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

Gulf Air and Shenzhen Airlines are the most popular carriers operating from United Kingdom to Southeast Asia

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

As of June 2026, there are 34 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.

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

The number of flights available between United Kingdom and Southeast Asia is 239 per week as of June 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving 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 are refreshed on a daily basis.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Southeast Asia.

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

The required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

₹ 42,922 Cheap Flights from the United Kingdom to Southeast Asia in 2026

1 adult

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Find the cheapest flights from the United Kingdom to Southeast Asia

Round-trip

One-way

Last minute

Direct

Recent return flight deals from the United Kingdom to Southeast Asia

Enter your travel dates to find the best prices.

22:05 - 02:00

LHR

SIN

20h 55m

1 stop

03:00 - 20:00

SIN

LHR

24h 00m

1 stop

₹ 66,799Shenzhen Airlines

Sat, 3 Oct - Tue, 13 Oct

21:00 - 15:00

LHR

SIN

34h 00m

1 stop

00:25 - 17:30

SIN

LHR

25h 05m

1 stop

₹ 70,589China Eastern

Sun, 8 Nov - Tue, 17 Nov

17:50 - 16:35

LHR

SIN

15h 45m

1 stop

22:45 - 08:15

SIN

LHR

16h 30m

1 stop

₹ 70,684Lufthansa

Fri, 11 Sep - Mon, 28 Sep

21:00 - 15:00

LHR

SIN

34h 00m

1 stop

23:00 - 17:30

SIN

LHR

26h 30m

1 stop

₹ 70,778China Eastern

Tue, 10 Nov - Wed, 18 Nov

21:00 - 05:25

LHR

SIN

24h 25m

1 stop

23:00 - 17:30

SIN

LHR

26h 30m

1 stop

₹ 70,873China Eastern

Tue, 3 Nov - Sun, 6 Dec

09:30 - 12:50

LHR

SIN

19h 20m

1 stop

20:00 - 14:45

SIN

LHR

26h 45m

1 stop

₹ 72,105Gulf Air

Thu, 5 Nov - Thu, 12 Nov

21:50 - 12:50

LHR

SIN

31h 00m

1 stop

20:00 - 14:45

SIN

LHR

26h 45m

1 stop

₹ 72,200Gulf Air

Thu, 5 Nov - Wed, 18 Nov

10:00 - 14:40

LHR

IXZ

24h 10m

2 stops

15:15 - 15:20

IXZ

LHR

28h 35m

2 stops

₹ 81,201Multiple Airlines

Mon, 15 Jun - Thu, 18 Jun

22:10 - 14:40

LHR

IXZ

36h 00m

1 stop

15:15 - 20:20

IXZ

LHR

33h 35m

1 stop

₹ 81,675Air India

Mon, 15 Jun - Thu, 18 Jun

22:10 - 14:40

LHR

IXZ

36h 00m

1 stop

15:15 - 19:00

IXZ

LHR

32h 15m

2 stops

₹ 82,433Air India

Mon, 15 Jun - Thu, 18 Jun

Etihad Airways flights from United Kingdom to Southeast Asia

Our best Etihad Airways deals on United Kingdom to Southeast Asia flight tickets

Etihad Airways

22 Aug

LHR20:45London Heathrow

29h 55m

1 stop

SIN09:40Singapore Changi

7 Sept

SIN21:00Singapore Changi

17h 00m

1 stop

LHR07:00London Heathrow

₹ 77,695

Etihad Airways

5 Nov

LHR19:20London Heathrow

30h 15m

1 stop

SIN09:35Singapore Changi

20 Nov

SIN19:25Singapore Changi

24h 40m

1 stop

LHR12:05London Heathrow

₹ 77,979

Etihad Airways

4 Jun

LHR21:45London Heathrow

28h 55m

1 stop

SIN09:40Singapore Changi

17 Jun

SIN21:00Singapore Changi

25h 05m

1 stop

LHR15:05London Heathrow

₹ 80,822

Finnair flights from United Kingdom to Southeast Asia

Our best Finnair deals on United Kingdom to Southeast Asia flight tickets

Finnair

2 Jun

LHR07:30London Heathrow

28h 00m

1 stop

SIN18:30Singapore Changi

8 Jun

SIN21:35Singapore Changi

18h 35m

1 stop

LHR09:10London Heathrow

₹ 69,452

Finnair

2 Jun

LHR07:30London Heathrow

28h 00m

1 stop

SIN18:30Singapore Changi

28 Jun

SIN21:35Singapore Changi

18h 35m

1 stop

LHR09:10London Heathrow

₹ 69,547

Finnair

4 Jun

LHR07:30London Heathrow

28h 00m

1 stop

SIN18:30Singapore Changi

30 Jun

SIN21:35Singapore Changi

26h 30m

1 stop

LHR17:05London Heathrow

₹ 76,748

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

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sat 3/10

22:05-02:00

1 stop20h 55m

Singapore Changi

Tue 13/10

03:00-20:00

1 stop24h 00m

₹ 66,799

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Sun 8/11

21:00-15:00

1 stop34h 00m

Singapore Changi

Tue 17/11

00:25-17:30

1 stop25h 05m

₹ 70,589

Fastest return journey

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Fri 11/9

17:50-16:35

1 stop15h 45m

Singapore Changi

Mon 28/9

22:45-08:15

