What is the cheapest airline that flies from London to Cambodia?

Vietnam Airlines and SWISS are the most popular carriers operating from London to Cambodia

Which airlines fly to Cambodia?

Etihad Airways, China Southern and Singapore Airlines are the top three most popular airlines that fly to Cambodia from London according to our data. Etihad Airways is the first choice among our users, with 33% of people opting to fly with this airline when travelling to Cambodia. Keep in mind that there are 14 different airlines that fly to Cambodia on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from London to Cambodia?

Prices for flights from London to Cambodia were last updated today.

How many operators does momondo search for flights from London to Cambodia?

The number of operators available for flights from London to Cambodia is 4 as of August 2026.

How old do you have to be to fly from London to Cambodia?

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 London to Cambodia.

What documentation or ID do you need to fly to Cambodia?

The travel and health documents required for your trip to Cambodia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cambodia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£305 Cheap Flights from London to Cambodia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London to Cambodia

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

11:15 - 18:05LGW London Gatwick-SAI Siem Reap–Angkor Intl

24h 50m2 stops Shanghai Pu Dong Hanoi Noibai

19:05 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

41h 50m2 stops Hanoi Noibai Shanghai Pu Dong

£541Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

11:15 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 55m2 stops Shanghai Pu Dong Hanoi Noibai

17:20 - 06:55SAI Siem Reap–Angkor Intl-LGW London Gatwick

43h 35m3 stops Luang Prabang Hanoi Noibai Shanghai Pu Dong

£560Multiple Airlines

Mon, 28 Sep - Mon, 5 Oct

19:25 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 20m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 21:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£627Austrian Airlines

Sat, 16 Jan - Fri, 22 Jan

19:25 - 18:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

40h 20m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 21:40SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 45m2 stops Bangkok Suvarnabhumi Vienna Intl

£649Austrian Airlines

Mon, 11 Jan - Mon, 18 Jan

11:00 - 17:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

23h 40m1 stop Ho Chi Minh City

17:55 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

20h 20m1 stop Hanoi Noibai

£740Vietnam Airlines

Tue, 10 Nov - Thu, 3 Dec

11:00 - 17:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

23h 40m1 stop Ho Chi Minh City

20:30 - 07:15SAI Siem Reap–Angkor Intl-LHR London Heathrow

17h 45m1 stop Hanoi Noibai

£741Vietnam Airlines

Tue, 10 Nov - Thu, 3 Dec

09:20 - 09:55LGW London Gatwick-SAI Siem Reap–Angkor Intl

17h 35m1 stop Singapore Changi

16:45 - 09:05SAI Siem Reap–Angkor Intl-LGW London Gatwick

23h 20m1 stop Singapore Changi

£754Singapore Airlines

Mon, 25 Jan - Sun, 14 Feb

21:45 - 16:00LHR London Heathrow-SAI Siem Reap–Angkor Intl

35h 15m1 stop Singapore Changi

16:45 - 15:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 35m1 stop Singapore Changi

£782Singapore Airlines

Mon, 25 Jan - Sun, 14 Feb

11:50 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

13h 55m1 stop Bangkok Suvarnabhumi

09:50 - 19:35SAI Siem Reap–Angkor Intl-LHR London Heathrow

16h 45m1 stop Bangkok Suvarnabhumi

£956Thai Airways

Sun, 8 Nov - Sun, 22 Nov

11:50 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

13h 55m1 stop Bangkok Suvarnabhumi

09:50 - 19:35SAI Siem Reap–Angkor Intl-LHR London Heathrow

16h 45m1 stop Bangkok Suvarnabhumi

£987Thai Airways

Wed, 30 Dec - Mon, 11 Jan

Cheap last-minute flights

Enter your travel dates to find the best prices.

09:05 - 18:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

27h 50m2 stops Vienna Intl Bangkok Suvarnabhumi

09:40 - 21:45SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 05m2 stops Bangkok Suvarnabhumi Zurich

£669Multiple Airlines

Wed, 19 Aug - Wed, 16 Sep

09:05 - 18:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

27h 50m2 stops Vienna Intl Bangkok Suvarnabhumi

09:40 - 21:45SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 05m2 stops Bangkok Suvarnabhumi Zurich

