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Cheap flights from London Heathrow Airport to Southeast Asia from £237

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 28/8. 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.
LHR — BKK
27 May — 3 Jun1
1 adult
Mon 27/5
Mon 3/6

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

Travelers have found it’s best to book a flight 8 days in advance to save up to 7% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 8 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from London Heathrow Airport to Southeast Asia 1-2 weeks in advance for as low as £673, or £753 for flights within the next 24 hours.

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

Our data shows that May tends to be the cheapest month to fly to Southeast Asia from London Heathrow Airport. Users have commonly found prices around £722 for the month, but tickets can be as low as £445. Due to multiple factors, prepare for potentially higher prices in December.

When is the cheapest time to fly from London Heathrow Airport to Southeast Asia (LHR - 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.

Cheap China Southern flights from Heathrow to Southeast Asia

Explore cheap flight options specifically provided by China Southern for the route between Heathrow and Southeast Asia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
Find some of the cheapest China Southern flights travelling from London to Southeast Asia. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 17/922:10LHR - BKK
1 stop21h 20mChina Southern
Mon 14/1003:00BKK - LHR
1 stop22h 10mChina Southern
Deal found 22/5£451
Wed 19/620:50LHR - HAN
2 stops31h 55mChina Southern
Tue 2/708:15HAN - LHR
1 stop16h 55mChina Southern
Deal found 22/5£456
Wed 19/622:10LHR - BKK
1 stop32h 40mChina Southern
Wed 26/611:20BKK - LHR
1 stop37h 50mChina Southern
Deal found 22/5£457
Wed 19/622:10LHR - BKK
1 stop32h 40mChina Southern
Wed 26/615:55BKK - LHR
1 stop33h 15mChina Southern
Deal found 22/5£462
Wed 12/622:10LHR - KUL
1 stop20h 00mChina Southern
Wed 26/613:25KUL - LHR
1 stop36h 45mChina Southern
Deal found 21/5£463
Wed 12/619:15LHR - KUL
2 stops46h 15mChina Southern
Wed 26/602:20KUL - LHR
1 stop23h 50mChina Southern
Deal found 22/5£464
Wed 29/520:50LHR - KUL
2 stops44h 40mChina Southern
Mon 17/602:20KUL - LHR
1 stop23h 50mChina Southern
Deal found 22/5£489
Tue 28/520:50LHR - MNL
2 stops36h 45mChina Southern
Sun 30/611:55MNL - LHR
1 stop38h 15mChina Southern
Deal found 21/5£501
Tue 28/520:50LHR - CGK
2 stops44h 10mChina Southern
Wed 26/609:10CGK - LHR
1 stop40h 00mChina Southern
Deal found 21/5£505

Cheap SWISS flights from Heathrow to Southeast Asia

Explore cheap flight options specifically provided by SWISS for the route between Heathrow and Southeast Asia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
Have a look at some of the cheapest available SWISS flights departing from London and landing in Southeast Asia. Make sure to examine the flight information before completing your reservation.
Tue 17/912:05LHR - BKK
1 stop15h 35mSWISS
Tue 1/1012:45BKK - LHR
1 stop15h 00mSWISS
Deal found 21/5£461
Tue 17/912:05LHR - BKK
1 stop15h 35mSWISS
Tue 15/1012:45BKK - LHR
1 stop15h 00mSWISS
Deal found 22/5£470
Wed 5/613:45LHR - BKK
1 stop13h 55mSWISS
Tue 2/713:05BKK - LHR
1 stop14h 40mSWISS
Deal found 22/5£557

Cheap Heathrow to Southeast Asia flights in May & June 2024

Find cheap flight options from Heathrow to Southeast Asia specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 863,249 searches. Prices were last updated on 22 May 2024.
These are some of the best deals we've found on flights to Southeast Asia in 2024 at this time. For more flight deals, be sure to check back very soon.
Tue 25/622:00LHR - MNL
1 stop20h 30mAir China
Tue 2/706:25MNL - LHR
1 stop20h 35mAir China
Deal found 21/5£436
Tue 25/622:00LHR - MNL
1 stop20h 30mAir China
Mon 1/706:25MNL - LHR
1 stop20h 35mAir China
Deal found 21/5£446
Tue 25/622:00LHR - MNL
1 stop20h 30mAir China
Tue 2/706:25MNL - LHR
1 stop20h 35mAir China
Deal found 22/5£446
Wed 19/622:10LHR - MNL
1 stop18h 05mChina Southern
Wed 26/608:20MNL - LHR
1 stop17h 50mChina Southern
Deal found 22/5£453
Wed 12/622:10LHR - MNL
1 stop18h 05mChina Southern
Wed 26/608:20MNL - LHR
1 stop17h 50mChina Southern
Deal found 21/5£454
Wed 19/622:10LHR - BKK
1 stop32h 40mChina Southern
Wed 26/611:20BKK - LHR
1 stop37h 50mChina Southern
Deal found 22/5£457
Thu 20/622:10LHR - SGN
1 stop17h 40mChina Southern
Tue 2/702:35SGN - LHR
1 stop22h 35mChina Southern
Deal found 22/5£462
Wed 19/622:10LHR - BKK
1 stop32h 40mChina Southern
Wed 26/615:55BKK - LHR
1 stop33h 15mChina Southern
Deal found 22/5£462
Tue 4/620:50LHR - HAN
2 stops31h 55mChina Southern
Sat 22/608:15HAN - LHR
1 stop16h 55mChina Southern
Deal found 22/5£463

