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Cheap flights from London Heathrow Airport to Southeast Asia from £298

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 15/1. 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

£456

One-way from

£298
Shenzhen Airlines
  • Shenzhen Airlines
  • 15/3-3/4
  • 2 total stops
  • 53h 30m total
  • London to Southeast Asia
Search Deals
15/1
  • 15/1
  • 2 total stops
  • 28h 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.

Mon 30/1220:25LHR - BKK
1 stop20h 45mAir China
Wed 22/101:30BKK - LHR
1 stop21h 25mAir China
Deal found 17/12£511
Fri 27/1221:00LHR - BKK
2 stops30h 05mHainan Airlines
Sun 19/111:10BKK - LHR
2 stops37h 45mHainan Airlines
Deal found 16/12£565
Sun 29/1221:30LHR - MNL
2 stops53h 20mChina Southern
Mon 10/312:00MNL - LHR
1 stop38h 15mChina Southern
Deal found 16/12£602
Tue 31/1208:45LHR - SIN
2 stops39h 00mAir India
Thu 6/308:45SIN - LHR
2 stops42h 45mAir India
Deal found 17/12£635
Sat 28/1220:05LHR - BKK
1 stop27h 40mOman Air
Mon 3/320:05BKK - LHR
1 stop29h 20mOman Air
Deal found 17/12£639
Tue 31/1213:30LHR - BKK
1 stop34h 50mAir India
Thu 30/115:05BKK - LHR
1 stop27h 25mAir India
Deal found 16/12£639
Tue 31/1217:50LHR - BKK
1 stop35h 30mChina Eastern
Sun 2/313:35BKK - LHR
1 stop34h 55mChina Eastern
Deal found 16/12£647
Mon 30/1209:00LHR - BKK
1 stop26h 00mEtihad Airways
Sun 26/102:15BKK - LHR
1 stop35h 30mEtihad Airways
Deal found 16/12£650
Wed 18/1206:40LHR - BKK
3 stops28h 05mMultiple Airlines
Thu 26/1213:25BKK - LHR
Nonstop13h 10mMultiple Airlines
Deal found 16/12£654
Tue 31/1222:00LHR - HAN
1 stop33h 45mChina Southern
Tue 4/315:45HAN - LHR
2 stops29h 15mChina Southern
Deal found 17/12£665
Tue 31/1211:40LHR - KUL
2 stops54h 15mMultiple Airlines
Mon 31/302:25KUL - LHR
1 stop20h 45mMultiple Airlines
Deal found 17/12£685
Tue 31/1222:00LHR - KUL
1 stop35h 10mChina Southern
Tue 1/418:00KUL - LHR
1 stop32h 05mChina Southern
Deal found 16/12£687

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 858,174 searches. Data last updated 18 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Sat 15/3

21:10-09:50

1 stop29h 40m

Hanoi Noibai

Thu 3/4

02:10-20:00

1 stop23h 50m

£456

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 20/1

21:00-10:05

2 stops30h 05m

Bangkok Suvarnabhumi

Sun 2/2

11:10-17:55

2 stops37h 45m

£466

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Thu 9/1

21:35-16:40

1 stop36h 05m

Bangkok Suvarnabhumi

Wed 19/2

01:30-15:55

1 stop21h 25m

£467

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Mon 10/3

20:25-11:55

1 stop32h 30m

Hanoi Noibai

Tue 25/3

13:25-17:50

1 stop35h 25m

£469

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 25/2

22:00-10:10

1 stop29h 10m

Bangkok Suvarnabhumi

Tue 11/3

08:05-18:15

1 stop17h 10m

£470

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 13/5

09:45-07:40

1 stop15h 55m

Bangkok Suvarnabhumi

Sat 24/5

08:40-19:00

1 stop16h 20m

£472

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 14/1

21:30-22:30

2 stops41h 00m

Manila Ninoy Aquino Intl

Fri 14/3

08:20-18:15

1 stop17h 55m

£476

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Tue 14/1

21:35-01:25

1 stop19h 50m

Manila Ninoy Aquino Intl

Thu 13/2

02:55-19:10

1 stop24h 15m

£480

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 16/3

21:10-01:40

1 stop20h 30m

Manila Ninoy Aquino Intl

Sat 29/3

02:55-19:00

1 stop24h 05m

£481

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 20/1

17:50-00:55

1 stop24h 05m

Bangkok Suvarnabhumi

Wed 19/3

01:55-13:55

1 stop19h 00m

£482

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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of £791). Flying from London Heathrow Airport to Southeast Asia in July is currently the most expensive (average of £973). 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.

