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Cheap flights from London Heathrow Airport to Southeast Asia from $663

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 16/2. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
23 Dec — 30 Dec1
1 adult

Cheap flight deals from Heathrow to Southeast Asia

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Southeast Asia (zzYJX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 December 2024.

Round-trip from

$1,007

One-way from

$663
Gulf Air
  • Gulf Air
  • 1/2-15/2
  • 2 total stops
  • 48h 50m total
  • London to Southeast Asia
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 16/2
  • 1 total stop
  • 36h 20m total
  • London to Southeast Asia
Search Deals

Find flight deals from Heathrow to Southeast Asia

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 18 December 2024.

Sun 29/1219:20LHR - BKK
1 stop21h 15mEtihad Airways
Mon 20/108:50BKK - LHR
1 stop28h 55mEtihad Airways
Deal found 17/12$1,358
Mon 30/1221:10LHR - BKK
1 stop21h 55mShenzhen Airlines
Thu 6/219:30BKK - LHR
1 stop30h 40mShenzhen Airlines
Deal found 16/12$1,463
Wed 25/1217:30LHR - SIN
1 stop15h 20mMultiple Airlines
Tue 14/100:05SIN - LHR
1 stop16h 00mMultiple Airlines
Deal found 17/12$1,485
Tue 31/1220:05LHR - SIN
1 stop37h 50mSWISS
Wed 5/300:05SIN - LHR
1 stop16h 00mSWISS
Deal found 17/12$1,492
Tue 31/1208:45LHR - BKK
1 stop15h 35mAir India
Fri 28/214:35BKK - LHR
1 stop35h 20mAir India
Deal found 16/12$1,574
Tue 31/1221:30LHR - BKK
2 stops30h 55mChina Southern
Fri 28/208:05BKK - LHR
1 stop17h 10mChina Southern
Deal found 16/12$1,588
Tue 31/1220:25LHR - BKK
1 stop18h 05mAir China
Fri 28/222:40BKK - LHR
1 stop26h 10mAir China
Deal found 17/12$1,596
Mon 30/1221:10LHR - KUL
1 stop38h 20mShenzhen Airlines
Tue 28/104:30KUL - LHR
1 stop22h 40mShenzhen Airlines
Deal found 17/12$1,604
Tue 31/1220:15LHR - BKK
1 stop33h 15mEthiopian Air
Sun 12/101:35BKK - LHR
1 stop36h 00mEthiopian Air
Deal found 17/12$1,621
Tue 31/1220:55LHR - KUL
1 stop27h 00mEtihad Airways
Tue 1/410:00KUL - LHR
1 stop27h 45mEtihad Airways
Deal found 17/12$1,624
Tue 31/1209:00LHR - SIN
1 stop16h 35mEtihad Airways
Thu 16/119:25SIN - LHR
1 stop31h 00mEtihad Airways
Deal found 17/12$1,700
Mon 30/1220:05LHR - BKK
1 stop27h 40mOman Air
Thu 16/120:05BKK - LHR
1 stop29h 20mOman Air
Deal found 17/12$1,756

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 647,157 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 17/4

