Cheap flights from the United Kingdom to Southeast Asia from £288

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Southeast Asia departing on 13/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from the United Kingdom to Southeast Asia

Recent return flight deals from the United Kingdom to Southeast Asia

Enter your travel dates to find the best prices.
Condor Logo
15:35 - 12:35
LGW
-
BKK
15h 00m
1 stop
Condor Logo
22:35 - 09:00
BKK
-
LGW
16h 25m
1 stop
£430Condor
Wed, 24 Jun - Mon, 6 Jul
China Eastern Logo
17:55 - 18:05
LGW
-
BKK
18h 10m
1 stop
China Eastern Logo
13:35 - 06:30
BKK
-
LGW
23h 55m
1 stop
£430China Eastern
Sun, 6 Sep - Sun, 6 Dec
Air China Logo
22:40 - 00:10
LHR
-
BKK
19h 30m
1 stop
Air China Logo
01:30 - 17:40
BKK
-
LHR
22h 10m
1 stop
£435Air China
Tue, 28 Apr - Mon, 25 May
Air China Logo
20:25 - 00:10
LHR
-
BKK
21h 45m
1 stop
Air China Logo
01:30 - 17:40
BKK
-
LHR
22h 10m
1 stop
£436Air China
Wed, 29 Apr - Tue, 12 May
Qatar Airways Logo
09:15 - 06:50
LGW
-
BKK
15h 35m
1 stop
Qatar Airways Logo
19:45 - 07:45
BKK
-
LGW
18h 00m
1 stop
£436Qatar Airways
Sat, 6 Jun - Fri, 12 Jun
Qatar Airways Logo
09:30 - 06:20
LHR
-
BKK
14h 50m
1 stop
Qatar Airways Logo
20:00 - 06:25
BKK
-
LHR
16h 25m
1 stop
£444Qatar Airways
Sun, 30 Aug - Tue, 15 Sep
Etihad Airways Logo
09:30 - 08:25
LHR
-
KUL
15h 55m
1 stop
Etihad Airways Logo
21:55 - 15:05
KUL
-
LHR
24h 10m
1 stop
£456Etihad Airways
Fri, 8 May - Wed, 13 May
Etihad Airways Logo
09:30 - 22:00
LHR
-
MNL
29h 30m
1 stop
Etihad Airways Logo
05:30 - 07:00
MNL
-
LHR
32h 30m
1 stop
£467Etihad Airways
Sat, 13 Jun - Sat, 27 Jun
Gulf Air Logo
10:00 - 12:45
LHR
-
SIN
19h 45m
1 stop
Gulf Air Logo
20:00 - 15:20
SIN
-
LHR
26h 20m
1 stop
£488Gulf Air
Tue, 12 May - Tue, 19 May
Gulf Air Logo
10:00 - 12:45
LHR
-
SIN
19h 45m
1 stop
Gulf Air Logo
20:00 - 06:55
SIN
-
LHR
17h 55m
1 stop
£495Gulf Air
Wed, 13 May - Mon, 18 May

China Eastern flights from United Kingdom to Southeast Asia

Our best China Eastern deals on United Kingdom to Southeast Asia flight tickets
China Eastern
16 Apr
LGW11:35London Gatwick
24h 30m
1 stop
BKK18:05Bangkok Suvarnabhumi
6 May
BKK19:10Bangkok Suvarnabhumi
25h 50m
1 stop
LGW15:00London Gatwick
£430
China Eastern
27 Apr
LGW11:35London Gatwick
28h 40m
2 stops
BKK22:15Bangkok Suvarnabhumi
6 May
BKK19:10Bangkok Suvarnabhumi
25h 50m
1 stop
LGW15:00London Gatwick
£433
China Eastern
27 Apr
LGW11:35London Gatwick
28h 40m
2 stops
BKK22:15Bangkok Suvarnabhumi
6 May
BKK16:50Bangkok Suvarnabhumi
28h 10m
1 stop
LGW15:00London Gatwick
£434

Air China flights from United Kingdom to Southeast Asia

Our best Air China deals on United Kingdom to Southeast Asia flight tickets
Air China
28 Apr
LHR22:40London Heathrow
19h 30m
1 stop
BKK00:10Bangkok Suvarnabhumi
25 May
BKK01:30Bangkok Suvarnabhumi
22h 10m
1 stop
LHR17:40London Heathrow
£435
Air China
20 Apr
LHR20:25London Heathrow
21h 45m
1 stop
BKK00:10Bangkok Suvarnabhumi
19 May
BKK01:30Bangkok Suvarnabhumi
24h 55m
1 stop
LHR20:25London Heathrow
£436
Air China
29 Apr
LHR20:25London Heathrow
21h 45m
1 stop
BKK00:10Bangkok Suvarnabhumi
11 May
BKK19:35Bangkok Suvarnabhumi
28h 05m
1 stop
LHR17:40London Heathrow
£436