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

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.
Get a feel of what it's like to fly with Hainan Airlines, Air China and China Southern 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.
Asiana Airlines
8.3
Very Good
477 reviews
Check prices

Crew

8.5

Entertainment

7.8

Overall

8.3

Boarding

8.4

Comfort

8.1

Food

8.1

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Asiana Airlines
8.3
Very Good
477 reviews
Asiana Airlines
8.3
Very Good
477 reviews
Check prices

Crew

8.5

Entertainment

7.8

Overall

8.3

Boarding

8.4

Comfort

8.1

Food

8.1

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Singapore Airlines
8.1
Very Good
1,329 reviews
Asiana Airlines
8.3
Very Good
477 reviews
Check prices

Crew

8.5

Entertainment

7.8

Overall

8.3

Boarding

8.4

Comfort

8.1

Food

8.1

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

Emirates
8.1
Very Good
3,412 reviews
Asiana Airlines
8.3
Very Good
477 reviews
Check prices

Crew

8.5

Entertainment

7.8

Overall

8.3

Boarding

8.4

Comfort

8.1

Food

8.1

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

KLM
7.8
Good
1,349 reviews
Asiana Airlines
8.3
Very Good
477 reviews
Check prices

Crew

8.5

Entertainment

7.8

Overall

8.3

Boarding

8.4

Comfort

8.1

Food

8.1

Reviews

1 / 10

Next time I never flight with Asiana Airlines, not anymore, this is my first time also my last time

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?

    The cheapest airline one-way is Air China, with whom users have recently found tickets for as low as £301. However, be on the lookout for offers from Shenzhen Airlines and Hainan Airlines, 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 - Kuala Lumpur Intl or London Heathrow - Bangkok Don Mueang 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 Air Canada (71%), Thai Airways (67%) and EVA Air (57%).

  • 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 £2,412, our data indicates the cheapest price to be £360. The most popular route (London Heathrow - Bangkok Suvarnabhumi), is priced around £420.

  • 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, May is the cheapest month in which you can book a flight from London Heathrow Airport to Southeast Asia (average of £791). Flying from London Heathrow Airport to Southeast Asia in July is currently the most expensive (average of £973). 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
Gatwick to Suvarnabhumi flights
London City to Suvarnabhumi flights
Stansted to Suvarnabhumi flights
Heathrow to Haneda flights
Heathrow to New Delhi flights
Heathrow to Don Mueang Intl flights
Heathrow to Kuala Lumpur Intl flights
Heathrow to Narita flights
Heathrow to Mumbai flights
Heathrow to Hong Kong flights
Gatwick to Narita flights
Heathrow to Colombo flights
London City to Haneda flights
Gatwick to Haneda flights
Heathrow to Manila flights
London City to Narita flights
Stansted to Narita flights
Heathrow to Incheon Intl flights
Gatwick to New Delhi flights
Heathrow to Singapore flights
Heathrow to Lahore flights
Stansted to New Delhi flights
Heathrow to Islamabad flights
Heathrow to Denpasar flights
Heathrow to Phuket City flights
Gatwick to Manila flights
London City to New Delhi flights
Gatwick to Islamabad flights
Gatwick to Ahmedabad flights
Heathrow to Taiwan Taoyuan Intl flights
Gatwick to Kuala Lumpur Intl flights
Heathrow to Dhaka flights
Heathrow to Ahmedabad flights
Gatwick to Mumbai flights
Stansted to Mumbai flights
Stansted to Manila flights
London City to Manila flights
Gatwick to Lahore flights
Gatwick to Denpasar flights
Gatwick to Colombo flights
London City to Denpasar flights
London City to Kuala Lumpur Intl flights
Stansted to Denpasar flights
Heathrow to Chennai flights
Stansted to Phuket City flights
Gatwick to Phuket City flights
London City to Phuket City flights
Stansted to Islamabad flights
Gatwick to Singapore flights

Top 10 airlines flying from Heathrow to Southeast Asia

Discover the top 10 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 858,174 searches. Data last updated 18 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest£396Average£734FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air FranceCheapest£415Average£791FlexibilityNo cancel feeOn-time77%
Search Air France flights
Hainan AirlinesCheapest£429Average£481FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£475Average£669FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
KLMCheapest£505Average£818FlexibilityNo cancel feeOn-time75%
Search KLM flights
SWISSCheapest£521Average£772FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£531Average£1,007FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Royal JordanianCheapest£545Average£688FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
LufthansaCheapest£550Average£773FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£551Average£700FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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