How long is the flight from United Kingdom to Southeast Asia?

The average flight duration from United Kingdom to Southeast Asia depends on which airport you fly into and out of. Flying from London to Los Angeles is 12h 35m on average, while flying from Birmingham to Los Angeles is 13h 55m on average. Los Angeles is the most popular airport in Southeast Asia.

How many flights depart from United Kingdom to Southeast Asia on average per day?

As of June 2026, there are 57 flights per day flying from United Kingdom to Southeast Asia. The most common time of day flights depart is 22:00, with 63% of flights taking off in the evening.

What is the cheapest airline that flies from United Kingdom to Southeast Asia?

China Eastern, Shenzhen Airlines, and Norse Atlantic UK are the most popular carriers operating from United Kingdom to Southeast Asia

Which airlines fly to Southeast Asia?

Etihad Airways, Qatar Airways and Emirates are the top three most popular airlines that fly to Southeast Asia from United Kingdom according to our data. Etihad Airways is the first choice among our users, with 32% of people opting to fly with this airline when travelling to Southeast Asia. Keep in mind that there are 48 different airlines that fly to Southeast Asia on a routine basis, so you have a few additional options to choose from.

How many flights depart from United Kingdom to Southeast Asia on average per week?

400 flights are operational weekly from United Kingdom to Southeast Asia as of June 2026. The most popular departure day for this route is Sat, with 15% of flights per week taking off on this day.

When did momondo last update prices for flights from United Kingdom to Southeast Asia?

Prices for flights from United Kingdom to Southeast Asia were last updated today.

How many operators does momondo search for flights from United Kingdom to Southeast Asia?

As of June 2026, there are 47 operators available to choose from for flights from United Kingdom to Southeast Asia.

How old do you have to be to fly from United Kingdom to Southeast Asia?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Southeast Asia.

What documentation or ID do you need to fly to Southeast Asia?

The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£284 Cheap Flights from the United Kingdom to Southeast Asia in 2026

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Find the cheapest flights from the United Kingdom to Southeast Asia

Round-trip

One-way

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Recent return flight deals from the United Kingdom to Southeast Asia

Enter your travel dates to find the best prices.

