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Southeast Asia

$369+ Cheap flights from London (LON) 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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
may. 4 — may. 111
dom. 5/4
dom. 5/11
1 adult, Economy
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Cheap flight deals from London to Southeast Asia

Keep the following information in mind while searching for London to Southeast Asia flight deals. Data was last updated abril 29, 2025.

Round-trip from

$549
(FlightHub)

One-way from

$369
(Mytrip)

Popular in

December

Cheapest in

November

Average price

$878
From London (LON) to Southeast Asia
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One-way flight from London (LON) to Southeast Asia
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Highest demand for flights based on searches. 4% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from London to Southeast Asia

Cheapest flights from London to Southeast Asia
Explore the most affordable flight options available from London to Southeast Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 29, 2025.

This Shenzhen Airlines deal was found by Cheapflights users on 4/28. 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.
dom. 5/2510:05 pmLHR - MNL
1 stop20h 35mShenzhen Airlines
vie. 6/62:55 amMNL - LHR
1 stop23h 55mShenzhen Airlines
Deal found 4/28$551
This FlightHub deal was found by Cheapflights users on 4/29. 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.
vie. 5/2310:00 pmLHR - BKK
1 stop38h 15mHainan Airlines
mar. 5/271:30 amBKK - LHR
1 stop24h 00mHainan Airlines
Deal found 4/29$552
This FlightHub deal was found by Cheapflights users on 4/28. 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.
mar. 5/2711:35 amLGW - BKK
1 stop18h 55mChina Eastern
mar. 6/34:50 pmBKK - LGW
1 stop19h 50mChina Eastern
Deal found 4/28$555
This Booking.com deal was found by Cheapflights users on 4/28. 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.
lun. 9/2210:10 pmLHR - MNL
1 stop18h 05mChina Southern
mié. 11/195:40 pmMNL - LHR
1 stop32h 35mChina Southern
Deal found 4/28$557
This FlightHub deal was found by Cheapflights users on 4/29. 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.
sáb. 5/39:20 pmLHR - BKK
1 stop24h 45mChina Eastern
sáb. 5/175:05 amBKK - LHR
1 stop19h 35mChina Eastern
Deal found 4/29$557
This Mytrip deal was found by Cheapflights users on 4/29. 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.
mié. 6/412:35 pmLGW - BKK
1 stop29h 35mAir China
mié. 6/187:35 pmBKK - LGW
1 stop17h 00mAir China
Deal found 4/29$566
This Gotogate deal was found by Cheapflights users on 4/28. 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.
mié. 11/59:10 pmLHR - BKK
1 stop21h 40mShenzhen Airlines
mar. 11/183:05 amBKK - LHR
1 stop23h 05mShenzhen Airlines
Deal found 4/28$567
This Gulf Air deal was found by Cheapflights users on 4/28. 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 Gulf Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/1111:25 amLGW - SIN
1 stop17h 55mGulf Air
mar. 7/158:00 pmSIN - LGW
1 stop17h 55mGulf Air
Deal found 4/28$582
This Mytrip deal was found by Cheapflights users on 4/28. 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.
mar. 5/2710:10 pmLHR - HAN
1 stop36h 35mChina Southern
mar. 6/311:45 amHAN - LHR
2 stops34h 30mChina Southern
Deal found 4/28$588
This Mytrip deal was found by Cheapflights users on 4/29. 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.
mar. 5/610:00 pmLHR - MNL
1 stop20h 30mAir China
lun. 5/122:55 amMNL - LHR
1 stop24h 20mAir China
Deal found 4/29$589
This FlightHub deal was found by Cheapflights users on 4/29. 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.
vie. 6/612:30 pmLHR - BKK
1 stop25h 05mAir India
lun. 6/308:40 amBKK - LHR
1 stop16h 20mAir India
Deal found 4/29$596
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/65:10 pmLHR - KUL
2 stops22h 10mKLM
dom. 5/2511:55 pmKUL - LHR
1 stop16h 05mKLM
Deal found 4/29$597

Cheapflights Fare Finder

Customize your flight search to find flights from London 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 abril 29, 2025.
Use the filters below to find and compare flights from London to Southeast Asia that are best for you.

