HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Southeast Asia

$383+ Cheap flights from Heathrow (LHR) to Southeast Asia

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 3/31. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — BKK
Mar 15 — Mar 221
Sat 3/15
Sat 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Heathrow to Southeast Asia with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Heathrow to Southeast Asia

Keep the following information in mind while searching for Heathrow to Southeast Asia flight deals. Data was last updated March 10, 2025.

Round-trip from

$565
(Mytrip)

One-way from

$383
(Kiwi.com)

Popular in

December

Cheapest in

November

Average price

$739
From London Heathrow to Southeast Asia
Search Deals
One-way flight from London Heathrow to Southeast Asia
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
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 March 10, 2025.

This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/169:20 pmLHR - MNL
1 stop21h 00mChina Eastern
Mon 6/163:55 amMNL - LHR
1 stop21h 45mChina Eastern
Deal found 3/10$557
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/810:00 pmLHR - MNL
1 stop20h 30mAir China
Wed 6/42:55 amMNL - LHR
1 stop24h 20mAir China
Deal found 3/8$565
This Gotogate deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/165:15 pmLHR - MNL
2 stops33h 35mChina Southern
Sun 3/305:45 pmMNL - LHR
1 stop32h 15mChina Southern
Deal found 3/9$578
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/710:05 pmLHR - HAN
1 stop21h 05mShenzhen Airlines
Thu 5/222:10 amHAN - LHR
1 stop23h 50mShenzhen Airlines
Deal found 3/9$588
This FlightHub deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/264:15 pmLHR - BKK
1 stop15h 30mSAUDIA
Sat 5/173:25 pmBKK - LHR
1 stop22h 05mSAUDIA
Deal found 3/10$593
This Mytrip deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/118:25 pmLHR - BKK
1 stop20h 45mAir China
Mon 3/171:30 amBKK - LHR
1 stop23h 20mAir China
Deal found 3/10$594
This Booking.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/210:00 pmLHR - BKK
2 stops30h 00mHainan Airlines
Sun 5/111:30 amBKK - LHR
2 stops24h 00mHainan Airlines
Deal found 3/10$595
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1510:10 pmLHR - BKK
1 stop30h 10mChina Southern
Thu 6/126:05 pmBKK - LHR
1 stop30h 55mChina Southern
Deal found 3/9$597
This Shenzhen Airlines deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Shenzhen Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2810:05 pmLHR - SGN
1 stop21h 15mShenzhen Airlines
Sat 5/242:20 amSGN - LHR
1 stop23h 40mShenzhen Airlines
Deal found 3/10$598
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/139:20 pmLHR - BKK
1 stop17h 35mChina Eastern
Mon 5/122:10 amBKK - LHR
1 stop22h 30mChina Eastern
Deal found 3/9$598
This Gotogate deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2310:00 pmLHR - SGN
1 stop17h 10mChina Southern
Sat 3/292:40 amSGN - LHR
1 stop19h 35mChina Southern
Deal found 3/9$603
This SAUDIA deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SAUDIA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/255:50 pmLHR - CGK
2 stops22h 55mSAUDIA
Mon 5/125:30 pmCGK - LHR
2 stops26h 45mSAUDIA
Deal found 3/10$603

Find flights from Heathrow to Southeast Asia within your budget

Customize 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 2,558,603 searches. Data last updated March 10, 2025.

Fly from

Heathrow

Fly to

Southeast Asia

Route

Depart

Return

Price

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Fri 5/16

9:20 pm-1:20 am

1 stop21h 00m

Manila Ninoy Aquino Intl

Mon 6/16

3:55 am-6:40 pm

1 stop21h 45m

$557

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Thu 5/8

10:00 pm-1:30 am

1 stop20h 30m

Manila Ninoy Aquino Intl

Wed 6/4

2:55 am-8:15 pm

1 stop24h 20m

$565

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 3/23

5:15 pm-10:50 am

2 stops33h 35m

Manila Ninoy Aquino Intl

Sun 3/30

5:45 pm-7:00 pm

1 stop32h 15m

$578

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

Wed 5/7

10:05 pm-5:40 pm

1 stop37h 35m

Hanoi Noibai

Fri 5/23

6:40 pm-7:50 pm

1 stop31h 10m

$588

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 4/26

4:15 pm-1:45 pm

1 stop15h 30m

Bangkok Suvarnabhumi

Sat 5/17

3:25 pm-7:30 am

1 stop22h 05m

$593

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Fri 5/2

10:00 pm-10:00 am

2 stops30h 00m

Bangkok Suvarnabhumi

Sun 5/11

1:30 am-7:30 pm

2 stops24h 00m

$595

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 4/22

7:05 am-7:15 am

1 stop18h 10m

Bangkok Suvarnabhumi

Mon 5/19

4:55 pm-7:10 pm

2 stops32h 15m

$614

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 3/24

6:55 pm-3:55 pm

Nonstop13h 00m

Singapore Changi

Mon 3/31

11:20 pm-6:30 am

Nonstop14h 10m

$632

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 5/3

10:05 pm-12:20 pm

1 stop31h 15m

Singapore Changi

Sat 5/10

8:00 pm-6:55 am

1 stop17h 55m

$666

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Mon 4/28

9:45 pm-9:40 am

1 stop28h 55m

Singapore Changi

Mon 6/16

9:10 pm-6:45 pm

1 stop28h 35m

$670

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Showing 1-10 of 60 results
1
2
3
...
6