10:20 - 12:35

LGW

BKK

20h 15m

1 stop

22:35 - 14:40

BKK

LGW

22h 05m

1 stop

£460Condor

Mon, 15 Jun - Mon, 6 Jul

21:35 - 16:40

LHR

BKK

36h 05m

1 stop

01:30 - 17:50

BKK

LHR

23h 20m

1 stop

£460Air China

Sat, 31 Oct - Tue, 17 Nov

10:20 - 12:35

LGW

BKK

20h 15m

1 stop

22:35 - 14:45

BKK

LGW

22h 10m

1 stop

£461Condor

Wed, 17 Jun - Wed, 1 Jul

10:30 - 00:55

LGW

BKK

31h 25m

1 stop

13:35 - 14:00

BKK

LGW

31h 25m

1 stop

£466China Eastern

Thu, 29 Oct - Thu, 12 Nov

17:00 - 00:55

LGW

BKK

24h 55m

1 stop

01:55 - 14:00

BKK

LGW

19h 05m

1 stop

£467China Eastern

Mon, 2 Nov - Sat, 14 Nov

20:45 - 23:50

MAN

BKK

21h 05m

1 stop

15:55 - 06:55

BKK

MAN

21h 00m

1 stop

£569Etihad Airways

Wed, 10 Jun - Mon, 29 Jun

20:45 - 23:50

MAN

BKK

21h 05m

1 stop

15:55 - 06:55

BKK

MAN

21h 00m

1 stop

£570Etihad Airways

Sun, 14 Jun - Sun, 21 Jun

19:15 - 02:25

LHR

MNL

24h 10m

2 stops

17:45 - 19:20

MNL

LHR

32h 35m

1 stop

£602China Southern

Sun, 20 Sep - Fri, 9 Oct

10:05 - 11:25

LGW

DMK

19h 20m

1 stop

23:50 - 12:35

DMK

LGW

18h 45m

1 stop

£637Emirates

Mon, 7 Sep - Mon, 21 Sep

20:25 - 20:15

LGW

DMK

16h 50m

1 stop

23:10 - 12:35

DMK

LGW

19h 25m

1 stop

£637Emirates

Mon, 2 Nov - Wed, 31 Mar

China Eastern flights from United Kingdom to Southeast Asia

Our best China Eastern deals on United Kingdom to Southeast Asia flight tickets

China Eastern

29 Oct

LGW10:30London Gatwick

31h 25m

1 stop

BKK00:55Bangkok Suvarnabhumi

12 Nov

BKK13:35Bangkok Suvarnabhumi

31h 25m

1 stop

LGW14:00London Gatwick

£466

China Eastern

9 Nov

LGW17:00London Gatwick

36h 20m

1 stop

BKK12:20Bangkok Suvarnabhumi

19 Nov

BKK01:55Bangkok Suvarnabhumi

19h 05m

1 stop

LGW14:00London Gatwick

£467

China Eastern

2 Nov

LGW17:00London Gatwick

36h 20m

1 stop

BKK12:20Bangkok Suvarnabhumi

23 Nov

BKK13:35Bangkok Suvarnabhumi

23h 55m

1 stop

LGW06:30London Gatwick

£467

Hainan Airlines flights from United Kingdom to Southeast Asia

Our best Hainan Airlines deals on United Kingdom to Southeast Asia flight tickets

Hainan Airlines

15 Jun

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

14 Jul

BKK19:20Bangkok Suvarnabhumi

30h 10m

1 stop

LHR19:30London Heathrow

£472

Hainan Airlines

15 Jun

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

14 Jul

BKK19:20Bangkok Suvarnabhumi

30h 10m

1 stop

LHR19:30London Heathrow

£473

Hainan Airlines

15 Jun

LHR22:00London Heathrow

30h 00m

2 stops

BKK10:00Bangkok Suvarnabhumi

9 Jul

BKK19:20Bangkok Suvarnabhumi

30h 10m

2 stops

LHR19:30London Heathrow

£484

momondo Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Southeast Asia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 15/6

10:20-12:35

1 stop20h 15m

Bangkok Suvarnabhumi

Mon 6/7

22:35-14:40

1 stop22h 05m

£460

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sat 31/10

21:35-16:40

1 stop36h 05m

Bangkok Suvarnabhumi

Tue 17/11

01:30-17:50

1 stop23h 20m

£460

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Wed 17/6

10:20-12:35

1 stop20h 15m

Bangkok Suvarnabhumi

Wed 1/7

22:35-14:45

1 stop22h 10m

£461

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Thu 29/10

10:30-00:55

1 stop31h 25m

Bangkok Suvarnabhumi

Thu 12/11

13:35-14:00

1 stop31h 25m

£466

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Mon 2/11

17:00-00:55

1 stop24h 55m

Bangkok Suvarnabhumi

Sat 14/11

01:55-14:00

1 stop19h 05m

£467

ManchesterBangkok

MAN - BKK

MANBKK

Manchester

Wed 10/6

20:45-23:50

1 stop21h 05m

Bangkok Suvarnabhumi

Mon 29/6

15:55-06:55

1 stop21h 00m

£569

ManchesterBangkok

MAN - BKK

MANBKK

Manchester

Sun 14/6

20:45-23:50

1 stop21h 05m

Bangkok Suvarnabhumi

Sun 21/6

15:55-06:55

1 stop21h 00m

£570

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sun 20/9

19:15-02:25

2 stops24h 10m

Manila Ninoy Aquino Intl

Fri 9/10

17:45-19:20

1 stop32h 35m

£602

LondonBangkok

LGW - DMK

LGWDMK

London Gatwick

Mon 7/9

10:05-11:25

1 stop19h 20m

Bangkok Don Mueang Intl

Mon 21/9

23:50-12:35

1 stop18h 45m

£637

Fastest return journey

LondonBangkok

LGW - DMK

LGWDMK

London Gatwick

Mon 2/11

20:25-20:15

1 stop16h 50m

Bangkok Don Mueang Intl

Wed 31/3

23:10-12:35

1 stop19h 25m

£637

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United Kingdom to Southeast Asia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Southeast Asia?

The month of November is, on average, the cheapest month to fly to Southeast Asia from United Kingdom, with most prices found around £637. If you are unable to visit Southeast Asia during the month of November, then departing from United Kingdom during the month September is also very affordable. Most momondo users find prices during this month for around £638.

What is the cheapest day to depart on your flight to Southeast Asia?