£670Multiple Airlines

Wed, 19 Aug - Wed, 16 Sep

09:05 - 18:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

27h 50m2 stops Vienna Intl Bangkok Suvarnabhumi

09:40 - 21:45SAI Siem Reap–Angkor Intl-LHR London Heathrow

18h 05m2 stops Bangkok Suvarnabhumi Zurich

£677Multiple Airlines

Wed, 19 Aug - Wed, 16 Sep

09:05 - 18:55LHR London Heathrow-SAI Siem Reap–Angkor Intl

27h 50m2 stops Vienna Intl Bangkok Suvarnabhumi

09:40 - 07:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

28h 15m2 stops Bangkok Suvarnabhumi Zurich

£710Multiple Airlines

Wed, 19 Aug - Wed, 16 Sep

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£839Vietnam Airlines

Wed, 19 Aug - Wed, 16 Sep

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

22:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 20m1 stop Ho Chi Minh City

£842Vietnam Airlines

Wed, 19 Aug - Wed, 16 Sep

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

19:10 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

27h 45m1 stop Ho Chi Minh City

£877Vietnam Airlines

Wed, 19 Aug - Wed, 16 Sep

18:55 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

16h 15m1 stop Hanoi Noibai

09:35 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

37h 20m1 stop Ho Chi Minh City

£881Vietnam Airlines

Wed, 19 Aug - Wed, 16 Sep

13:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 40m1 stop Singapore Changi

16:00 - 09:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

23h 40m1 stop Singapore Changi

£955Singapore Airlines

Wed, 19 Aug - Wed, 16 Sep

13:00 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 40m1 stop Singapore Changi

16:00 - 09:40SAI Siem Reap–Angkor Intl-LGW London Gatwick

23h 40m1 stop Singapore Changi

£957Singapore Airlines

Wed, 19 Aug - Wed, 16 Sep

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Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

Austrian Airlines

16 Jan

LHR19:25London Heathrow

16h 20m

2 stops

SAI18:45Siem Reap–Angkor Intl

22 Jan

SAI09:55Siem Reap–Angkor Intl

18h 45m

2 stops

LHR21:40London Heathrow

£627

Austrian Airlines

11 Jan

LHR19:25London Heathrow

40h 20m

2 stops

SAI18:45Siem Reap–Angkor Intl

18 Jan

SAI09:55Siem Reap–Angkor Intl

18h 45m

2 stops

LHR21:40London Heathrow

£649

Emirates flights from London to Cambodia

Our best Emirates deals on London to Cambodia flight tickets

Emirates

16 Sept

STN14:55London Stansted

24h 35m

2 stops

SAI21:30Siem Reap–Angkor Intl

29 Sept

SAI23:50Siem Reap–Angkor Intl

24h 55m

2 stops

STN18:45London Stansted

£750

Emirates

14 Sept

STN21:05London Stansted

18h 25m

2 stops

SAI21:30Siem Reap–Angkor Intl

21 Sept

SAI12:55Siem Reap–Angkor Intl

35h 50m

2 stops

STN18:45London Stansted

£752

Emirates

25 Aug

LHR20:40London Heathrow

42h 50m

2 stops

SAI21:30Siem Reap–Angkor Intl

20 Oct

SAI23:50Siem Reap–Angkor Intl

24h 50m

2 stops

LHR18:40London Heathrow

£760

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Mon 28/9

11:15-18:05

2 stops24h 50m

Siem Reap–Angkor Intl

Mon 5/10

19:05-06:55

2 stops41h 50m

£541

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Mon 28/9

11:15-17:10

2 stops23h 55m

Siem Reap–Angkor Intl

Mon 5/10

17:20-06:55

3 stops43h 35m

£560

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sat 16/1

19:25-18:45

2 stops16h 20m

Siem Reap–Angkor Intl

Fri 22/1

09:55-21:40

2 stops18h 45m

£627

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Mon 11/1

19:25-18:45

2 stops40h 20m

Siem Reap–Angkor Intl

Mon 18/1

09:55-21:40

2 stops18h 45m

£649

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Tue 10/11

11:00-17:40

1 stop23h 40m

Siem Reap–Angkor Intl

Thu 3/12

17:55-07:15

1 stop20h 20m

£740

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Tue 10/11

11:00-17:40

1 stop23h 40m

Siem Reap–Angkor Intl

Thu 3/12

20:30-07:15

1 stop17h 45m

£741

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Mon 25/1

09:20-09:55

1 stop17h 35m

Siem Reap–Angkor Intl

Sun 14/2

16:45-09:05

1 stop23h 20m

£754

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Mon 25/1

21:45-16:00

1 stop35h 15m

Siem Reap–Angkor Intl

Sun 14/2

16:45-15:20

1 stop29h 35m

£782

Fastest return journey

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sun 8/11

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Sun 22/11

09:50-19:35

1 stop16h 45m

£956

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Wed 30/12

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Mon 11/1

09:50-19:35

1 stop16h 45m

£987

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 London to Cambodia

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

What is the cheapest month to fly to Cambodia?