Fly from

London

Fly to

Southeast Asia

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

lun. 5/26

10:00 pm-10:00 am

1 stop30h 00m

Bangkok Suvarnabhumi

dom. 6/1

1:30 am-7:30 pm

1 stop24h 00m

$549

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

jue. 5/29

9:20 pm-12:40 am

1 stop21h 20m

Bangkok Suvarnabhumi

sáb. 6/7

2:10 am-6:40 pm

1 stop22h 30m

$550

LondonManila

LHR - MNL

LHRMNL

London Heathrow

dom. 5/25

10:05 pm-1:40 am

1 stop20h 35m

Manila Ninoy Aquino Intl

jue. 6/5

2:55 am-8:00 pm

1 stop24h 05m

$553

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

mié. 6/4

12:35 pm-12:10 am

1 stop29h 35m

Bangkok Suvarnabhumi

mié. 6/18

7:35 pm-6:35 am

1 stop17h 00m

$566

LondonSingapore

LGW - SIN

LGWSIN

London Gatwick

dom. 5/11

11:25 am-12:20 pm

1 stop17h 55m

Singapore Changi

mar. 7/15

8:00 pm-6:55 am

1 stop17h 55m

$582

LondonHanoi

LHR - HAN

LHRHAN

London Heathrow

mar. 5/27

10:10 pm-4:45 pm

1 stop36h 35m

Hanoi Noibai

mar. 6/3

11:45 am-4:15 pm

2 stops34h 30m

$588

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

jue. 5/15

2:20 pm-8:05 am

2 stops35h 45m

Bangkok Suvarnabhumi

sáb. 5/31

6:00 pm-11:10 pm

2 stops35h 10m

$593

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

vie. 6/6

12:30 pm-7:35 pm

1 stop25h 05m

Bangkok Suvarnabhumi

lun. 6/30

8:40 am-7:00 pm

1 stop16h 20m

$596

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

lun. 5/12

10:00 am-1:45 pm

1 stop21h 45m

Bangkok Suvarnabhumi

mar. 2/10

3:20 pm-7:30 am

1 stop23h 10m

$616

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

mar. 5/13

7:15 pm-3:40 pm

1 stop37h 25m

Kuala Lumpur Intl

mar. 5/27

11:55 pm-9:00 am

1 stop16h 05m

$635

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 60 results
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Best time to book a flight from London to Southeast Asia

Have a flexible travel schedule? Discover the best time to fly to Southeast Asia from London 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.

Cheapflights Insights

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

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

Currently, March is the cheapest month in which you can book a flight from London to Southeast Asia (average of $958). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,574). 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 LON to YJX?

Find hourly flight availability from London 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 abril 29, 2025.

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

Weekly flight availability from London to Southeast Asia

Explore weekly flight availability from London 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 abril 29, 2025.

The most flights from LON 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 abril 29, 2025.
See what other customers who have flown with EVA Air, China Airlines and Hainan Airlines from London to Southeast Asia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,186 reviews

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
EVA Air
8.4
Very good
1,186 reviews
EVA Air
8.4
Very good
1,186 reviews

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
China Airlines
8.3
Very good
732 reviews
EVA Air
8.4
Very good
1,186 reviews

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Hainan Airlines
8.1
Very good
38 reviews
EVA Air
8.4
Very good
1,186 reviews

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop
Garuda Indonesia
8.1
Very good
72 reviews
EVA Air
8.4
Very good
1,186 reviews

Comfort

8.3

Food

8.1

Crew

8.6

Overall

8.4

Entertainment

8.0

Boarding

8.4

Reviews

1 / 20
10.0
Excellent

Dale,Apr 2025

SFO - TPE

Great experience. Check in process was excellent - both online and bag drop

Related info for your journey

Find useful and relevant information for your journey from London 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 to Southeast Asia one-way?

    To fly one-way, consider booking your trip with Hainan Airlines, which is currently one of the cheapest options available, starting at $370. China Eastern flights start at $395 while deals on Gulf Air start at $402 one-way.

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

    When deciding which route to take from London to Southeast Asia consider London Heathrow - Bangkok Suvarnabhumi, London Heathrow - Langkawi or London Gatwick - Bangkok Suvarnabhumi as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to Southeast Asia on time: Thai Airways (69%), Air Canada (68%), EVA Air (62%).

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

    On average you can expect to pay $2,002 for a flight from London to Southeast Asia. The cheapest flight overall is $500 while the most popular route, (London Heathrow - Bangkok Suvarnabhumi) is currently priced at $517.

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

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

  • How can I find direct flights from London to Southeast Asia?

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

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

    Yes. Cheapflights offers flight deals from London 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 to Southeast Asia?

    Currently, March is the cheapest month in which you can book a flight from London to Southeast Asia (average of $958). Flying from London to Southeast Asia in December is currently the most expensive (average of $1,574). 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 London 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
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Gatwick to Suvarnabhumi flights
Heathrow to Kuala Lumpur Intl flights
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Heathrow to Manila flights
Heathrow to Hongqiao Intl flights
Heathrow to Incheon Intl flights
Manchester to Suvarnabhumi flights
Gatwick to Singapore flights
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Heathrow to Hanoi flights
Gatwick to Pu Dong flights
Heathrow to New Delhi flights
Heathrow to Islamabad flights
Heathrow to Ho Chi Minh City flights
Heathrow to Colombo flights
Heathrow to Mumbai flights
Heathrow to Capital flights
Heathrow to Soekarno-Hatta Intl flights
Heathrow to Lahore flights
Heathrow to Phuket City flights
Heathrow to Taiwan Taoyuan Intl flights
Heathrow to Yerevan flights
Heathrow to Karachi flights
Heathrow to Hyderabad flights
Heathrow to Bangalore flights

Top 10 airlines flying from London to Southeast Asia

Discover the top 10 airlines that operate flights from London 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
SAUDIACheapest$407Average$778FlexibilityNo cancel feeOn-time86%
Shenzhen AirlinesCheapest$457Average$574FlexibilityNo cancel feeOn-time63%
Gulf AirCheapest$514Average$768FlexibilityNo cancel feeOn-time67%
China EasternCheapest$528Average$710FlexibilityNo cancel feeOn-time62%
China SouthernCheapest$570Average$714FlexibilityNo cancel feeOn-time69%
Hainan AirlinesCheapest$586Average$636FlexibilityNo cancel feeOn-time61%
Air IndiaCheapest$603Average$951FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$620Average$968FlexibilityNo cancel feeOn-time70%
Etihad AirwaysCheapest$652Average$871FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$669Average$880FlexibilityNo cancel feeOn-time77%

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