Heathrow to Southeast Asia 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and Southeast Asia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
These are some of the best deals we've found on flights to Southeast Asia in 2024 at this time. For more flight deals, be sure to check back very soon.
Thu 31/1022:05LHR - MNL
1 stop19h 20mAir China
Mon 16/1206:20MNL - LHR
1 stop19h 30mAir China
Deal found 22/5£411
Thu 7/1117:40LHR - MNL
1 stop22h 30mAir China
Thu 28/1106:20MNL - LHR
1 stop17h 35mAir China
Deal found 21/5£412
Thu 7/1117:40LHR - MNL
1 stop22h 30mAir China
Thu 28/1106:20MNL - LHR
1 stop19h 30mAir China
Deal found 22/5£421
Fri 8/1112:55LHR - CGK
1 stop21h 25mSAUDIA
Thu 5/1219:05CGK - LHR
2 stops26h 10mSAUDIA
Deal found 22/5£424
Fri 8/1116:15LHR - CGK
2 stops23h 25mSAUDIA
Thu 5/1219:05CGK - LHR
2 stops26h 10mSAUDIA
Deal found 22/5£428
Thu 28/1117:40LHR - MNL
1 stop22h 30mAir China
Thu 30/106:20MNL - LHR
1 stop17h 35mAir China
Deal found 22/5£429
Sat 21/920:25LHR - MNL
1 stop20h 40mAir China
Mon 28/1002:55MNL - LHR
1 stop25h 15mAir China
Deal found 21/5£431
Mon 11/1120:25LHR - MNL
1 stop19h 45mAir China
Fri 6/1202:55MNL - LHR
1 stop25h 15mAir China
Deal found 21/5£431
Tue 25/622:00LHR - MNL
1 stop20h 30mAir China
Tue 2/706:25MNL - LHR
1 stop20h 35mAir China
Deal found 21/5£436

Direct flights to Southeast Asia from Heathrow

Discover direct flight options from Heathrow to Southeast Asia. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
To help reduce your travel time, choose from one of these non-stop flights from London to Southeast Asia. Those looking to potentially save on 1 or 2-stop flights from London to Southeast Asia should utilise the search form at the top of the page.
Mon 21/1021:10LHR - SIN
Nonstop13h 35mBritish Airways
Sun 27/1023:15SIN - LHR
Nonstop14h 15mBritish Airways
Deal found 22/5£541
Wed 5/621:10LHR - SIN
Nonstop13h 35mBritish Airways
Wed 12/623:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£549
Thu 3/1019:35LHR - SIN
Nonstop13h 30mBritish Airways
Tue 15/1023:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£552
Mon 3/619:35LHR - SIN
Nonstop13h 30mBritish Airways
Mon 17/623:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£552
Fri 1/1110:55LHR - SIN
Nonstop12h 55mSingapore Airlines
Sat 16/1109:00SIN - LHR
Nonstop14h 20mSingapore Airlines
Deal found 22/5£554
Thu 13/619:35LHR - SIN
Nonstop13h 30mBritish Airways
Thu 27/623:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£558
Tue 4/621:10LHR - SIN
Nonstop13h 35mBritish Airways
Tue 18/622:35SIN - LHR
Nonstop13h 50mBritish Airways
Deal found 22/5£560
Sun 22/919:35LHR - SIN
Nonstop13h 30mBritish Airways
Mon 30/923:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£561
Thu 3/1019:35LHR - SIN
Nonstop13h 30mBritish Airways
Sun 13/1023:20SIN - LHR
Nonstop14h 10mBritish Airways
Deal found 22/5£562