In general, November is the cheapest month to fly from London to Cambodia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £589. If you aren’t able to travel during the month of November, then book flights to Cambodia from London during October instead. Flights to Cambodia in October, while not as cheap as those in November, still average around £623.

How far in advance should I book a flight from London to Cambodia?

You are more likely to see cheaper flights to Cambodia from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Cambodia for around £717 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cambodia from London for as low as £542 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 40% on your flight if you consider stops on a London to Cambodia flight.

Cheap London to Cambodia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Cambodia

Best price found	£305
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to Cambodia from London in the past 72 hours is £305. The best return flight deal from London to Cambodia found on momondo in the last 72 hours is £541.

The fastest flight from London to Cambodia takes 15h 35m

There are no direct flights from London to Cambodia. There are no popular flight routes from London to Cambodia.

Search flight deals

Frequently asked questions about flying from London to Cambodia

When did momondo last update prices for flights from London to Cambodia?
Prices for flights from London to Cambodia were last updated today.
How many operators does momondo search for flights from London to Cambodia?
The number of operators available for flights from London to Cambodia is 4 as of August 2026.
How old do you have to be to fly from London to Cambodia?
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 London to Cambodia.
What documentation or ID do you need to fly to Cambodia?
The travel and health documents required for your trip to Cambodia can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Cambodia. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from London to Cambodia

Compare and see reviews for airlines that fly from London to Cambodia with momondo

Airline	Rating	Free Cancellation	Price
Air China	PriceFrom £265	Free Cancellation	Rating 7.4 160 reviews	Search Air China flights
Shenzhen Airlines	PriceFrom £453	Free Cancellation	Rating 7.9 26 reviews	Search Shenzhen Airlines flights
China Southern	PriceFrom £465	Free Cancellation	Rating 7.4 175 reviews	Search China Southern flights
Etihad Airways	PriceFrom £505	Free Cancellation	Rating 7.3 1,504 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £534	Free Cancellation	Rating 7.6 947 reviews	Search Austrian Airlines flights
China Eastern	PriceFrom £572	Free Cancellation	Rating 7.3 232 reviews	Search China Eastern flights
Malaysia Airlines	PriceFrom £582	Free Cancellation	Rating 7.3 315 reviews	Search Malaysia Airlines flights
Singapore Airlines	PriceFrom £593	Free Cancellation	Rating 8.2 1,584 reviews	Search Singapore Airlines flights
Vietnam Airlines	PriceFrom £611	Free Cancellation	Rating 7.7 284 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £700	Free Cancellation	Rating 7.6 1,453 reviews	Search Cathay Pacific flights

Why use momondo?

Why should I use momondo to find a flight deal from London to Cambodia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cambodia from London.

Can I find flights from London to Cambodia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for London to Cambodia flights to just show those with flexible booking policies.

How can momondo help me find flights from London to Cambodia?

Once you have performed a search for London to Cambodia 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 London to Cambodia right now. Can momondo alert me if prices change?

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

An easier way to manage your Cambodia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Find better results for your trip to Cambodia

Popular cities

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Other flights to Cambodia

Airlines

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Complete your trip

Feeling lucky

Popular Cities in Cambodia

Flights to Phnom Penh

Flights to Siem Reapfrom £625

Cheap flights from London to Cambodia from £305

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Cambodia departing on 27/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from London to Cambodia

Cheap return flights

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Cheap last-minute flights

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

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Austrian Airlines flights from London to Cambodia

Our best Austrian Airlines deals on London to Cambodia flight tickets

Emirates flights from London to Cambodia

Our best Emirates deals on London to Cambodia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from London to Cambodia that are best for you.

See travel insights to Cambodia from

How to get the cheapest flight ticket from London to Cambodia

What is the cheapest month to fly to Cambodia?

How far in advance should I book a flight from London to Cambodia?

Can stopping save me money on London to Cambodia flights?

What is the cheapest airline that flies from London to Cambodia?

Which airlines fly to Cambodia?

Cheap London to Cambodia flight deals and tips

Best price found

Fastest flight time

Direct flights

Frequently asked questions about flying from London to Cambodia

Best airlines flying from London to Cambodia

Compare and see reviews for airlines that fly from London to Cambodia with momondo

Why use momondo?

An easier way to manage your Cambodia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Cambodia

Popular Cities in Cambodia

Popular flights according to clicks in the last 7 days on momondo

London flight routes

According to popular flight searches on momondo this year

Cambodia flight routes

According to popular flight searches on momondo this year

Fly your favourite airline to Cambodia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Cambodia

List of cabin classes available on flights landing in Cambodia. Availability may vary depending on flight origin and airline.

Complete your trip to Cambodia

Explore popular destinations other users love

According to popular flight searches on momondo this year