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 round-trip 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 $968). Flying from London Heathrow Airport to Southeast Asia in June is currently the most expensive (average of $1,577). 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 March 10, 2025.

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 March 10, 2025.

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 0.4 - 15.7 inches per month. July is typically the wettest month, when rainfall can reach 15.7 in. February is typically the driest time to visit Southeast Asia when rainfall is around 0.4 in.

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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 78.8 F).

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 March 10, 2025.
Read reviews from past customers who have flown EVA Air, China Airlines and Garuda Indonesia 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
1,179 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

EVA Air
8.4
Very good
1,179 reviews
EVA Air
8.4
Very good
1,179 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

China Airlines
8.2
Very good
724 reviews
EVA Air
8.4
Very good
1,179 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Garuda Indonesia
8.1
Very good
73 reviews
EVA Air
8.4
Very good
1,179 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

Singapore Airlines
8.1
Very good
1,282 reviews
EVA Air
8.4
Very good
1,179 reviews

Food

8.1

Comfort

8.3

Overall

8.4

Boarding

8.4

Crew

8.6

Entertainment

8.0

Reviews

1 / 20

10.0
Excellent

Piotr,Feb 2025

TPE - ORD

It is always a pleasure to travel with EVA Air.

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 China Eastern, with whom users have recently found tickets for as low as $386. However, be on the lookout for offers from Singapore Airlines and Etihad Airways, 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?

    The most popular route from London Heathrow Airport to Southeast Asia is London Heathrow - Bangkok Suvarnabhumi. You may also consider London Heathrow - Langkawi or London Heathrow - Kuala Lumpur Intl.

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

    Before booking your flight to Southeast Asia from London Heathrow Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (66%), Thai Airways (61%), EVA Air( 55%).

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

    On average you can expect to pay $1,389 for a flight from London Heathrow Airport to Southeast Asia. The cheapest flight overall is $461 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at $560.

  • 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 vacation 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 $968). Flying from London Heathrow Airport to Southeast Asia in June is currently the most expensive (average of $1,577). 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

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.
Heathrow to Suvarnabhumi flights
Heathrow to Haneda flights
Heathrow to Kuala Lumpur Intl flights
Heathrow to Manila flights
Heathrow to Narita flights
Gatwick to Suvarnabhumi flights
Heathrow to Hongqiao Intl flights
Heathrow to Incheon Intl flights
Heathrow to Hong Kong flights
Heathrow to Mumbai flights
Heathrow to New Delhi flights
Gatwick to Singapore flights
Heathrow to Lahore flights
Heathrow to Singapore flights
Heathrow to Denpasar flights
Heathrow to Colombo flights
Heathrow to Islamabad flights
Heathrow to Pu Dong flights
Heathrow to Soekarno-Hatta Intl flights
London City to New Delhi flights
Heathrow to Cochin flights
Heathrow to Ahmedabad flights
Heathrow to Phnom Penh flights
Heathrow to Phuket City flights
Heathrow to Hyderabad flights
Heathrow to Ho Chi Minh City flights
Gatwick to Pu Dong flights
Heathrow to Capital flights
Heathrow to Chennai flights
Heathrow to Yerevan flights
Heathrow to Bangalore flights
Heathrow to Hanoi flights
Heathrow to Karachi 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 2,558,603 searches. Data last updated March 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest$457Average$584FlexibilityNo cancel feeOn-time63%
Gulf AirCheapest$514Average$769FlexibilityNo cancel feeOn-time67%
China EasternCheapest$515Average$739FlexibilityNo cancel feeOn-time62%
China SouthernCheapest$531Average$694FlexibilityNo cancel feeOn-time69%
Air IndiaCheapest$603Average$900FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$639Average$862FlexibilityNo cancel feeOn-time77%
Etihad AirwaysCheapest$649Average$908FlexibilityNo cancel feeOn-time75%
SWISSCheapest$679Average$861FlexibilityNo cancel feeOn-time79%
Oman AirCheapest$682Average$817FlexibilityNo cancel feeOn-time76%
Kuwait AirwaysCheapest$686Average$827FlexibilityNo cancel feeOn-time64%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.