southeast Asia

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£35 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£16 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights 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

LondonManila

LHR London Heathrow - MNL Manila Ninoy Aquino Intl

LHRMNL

London Heathrow

Wed 9/9

22:05-01:40

1 stop20h 35m

Manila Ninoy Aquino Intl

Mon 21/9

02:55-19:50

1 stop23h 55m

£506

LondonManila

LHR London Heathrow - MNL Manila Ninoy Aquino Intl

LHRMNL

London Heathrow

Sun 17/1

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Tue 26/1

02:55-19:10

1 stop24h 15m

£506

LondonHo Chi Minh City

LHR London Heathrow - SGN Ho Chi Minh City

LHRSGN

London Heathrow

Thu 24/9

22:00-01:50

1 stop21h 50m

Ho Chi Minh City

Sat 5/12

02:50-19:10

1 stop23h 20m

£531

LondonHo Chi Minh City

LHR London Heathrow - SGN Ho Chi Minh City

LHRSGN

London Heathrow

Mon 23/11

21:10-01:50

1 stop21h 40m

Ho Chi Minh City

Thu 26/11

02:50-19:10

1 stop23h 20m

£583

LondonPhuket City

LHR London Heathrow - HKT Phuket City

LHRHKT

London Heathrow

Fri 4/9

14:45-12:30

1 stop15h 45m

Phuket City

Sat 17/10

03:20-12:45

1 stop15h 25m

£596

LondonSingapore

LHR London Heathrow - SIN Singapore Changi

LHRSIN

London Heathrow

Tue 13/10

19:25-16:10

Nonstop13h 45m

Singapore Changi

Thu 22/10

22:40-05:35

Nonstop13h 55m

£597

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Tue 17/11

19:20-11:45

1 stop33h 25m

Bangkok Suvarnabhumi

Mon 14/12

19:55-12:05

1 stop23h 10m

£598

LondonManila

LHR London Heathrow - MNL Manila Ninoy Aquino Intl

LHRMNL

London Heathrow

Tue 10/11

17:50-22:50

2 stops21h 00m

Manila Ninoy Aquino Intl

Wed 25/11

19:45-07:45

2 stops20h 00m

£622

LondonManila

LHR London Heathrow - MNL Manila Ninoy Aquino Intl

LHRMNL

London Heathrow

Wed 13/1

09:05-18:25

2 stops25h 20m

Manila Ninoy Aquino Intl

Wed 3/2

19:45-14:05

2 stops26h 20m

£640

LondonBangkok

LHR London Heathrow - BKK Bangkok Suvarnabhumi

LHRBKK

London Heathrow

Fri 4/12

07:05-10:35

2 stops20h 30m

Bangkok Suvarnabhumi

Fri 18/12

12:35-21:40

1 stop16h 05m

£657

Flights are sorted by cheapest return flights first.

Deals found on 13/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

Best time to book a flight from Heathrow to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Heathrow with our price prediction graph.

LHR-HKT

LHR-BKK

LHR-HAN

LHR-MNL

LHR-SIN

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Southeast Asia

LHR-zzYJX

LHR-HKT

LHR-BKK

LHR-HAN

LHR-MNL

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Asia?

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of £615). Flying from London Heathrow Airport to Southeast Asia in December is currently the most expensive (average of £1,025). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LHR to YJX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Southeast Asia as you normally would.

Weekly flight availability from London Heathrow Airport to Southeast Asia

The most flights from LHR to zzYJX are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

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

The price you pay for your flight from London Heathrow Airport to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Southeast Asia

Check out reviews from past customers who have flown with Singapore Airlines,Cathay Pacific, andQatar Airways from London Heathrow Airport to Southeast Asia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Singapore Airlines

8.2

Very Good

1,583 reviews

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Cathay Pacific

7.6

Good

1,451 reviews

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Qatar Airways

7.4

Good

3,739 reviews

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Air China

7.4

Good

160 reviews

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Etihad Airways

7.3

Good

1,505 reviews

Singapore Airlines

8.2

Very Good

1,583 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Nov 2024

SIN - JNB

Cabin crew in business class was just so amazing, friendly, caring and professional

Related info for your journey

How long is the flight from London Heathrow Airport to Southeast Asia?
Shenzhen Airlines, Etihad Airways, and British Airways can get you from London Heathrow Airport to Southeast Asia in just under 13h 45m. Your travel time can differ by up to 6h 50m. The distance between London Heathrow Airport and Southeast Asia is about 6757 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the cheapest airlines to fly from London Heathrow Airport to Southeast Asia one-way?
The cheapest airline one-way is Hainan Airlines, with whom users have recently found tickets for as low as £181. However, be on the lookout for offers from SAUDIA and Air China, as they are both options that can get you from London Heathrow Airport to Southeast Asia for a low price.
What are the most popular routes from London Heathrow Airport to Southeast Asia?
While some choose either London Heathrow - Bangkok Don Mueang Intl or London Heathrow - Kuala Lumpur Intl, London Heathrow - Bangkok Suvarnabhumi is the most popular route from London Heathrow Airport to Southeast Asia.
What are the most reliable airlines from London Heathrow Airport to Southeast Asia?
The top 3 most reliable airlines when flying from London Heathrow Airport to Southeast Asia are Thai Airways (87%), EVA Air (87%) and Air Canada (83%).
What are the cheapest flights from London Heathrow Airport to Southeast Asia?
Looking for the cheapest flight from London Heathrow Airport to Southeast Asia? While on average our users pay £2,667, our data indicates the cheapest price to be £486. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £435.
Can I find deals for flights from Heathrow to Southeast Asia that include hotel bookings?
Yes. In addition to deals on Heathrow to Southeast Asia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Heathrow to Southeast Asia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Southeast Asia.
Can I find deals for business class flights from Heathrow to Southeast Asia?
Yes. Cheapflights offers flight deals from Heathrow to Southeast Asia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London Heathrow Airport to Southeast Asia?
Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of £615). Flying from London Heathrow Airport to Southeast Asia in December is currently the most expensive (average of £1,025). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Heathrow to Southeast Asia