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom 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, momondo users made 279,928 searches. Data last updated 13 April 2026.
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

Wed 24/6

15:35-12:35

1 stop15h 00m

Bangkok Suvarnabhumi

Mon 6/7

22:35-09:00

1 stop16h 25m

£430

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sun 6/9

17:55-18:05

1 stop18h 10m

Bangkok Suvarnabhumi

Sun 6/12

13:35-06:30

1 stop23h 55m

£430

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Tue 28/4

22:40-00:10

1 stop19h 30m

Bangkok Suvarnabhumi

Mon 25/5

01:30-17:40

1 stop22h 10m

£435

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Wed 29/4

20:25-00:10

1 stop21h 45m

Bangkok Suvarnabhumi

Tue 12/5

01:30-17:40

1 stop22h 10m

£436

LondonBangkok

LGW - BKK

LGWBKK

London Gatwick

Sat 6/6

09:15-06:50

1 stop15h 35m

Bangkok Suvarnabhumi

Fri 12/6

19:45-07:45

1 stop18h 00m

£436
Fastest return journey

LondonBangkok

LHR - BKK

LHRBKK

London Heathrow

Sun 30/8

09:30-06:20

1 stop14h 50m

Bangkok Suvarnabhumi

Tue 15/9

20:00-06:25

1 stop16h 25m

£444

LondonKuala Lumpur

LHR - KUL

LHRKUL

London Heathrow

Fri 8/5

09:30-08:25

1 stop15h 55m

Kuala Lumpur Intl

Wed 13/5

21:55-15:05

1 stop24h 10m

£456

LondonManila

LHR - MNL

LHRMNL

London Heathrow

Sat 13/6

09:30-22:00

1 stop29h 30m

Manila Ninoy Aquino Intl

Sat 27/6

05:30-07:00

1 stop32h 30m

£467

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 12/5

10:00-12:45

1 stop19h 45m

Singapore Changi

Tue 19/5

20:00-15:20

1 stop26h 20m

£488

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Wed 13/5

10:00-12:45

1 stop19h 45m

Singapore Changi

Mon 18/5

20:00-06:55

1 stop17h 55m

£495

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Southeast Asia from

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

What is the cheapest month to fly to Southeast Asia?

The month of May is, on average, the cheapest month to fly to Southeast Asia from United Kingdom, with most prices found around £517. If you are unable to visit Southeast Asia during the month of May, then departing from United Kingdom during the month September is also very affordable. Most momondo users find prices during this month for around £537.

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

Our data shows that Tuesday is the least expensive day to fly to Southeast Asia. Tickets to fly out on this day can be as low as £734. 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 £791.

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 £742. 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 afternoon because they tend to be around £795. 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 Gatwick to Singapore Changi 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 £659 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 25m

Direct flights

Tue, Wed, Thu, Fri and Sun

Airports in Southeast Asia

295 airports
The fastest flight from United Kingdom to Southeast Asia takes 11h 25m
Direct flights go from United Kingdom to Southeast Asia on Tuesday, Wednesday, Thursday, Friday 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).

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?

  • 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?

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
Turkmenistan AirlinesPriceFrom £272Free CancellationRating
0.0
0 reviews
Search Turkmenistan Airlines flights
Hahn AirPriceFrom £273Free CancellationRating
0.0
Search Hahn Air flights
Scandinavian AirlinesPriceFrom £283Free CancellationRating
7.3
1,749 reviews
Search Scandinavian Airlines flights
ITA AirwaysPriceFrom £365Free CancellationRating
6.7
1,184 reviews
Search ITA Airways flights
Air ArabiaPriceFrom £392Free CancellationRating
7.7
56 reviews
Search Air Arabia flights
Royal JordanianPriceFrom £407Free CancellationRating
6.7
457 reviews
Search Royal Jordanian flights
CondorPriceFrom £423Free CancellationRating
6.5
406 reviews
Search Condor flights
Royal Brunei AirlinesPriceFrom £426Free CancellationRating
0.0
0 reviews
Search Royal Brunei Airlines flights
A.P.G.PriceFrom £466Free CancellationRating
0.0
Search A.P.G. flights
TUI AirwaysPriceFrom £481Free CancellationRating
0.0
0 reviews
Search TUI Airways 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.

An easier way to manage your Southeast Asia trip

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1 adult
Wed 13/5
Wed 20/5

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