Heathrow to Southeast Asia flights leaving soon

Find last-minute flight options from Heathrow to Southeast Asia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
Have a look at some of the flights available from London to Southeast Asia departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.
Mon 27/521:45LHR - CGK
1 stop19h 00mSAUDIA
Thu 10/1017:30CGK - LHR
1 stop19h 10mSAUDIA
Deal found 21/5£451
Mon 27/521:45LHR - CGK
1 stop19h 00mSAUDIA
Wed 9/1000:40CGK - LHR
1 stop22h 45mSAUDIA
Deal found 21/5£467
Sat 1/621:45LHR - CGK
1 stop19h 00mSAUDIA
Fri 28/600:40CGK - LHR
1 stop19h 05mSAUDIA
Deal found 21/5£472
Thu 23/520:25LHR - BKK
1 stop16h 10mAir China
Tue 4/601:15BKK - LHR
1 stop24h 45mAir China
Deal found 22/5£474
Thu 30/522:05LHR - BKK
1 stop22h 35mGulf Air
Mon 17/615:45BKK - LHR
1 stop21h 10mGulf Air
Deal found 22/5£475
Wed 5/622:05LHR - BKK
1 stop29h 25mGulf Air
Sun 16/615:45BKK - LHR
1 stop29h 35mGulf Air
Deal found 21/5£475
Thu 30/522:05LHR - BKK
1 stop22h 35mGulf Air
Sat 15/604:00BKK - LHR
1 stop17h 20mGulf Air
Deal found 21/5£476
Tue 28/522:05LHR - BKK
1 stop22h 35mGulf Air
Wed 19/615:45BKK - LHR
1 stop21h 10mGulf Air
Deal found 22/5£477
Sat 1/622:05LHR - BKK
1 stop29h 25mGulf Air
Thu 13/604:00BKK - LHR
1 stop17h 20mGulf Air
Deal found 22/5£479

One-way flights to Southeast Asia from Heathrow

Search for one-way flight options from Heathrow to Southeast Asia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.
Take a look at some of the one-way flights we've detected from London to Southeast Asia. Users needing a return flight from London to Southeast Asia should utilize the search form above.
Wed 28/807:30LHR - BKK
1 stop16h 20mMultiple Airlines
Deal found 22/5£237
Tue 13/819:30LHR - BKK
1 stop28h 20mMultiple Airlines
Deal found 22/5£246
Wed 21/807:30LHR - BKK
1 stop16h 20mMultiple Airlines
Deal found 22/5£255
Tue 13/819:50LHR - BKK
2 stops28h 00mMultiple Airlines
Deal found 22/5£273
Fri 16/821:05LHR - BKK
2 stops31h 00mMultiple Airlines
Deal found 22/5£281
Sat 8/620:50LHR - BKK
3 stops29h 00mMultiple Airlines
Deal found 22/5£284
Mon 10/621:40LHR - HKT
3 stops42h 50mMultiple Airlines
Deal found 21/5£285
Sun 9/622:10LHR - KUL
1 stop35h 50mChina Southern
Deal found 22/5£292
Tue 4/622:10LHR - KUL
1 stop20h 00mChina Southern
Deal found 22/5£292

Find flights from Heathrow to Southeast Asia within your budget

Customise your flight search to find flights from Heathrow to Southeast Asia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 863,249 searches. Data last updated 22 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£422 - £496

Route

Depart

Return

Price

London HeathrowJakarta Soekarno-Hatta Intl

LHR - CGK

LHRCGK

London Heathrow

Mon 16/9

1 stop19h 00m

Jakarta Soekarno-Hatta Intl

Thu 26/9

1 stop19h 10m

£422

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Tue 17/9

1 stop21h 20m

Bangkok Suvarnabhumi

Mon 14/10

1 stop22h 10m

£451

London HeathrowKuala Lumpur Intl

LHR - KUL

LHRKUL

London Heathrow

Fri 15/11

1 stop22h 00m

Kuala Lumpur Intl

Sat 23/11

1 stop22h 50m

£452

London HeathrowKuala Lumpur Intl

LHR - KUL

LHRKUL

London Heathrow

Wed 19/6

1 stop19h 35m

Kuala Lumpur Intl

Mon 1/7

1 stop26h 50m

£459

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Tue 17/9

1 stop15h 35m

Bangkok Suvarnabhumi

Tue 1/10

1 stop15h 00m

£461

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Wed 18/9

1 stop22h 50m

Bangkok Suvarnabhumi

Wed 9/10

1 stop25h 10m

£465

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Mon 10/6

1 stop22h 35m

Bangkok Suvarnabhumi

Mon 17/6

1 stop21h 10m

£472

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Tue 3/9

1 stop16h 10m

Bangkok Suvarnabhumi

Mon 16/9

1 stop16h 10m

£494

London HeathrowBangkok Suvarnabhumi

LHR - BKK

LHRBKK

London Heathrow

Thu 12/9

1 stop19h 30m

Bangkok Suvarnabhumi

Fri 11/10

1 stop26h 10m

£496

Flights are sorted by cheapest first

Deals found on 21/5

No data available for this route at this time. Please check back soon.