1 stop16h 30m

₹ 70,684

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 10/11

21:00-15:00

1 stop34h 00m

Singapore Changi

Wed 18/11

23:00-17:30

1 stop26h 30m

₹ 70,778

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Tue 3/11

21:00-05:25

1 stop24h 25m

Singapore Changi

Sun 6/12

23:00-17:30

1 stop26h 30m

₹ 70,873

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 5/11

09:30-12:50

1 stop19h 20m

Singapore Changi

Thu 12/11

20:00-14:45

1 stop26h 45m

₹ 72,105

LondonSingapore

LHR - SIN

LHRSIN

London Heathrow

Thu 5/11

21:50-12:50

1 stop31h 00m

Singapore Changi

Wed 18/11

20:00-14:45

1 stop26h 45m

₹ 72,200

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Mon 15/6

10:00-14:40

2 stops24h 10m

Port Blair

Thu 18/6

15:15-15:20

2 stops28h 35m

₹ 81,201

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Mon 15/6

22:10-14:40

1 stop36h 00m

Port Blair

Thu 18/6

15:15-20:20

1 stop33h 35m

₹ 81,675

LondonPort Blair

LHR - IXZ

LHRIXZ

London Heathrow

Mon 15/6

22:10-14:40

1 stop36h 00m

Port Blair

Thu 18/6

15:15-19:00

2 stops32h 15m

₹ 82,433

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?

In general, November is the cheapest month to fly from United Kingdom to Southeast Asia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around ₹ 81,296. If you aren’t able to travel during the month of November, then book flights to Southeast Asia from United Kingdom during September instead. Flights to Southeast Asia in September, while not as cheap as those in November, still average around ₹ 81,390.

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

The cheapest day to depart from United Kingdom to Southeast Asia is on a Sunday. Travellers who choose to depart for Southeast Asia on a Sunday will often find tickets for as low as ₹ 101,435. The most expensive day to fly to Southeast Asia is Friday, with ticket prices averaging around ₹ 167,840.

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

According to our data, the cheapest time of day to fly to Southeast Asia is in the evening. momondo users have found flights departing from United Kingdom to Southeast Asia in the evening for as low as ₹ 116,766. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are ₹ 144,195 on average. Flights to Southeast Asia from United Kingdom in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Fly from Manchester to Bangkok Suvarnabhumi for the best United Kingdom - Southeast Asia flight prices

How far in advance should I book a flight from the United Kingdom 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 ₹ 88,741 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 ₹ 84,233 on momondo.

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

There are 2 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	13h 05m
Direct flights	Every day
Airports in Southeast Asia	295 airports

The fastest flight from United Kingdom to Southeast Asia takes 13h 05m

Direct flights go from United Kingdom to Southeast Asia every day.

There are 295 airports in Southeast Asia. From United Kingdom there are direct flights to Singapore Changi (SIN).

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 are refreshed on a daily basis.
How old do you have to be to fly from United Kingdom to Southeast Asia?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Southeast Asia.
What documentation or ID do you need to fly to Southeast Asia?
The required travel and health documents for your Southeast Asia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Southeast Asia. We recommend that you seek guidance from your airline or a reliable 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
Etihad Airways	PriceFrom ₹ 64,929	Free Cancellation	Rating 7.3 1,445 reviews		Search Etihad Airways flights

Why use momondo?

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

It is quick and easy to find United Kingdom to Southeast Asia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Southeast Asia that suits you.

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

Yes. All flights to Southeast Asia from United Kingdom on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for United Kingdom to Southeast Asia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Southeast Asia from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.