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Cheap flights from London to Southeast Asia from £301

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 17/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — BKK
24 Dec — 31 Dec1
1 adult

Cheap flight deals from London to Southeast Asia

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) 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 19 December 2024.

Round-trip from

£467

One-way from

£301
Hainan Airlines
  • Hainan Airlines
  • 20/1-2/2
  • 4 total stops
  • 67h 50m total
  • London to Southeast Asia
Search Deals
17/3
  • 17/3
  • 2 total stops
  • 43h 45m total
  • London to Southeast Asia
Search Deals

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 19 December 2024.

Mon 30/1220:25LHR - BKK
1 stop20h 45mAir China
Wed 22/101:30BKK - LHR
1 stop21h 25mAir China
Deal found 17/12£512
Wed 25/1211:40LGW - BKK
2 stops41h 50mAir China
Sat 11/101:30BKK - LGW
2 stops36h 25mAir China
Deal found 17/12£517
Fri 27/1221:00LHR - BKK
2 stops38h 05mHainan Airlines
Sun 19/111:10BKK - LHR
2 stops37h 45mHainan Airlines
Deal found 18/12£567
Tue 31/1210:30LGW - BKK
2 stops40h 00mChina Eastern
Fri 28/205:35BKK - LGW
2 stops39h 25mChina Eastern
Deal found 18/12£593
Tue 31/1219:20LHR - BKK
1 stop28h 50mEtihad Airways
Sun 26/102:15BKK - LHR
1 stop16h 50mEtihad Airways
Deal found 18/12£606
Tue 31/1208:45LHR - BKK
1 stop15h 35mAir India
Fri 31/122:30BKK - LHR
1 stop20h 00mAir India
Deal found 18/12£607
Sat 28/1220:05LHR - BKK
1 stop27h 40mOman Air
Thu 16/120:05BKK - LHR
1 stop29h 20mOman Air
Deal found 18/12£617
Tue 31/1208:45LHR - SIN
2 stops39h 00mAir India
Thu 6/308:45SIN - LHR
2 stops42h 45mAir India
Deal found 17/12£636
Tue 31/1206:35LGW - BKK
2 stops24h 55mMultiple Airlines
Wed 22/116:50BKK - LGW
1 stop20h 40mMultiple Airlines
Deal found 17/12£638
Tue 31/1218:30LHR - HKT
3 stops69h 55mMultiple Airlines
Mon 20/119:50HKT - LHR
1 stop29h 35mMultiple Airlines
Deal found 18/12£640
Mon 30/1206:45STN - BKK
3 stops26h 50mMultiple Airlines
Thu 16/120:05BKK - STN
2 stops33h 55mMultiple Airlines
Deal found 17/12£642
Tue 31/1217:50LHR - BKK
1 stop35h 30mChina Eastern
Tue 4/301:55BKK - LHR
1 stop19h 00mChina Eastern
Deal found 18/12£660

Find flights from London to Southeast Asia within your budget

Customise 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 858,174 searches. Data last updated 19 December 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 2/3

20:25-00:10

1 stop20h 45m

Bangkok Suvarnabhumi

Sat 15/3

01:30-15:55

1 stop21h 25m

£468

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Tue 4/3

06:25-00:40

2 stops35h 15m

Bangkok Suvarnabhumi

Tue 18/3

13:50-10:50

2 stops28h 00m

£469

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 14/1

22:00-11:25

1 stop30h 25m

Bangkok Suvarnabhumi

Tue 25/3

13:55-18:15

1 stop35h 20m

£469

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

£471

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Mon 13/1

17:50-01:55

1 stop25h 05m

Bangkok Suvarnabhumi

Fri 28/2

05:05-17:30

1 stop19h 25m

£474

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 20/2

11:40-12:30

3 stops41h 50m

Bangkok Suvarnabhumi

Wed 19/3

01:30-06:55

2 stops36h 25m

£474

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 18/1

13:30-14:05

1 stop17h 35m

Bangkok Suvarnabhumi

Fri 31/1

22:30-11:30

1 stop20h 00m

£475

LondonBangkok

STN - BKK

STNBKK

London Stansted

Sat 1/2

13:50-21:30

2 stops24h 40m

Bangkok Suvarnabhumi

Sat 8/2

22:30-22:40

2 stops31h 10m

£475

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 3/3

10:30-15:55

1 stop22h 25m

Bangkok Suvarnabhumi

Mon 17/3

05:35-06:30

3 stops31h 55m

£476

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Mon 20/1

21:30-22:30

2 stops41h 00m

Manila Ninoy Aquino Intl

Tue 4/3

12:00-18:15

1 stop38h 15m

£477

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 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 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 London to Southeast Asia

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

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

Currently, May is the cheapest month in which you can book a flight from London to Southeast Asia (average of £791). Flying from London 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 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 19 December 2024.