Airline	Cheapest	Average	Flexibility	On-time
HK Express	Cheapest£103	Average£125	FlexibilityNo cancel fee	On-time90%	Search HK Express flights
Scandinavian Airlines	Cheapest£282	Average£636	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Hainan Airlines	Cheapest£285	Average£420	FlexibilityNo cancel fee	On-time61%	Search Hainan Airlines flights
Norse Atlantic UK	Cheapest£292	Average£584	FlexibilityNo cancel fee	On-timeN/A	Search Norse Atlantic UK flights
XiamenAir	Cheapest£296	Average£438	FlexibilityNo cancel fee	On-time49%	Search XiamenAir flights
Royal Jordanian	Cheapest£406	Average£678	FlexibilityNo cancel fee	On-time61%	Search Royal Jordanian flights
Condor	Cheapest£447	Average£613	FlexibilityNo cancel fee	On-time76%	Search Condor flights
ITA Airways	Cheapest£470	Average£544	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Finnair	Cheapest£473	Average£815	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£478	Average£875	FlexibilityNo cancel fee	On-time75%	Search KLM flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Southeast Asia?

When you search for this flight from Heathrow to Southeast Asia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Southeast Asia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Southeast Asia from Heathrow.

Can Cheapflights find flights from Heathrow to Southeast Asia with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Heathrow to Southeast Asia, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Heathrow to Southeast Asia become cheaper?

Yes! Start tracking prices for Heathrow to Southeast Asia flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Cheap flights from London Heathrow Airport to Southeast Asia from £248

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Heathrow to Southeast Asia

Cheapest flights from Heathrow to Southeast AsiaExplore the most affordable flight options available from Heathrow to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Explore the most affordable flight options available from Heathrow to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Heathrow to Southeast AsiaDiscover carefully curated flight deals from Heathrow to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Discover carefully curated flight deals from Heathrow to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Direct flights from Heathrow to Southeast AsiaExplore direct flight options from Heathrow to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 August 2026.

Explore direct flight options from Heathrow to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 August 2026.

Last-minute flights from Heathrow to Southeast AsiaDiscover last-minute flight deals from Heathrow to Southeast Asia. Data last updated 14 August 2026 and is based on user searches.

Discover last-minute flight deals from Heathrow to Southeast Asia. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Heathrow to Southeast AsiaSearch for one-way flight options from Heathrow to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Search for one-way flight options from Heathrow to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.

Find flight deals from Heathrow to Southeast Asia

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Best time to book a flight from Heathrow to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from Heathrow with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Asia?

What is the cheapest time of day to fly from LHR to YJX?

Find hourly flight availability from Heathrow to Southeast Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 August 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Southeast Asia as you normally would.

Weekly flight availability from London Heathrow Airport to Southeast Asia

The most flights from LHR to zzYJX are scheduled on a Monday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (8 on average).

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

The price you pay for your flight from London Heathrow Airport to Southeast Asia may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Southeast Asia

Related info for your journey

How long is the flight from London Heathrow Airport to Southeast Asia?

What are the cheapest airlines to fly from London Heathrow Airport to Southeast Asia one-way?

What are the most popular routes from London Heathrow Airport to Southeast Asia?

What are the most reliable airlines from London Heathrow Airport to Southeast Asia?

What are the cheapest flights from London Heathrow Airport to Southeast Asia?

Can I find deals for flights from Heathrow to Southeast Asia that include hotel bookings?

How can I find direct flights from Heathrow to Southeast Asia?

Can I find deals for business class flights from Heathrow to Southeast Asia?

What is the cheapest month to book a flight from London Heathrow Airport to Southeast Asia?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Heathrow to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Southeast Asia by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to

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Heathrow and Southeast Asia flights

Browse other Heathrow and Southeast Asia flight options. Last updated on 14 August 2026.

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Heathrow to Southeast Asia flights

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Cheapest flights from Heathrow to Southeast Asia
Explore the most affordable flight options available from Heathrow to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 14 August 2026.

Best flights from Heathrow to Southeast Asia
Discover carefully curated flight deals from Heathrow to Southeast Asia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 14 August 2026.

Direct flights from Heathrow to Southeast Asia
Explore direct flight options from Heathrow to Southeast Asia based on user searches, and compare prices and availability for your desired travel dates. Data last updated 14 August 2026.

Last-minute flights from Heathrow to Southeast Asia
Discover last-minute flight deals from Heathrow to Southeast Asia. Data last updated 14 August 2026 and is based on user searches.

One-way flights from Heathrow to Southeast Asia
Search for one-way flight options from Heathrow to Southeast Asia. Find affordable one-way fares based on user searches. Data last updated 14 August 2026.