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.
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.

Reviews of airlines servicing Southeast Asia

Get insights into the airlines that provide service to Southeast Asia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Southeast Asia. Reviews last updated 22 May 2024.
Get a feel of what it's like to fly with China Southern, SWISS and Gulf Air from London to Southeast Asia by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.4
Very Good
574 reviews

Crew

8.6

Comfort

8.2

Boarding

8.5

Overall

8.4

Food

8.2

Entertainment

7.9

Reviews

1 / 10

Flight was delayed, ground crew was not helpful. There’s little communication when boarding. Food was okay. Overall experience was okay.

8.4
Very Good
574 reviews
8.4
Very Good
574 reviews

Crew

8.6

Comfort

8.2

Boarding

8.5

Overall

8.4

Food

8.2

Entertainment

7.9

Reviews

1 / 10

Flight was delayed, ground crew was not helpful. There’s little communication when boarding. Food was okay. Overall experience was okay.

8.3
Very Good
901 reviews
8.4
Very Good
574 reviews

Crew

8.6

Comfort

8.2

Boarding

8.5

Overall

8.4

Food

8.2

Entertainment

7.9

Reviews

1 / 10

Flight was delayed, ground crew was not helpful. There’s little communication when boarding. Food was okay. Overall experience was okay.

8.2
Very Good
1,436 reviews
8.4
Very Good
574 reviews

Crew

8.6

Comfort

8.2

Boarding

8.5

Overall

8.4

Food

8.2

Entertainment

7.9

Reviews

1 / 10

Flight was delayed, ground crew was not helpful. There’s little communication when boarding. Food was okay. Overall experience was okay.

8.1
Very Good
3,938 reviews
8.4
Very Good
574 reviews

Crew

8.6

Comfort

8.2

Boarding

8.5

Overall

8.4

Food

8.2

Entertainment

7.9

Reviews

1 / 10

Flight was delayed, ground crew was not helpful. There’s little communication when boarding. Food was okay. Overall experience was okay.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Southeast Asia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from London Heathrow Airport to Southeast Asia for under £500 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to Southeast Asia for under £500. The cheapest flight booked recently is on SAUDIA for just £422, but on average you can expect to pay £444.

  • Are there nonstop flights from London Heathrow Airport to Southeast Asia for under £600 on Cheapflights?

    Cheapflights has at least 20 direct flights from London Heathrow Airport to Southeast Asia under £600. A good price for a nonstop flight from London Heathrow Airport to Southeast Asia is less than £563.

  • Are there last-minute flights available from London Heathrow Airport to Southeast Asia for under £500?

    There are currently 20+ open flights from London Heathrow Airport to Southeast Asia within the next 7 days for less than £500.

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

    The cheapest airline one-way is China Southern, with whom users have recently found tickets for as low as £292. However, be on the lookout for offers from SAUDIA and China Eastern, 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?

  • 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 Air Canada (45%), Thai Airways (40%) and EVA Air (29%).

  • 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 £2,704, our data indicates the cheapest price to be £439. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £454.

  • What does LHR to BKK mean?

    This is defined as London Heathrow Airport (LHR) and Bangkok Suvarnabhumi Airport (BKK). Codes like Bangkok Suvarnabhumi Airport are often used to just call airports uniquely. Manila Ninoy Aquino Intl Airport (MNL), Singapore Changi Airport (SIN), Ho Chi Minh City Airport (SGN), Phuket City Airport (HKT), Da Nang Airport (DAD) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Heathrow to Southeast Asia that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to Southeast Asia flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to Southeast Asia with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to Southeast Asia flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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.

  • Can I find deals for flights from Heathrow to Southeast Asia that allow pets onboard?

    Many airlines flying from Heathrow to Southeast Asia offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to Southeast Asia?

    Yes, you can often find last-minute deals on Heathrow to Southeast Asia flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to Southeast Asia flight deals updated?

    The London Heathrow Airport to Southeast Asia flight deals you see on this page were last updated on 22/5.

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

  • When is the best time to book a flight from London Heathrow Airport to Southeast Asia?

    Currently, May is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of £792). Flying from London Heathrow Airport to Southeast Asia in July is currently the most expensive (average of £1,012). 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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Alternative routes for Heathrow to Southeast Asia
See prices for flight routes from nearby airports that may be better suited for you.