When flying from London 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 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 19 December 2024.

The most flights from LON to zzYJX are scheduled on a Monday (8 on average). You will have fewer flight options on Tuesday, 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 19 December 2024.
See what other customers who have flown with Hainan Airlines, Air China and China Southern from London to Southeast Asia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,331 reviews
Check prices

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

Singapore Airlines
8.1
Very Good
1,331 reviews
Singapore Airlines
8.1
Very Good
1,331 reviews
Check prices

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

Emirates
8.1
Very Good
3,410 reviews
Singapore Airlines
8.1
Very Good
1,331 reviews
Check prices

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

KLM
7.8
Good
1,349 reviews
Singapore Airlines
8.1
Very Good
1,331 reviews
Check prices

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

Thai Airways
7.8
Good
357 reviews
Singapore Airlines
8.1
Very Good
1,331 reviews
Check prices

Comfort

8.0

Crew

8.6

Overall

8.1

Food

7.7

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

Food was not good. It was like few days old.

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?

    The cheapet airlines for a one-way flight from London to Southeast Asia are Air China (£301), Shenzhen Airlines (£315), and China Eastern (£319).

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

    The most popular route from London to Southeast Asia is London Heathrow - Bangkok Suvarnabhumi. You may also consider London Gatwick - Bangkok Suvarnabhumi or London City - Bangkok Suvarnabhumi.

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

    No one likes to see their flight delayed. When booking a flight from London to Southeast Asia consider choosing Air Canada (71%), Thai Airways (67%) or EVA Air (57%) as they are the most reliable in getting you off to your destination on time.

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

    The cheapest flight price from London to Southeast Asia is £360. On average you can expect to pay £2,416. The most popular route, (London Heathrow - Bangkok Suvarnabhumi), can usually be booked for £420.

  • 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 holiday 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, May is the cheapest month in which you can book a flight from London to Southeast Asia (average of £791). Flying from London 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 London to Southeast Asia

See prices for flight routes from nearby airports that may be better suited for you.
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London City to Kuala Lumpur Intl flights
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Stansted to Kuala Lumpur Intl flights
Gatwick to Singapore flights
Stansted to Phuket City 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 858,174 searches. Data last updated 19 December 2024.
AirlineCheapestAverageFlexibilityOn-time
Qantas AirwaysCheapest£396Average£735FlexibilityNo cancel feeOn-time74%
Search Qantas Airways flights
Air FranceCheapest£415Average£792FlexibilityNo cancel feeOn-time77%
Search Air France flights
Hainan AirlinesCheapest£430Average£482FlexibilityNo cancel feeOn-time61%
Search Hainan Airlines flights
Royal Brunei AirlinesCheapest£475Average£670FlexibilityNo cancel feeOn-time84%
Search Royal Brunei Airlines flights
Royal JordanianCheapest£487Average£628FlexibilityNo cancel feeOn-time61%
Search Royal Jordanian flights
KLMCheapest£506Average£882FlexibilityNo cancel feeOn-time75%
Search KLM flights
SWISSCheapest£515Average£746FlexibilityNo cancel feeOn-time79%
Search SWISS flights
FinnairCheapest£532Average£1,009FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£551Average£778FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£552Average£741FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights

Fly with Cheapflights

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How does Cheapflights help users find flights from London to Southeast Asia?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Southeast Asia from London today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from London to Southeast Asia?

Millions of users choose and trust Cheapflights to book the best flight deals from London to Southeast Asia for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

Yes, we can. To see specific flights from London to Southeast Asia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Of course! You can now track prices for flights from London to Southeast Asia and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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