Our data shows that Monday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £758. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Southeast Asia on Saturday is £813.

What is the cheapest time of day to depart on your flight to Southeast Asia?

In the evening is the cheapest time of day to fly from United Kingdom to Southeast Asia when you can find flight prices for as low as £758. Flying to Southeast Asia in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around £855. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest United Kingdom to Southeast Asia flight route?

Fly from London Heathrow to Phuket City for the best United Kingdom - Southeast Asia flight prices

How far in advance should I book a flight to Southeast Asia?

You are more likely to see cheaper flights to Southeast Asia from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Southeast Asia for around £696 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Southeast Asia from United Kingdom for as low as £660 on momondo.

What cabin class options are available on United Kingdom to Southeast Asia flights?

There are 4 cabin classes available to choose from on United Kingdom to Southeast Asia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to Southeast Asia flights?

No. A direct flight is the cheapest option for a flight between United Kingdom to Southeast Asia.

Cheap United Kingdom to Southeast Asia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Southeast Asia

Fastest flight time	11h 20m
Direct flights	Mon, Tue, Wed, Thu and Sun
Airports in Southeast Asia	295 airports

The fastest flight from United Kingdom to Southeast Asia takes 11h 20m

Direct flights go from United Kingdom to Southeast Asia on Monday, Tuesday, Wednesday, Thursday and Sunday. There are no airlines offering direct flights..

There are 295 airports in Southeast Asia. From United Kingdom there are direct flights to Bangkok Suvarnabhumi (BKK).

Search flight deals

Frequently asked questions about flying from the United Kingdom to Southeast Asia

When did momondo last update prices for flights from United Kingdom to Southeast Asia?
Prices for flights from United Kingdom to Southeast Asia were last updated today.
How many operators does momondo search for flights from United Kingdom to Southeast Asia?
As of June 2026, there are 47 operators available to choose from for flights from United Kingdom to Southeast Asia.
How old do you have to be to fly from United Kingdom to Southeast Asia?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from United Kingdom to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The travel and health documents you'll need for your trip to Southeast Asia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Southeast Asia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from United Kingdom to Southeast Asia?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from United Kingdom to Southeast Asia is Boeing 787-9 Dreamliner (15.08% of total bookings). The next most popular plane models are Airbus A350-1000 (14.90%), Boeing 777 (11.34%), and Airbus A321neo (8.99%).

Best airlines flying from United Kingdom to Southeast Asia

Compare and see reviews for airlines that fly from United Kingdom to Southeast Asia with momondo

Airline	Rating	Free Cancellation	Price
Juneyao Airlines	PriceFrom £254	Free Cancellation	Rating 0.0 0 reviews	Search Juneyao Airlines flights
Turkmenistan Airlines	PriceFrom £272	Free Cancellation	Rating 0.0 0 reviews	Search Turkmenistan Airlines flights
Hahn Air	PriceFrom £273	Free Cancellation	Rating 0.0	Search Hahn Air flights
Scandinavian Airlines	PriceFrom £282	Free Cancellation	Rating 7.4 1,804 reviews	Search Scandinavian Airlines flights
ITA Airways	PriceFrom £365	Free Cancellation	Rating 6.7 1,238 reviews	Search ITA Airways flights
Air Arabia	PriceFrom £392	Free Cancellation	Rating 7.7 56 reviews	Search Air Arabia flights
Royal Jordanian	PriceFrom £407	Free Cancellation	Rating 6.8 466 reviews	Search Royal Jordanian flights
Condor	PriceFrom £423	Free Cancellation	Rating 6.5 426 reviews	Search Condor flights
Royal Brunei Airlines	PriceFrom £456	Free Cancellation	Rating 0.0 0 reviews	Search Royal Brunei Airlines flights
A.P.G.	PriceFrom £466	Free Cancellation	Rating 0.0	Search A.P.G. flights

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Southeast Asia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Southeast Asia. momondo saves you time and could save you money on your trip.

Can I find flights from United Kingdom to Southeast Asia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for United Kingdom to Southeast Asia flights to just show those with flexible booking policies.

How can momondo help me find flights from United Kingdom to Southeast Asia?

momondo provides multiple filters to help you find the best flight to Southeast Asia from United Kingdom. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from United Kingdom to Southeast Asia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from United Kingdom to Southeast Asia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Southeast Asia and let you know when they change.