09:45-07:40

1 stop15h 55m

Bangkok Suvarnabhumi

Sat 3/5

15:05-07:30

1 stop22h 25m

$970

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 1/2

21:50-12:30

1 stop30h 40m

Singapore Changi

Sat 15/2

20:25-06:35

1 stop18h 10m

$1,007

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 6/3

17:50-00:45

3 stops23h 55m

Bangkok Suvarnabhumi

Wed 12/3

13:35-13:55

1 stop31h 20m

$1,016

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 21/1

19:35-09:00

1 stop29h 25m

Singapore Changi

Tue 11/2

10:50-21:25

1 stop18h 35m

$1,022

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 31/1

21:10-18:30

1 stop38h 20m

Bangkok Suvarnabhumi

Fri 28/2

19:30-19:10

1 stop30h 40m

$1,025

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 22/1

21:05-07:45

2 stops26h 40m

Singapore Changi

Tue 28/1

08:20-11:30

1 stop35h 10m

$1,029

LondonPhuket City

LHR - HKT

LHRHKT

London Heathrow

Sat 1/2

21:10-16:20

1 stop36h 10m

Phuket City

Tue 18/2

17:25-19:10

1 stop32h 45m

$1,030

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 23/5

08:40-09:30

1 stop18h 50m

Bangkok Suvarnabhumi

Wed 11/6

11:35-21:25

1 stop15h 50m

$1,051

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 21/1

09:00-09:35

1 stop16h 35m

Singapore Changi

Tue 11/2

19:25-18:25

1 stop31h 00m

$1,059

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 16/3

09:30-09:15

1 stop16h 45m

Bangkok Suvarnabhumi

Thu 19/6

19:15-14:45

1 stop25h 30m

$1,074

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 60 results
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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.

Travel insights for flights from Heathrow to Southeast Asia

Get recent, data-driven insights about flights from Heathrow to Southeast Asia including ideal travel times, pricing trends, and more.

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

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of $489). Flying from London Heathrow Airport to Southeast Asia in December is currently the most expensive (average of $808). 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?

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 18 December 2024.

When flying from London Heathrow Airport to Southeast Asia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from London Heathrow Airport to Southeast Asia

Explore weekly flight availability from Heathrow to Southeast Asia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 18 December 2024.

The most flights from LHR to zzYJX are scheduled on a Monday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average rainfall totals by month.

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.

Temperature in Southeast Asia by month

Plan your trip to Southeast Asia by taking into account the average temperature totals by month.

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).

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 18 December 2024.
Read reviews from past customers who have flown Finnair, Vietnam Airlines and Qatar Airways from London to Southeast Asia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

EVA Air
8.4
Very Good
1,269 reviews
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Korean Air
8.4
Very Good
1,018 reviews
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

China Airlines
8.3
Very Good
754 reviews
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Singapore Airlines
8.1
Very Good
1,329 reviews
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

Emirates
8.1
Very Good
3,412 reviews
EVA Air
8.4
Very Good
1,269 reviews
Check prices

Crew

8.6

Boarding

8.4

Comfort

8.2

Entertainment

8.0

Food

8.0

Overall

8.4

Reviews

1 / 10

The food was HORRIBLE, the flight crew looked as though they’d rather be getting a root canal, and the bathrooms were disgusting.

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.

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

    To fly one-way, consider booking your trip with Shenzhen Airlines, which is currently one of the cheapest options available, starting at $663. Air India flights start at $703 while deals on Gulf Air start at $729 one-way.

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

    The most popular route from London Heathrow Airport to Southeast Asia is London Heathrow - Bangkok Suvarnabhumi. You may also consider London Heathrow - Singapore Changi or London Heathrow - Denpasar Bali Ngurah Rai.

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

    Consider Air Canada (71%), Thai Airways (67%) or EVA Air (57%) when booking your flight. These represent the most reliable airlines when flying from London Heathrow Airport to Southeast Asia.

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

    Looking at all options, your cheapest flight can be booked for $698. While the most popular route (London Heathrow - Bangkok Suvarnabhumi) can be booked for $868 on average our data indicates $4,300 when flying from London Heathrow Airport to Southeast Asia.

  • 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, February is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of $489). Flying from London Heathrow Airport to Southeast Asia in December is currently the most expensive (average of $808). 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.
Heathrow to Suvarnabhumi flights
Heathrow to Singapore flights
Gatwick to Suvarnabhumi flights

Top 4 airlines flying from Heathrow to Southeast Asia

Discover the top 4 airlines that operate flights from Heathrow to Southeast Asia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest$896Average$1,105FlexibilityNo cancel feeOn-time67%
Search Air China flights
Singapore AirlinesCheapest$1,110Average$1,493FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Etihad AirwaysCheapest$1,377Average$1,382FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Thai AirwaysCheapest$1,478Average$1,635FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

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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?

Cheapflights helps you find that perfect flight to Southeast Asia from Heathrow by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Southeast Asia flexibly with Cheapflights today.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Southeast Asia from Heathrow today and book when prices fit your budget.

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