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

SWISS is the most popular carrier 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.

£263 Cheap Flights from London to Cambodia in 2026

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Find the cheapest flights from London to Cambodia

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Cheap return flights

Enter your travel dates to find the best prices.

12:35 - 18:05LGW London Gatwick-SAI Siem Reap–Angkor Intl

23h 30m2 stops Beijing Capital Hanoi Noibai

19:05 - 07:00SAI Siem Reap–Angkor Intl-LGW London Gatwick

41h 55m2 stops Hanoi Noibai Shanghai Pu Dong

£525Multiple Airlines

Thu, 10 Sep - Thu, 8 Oct

12:35 - 17:10LGW London Gatwick-SAI Siem Reap–Angkor Intl

22h 35m2 stops Beijing Capital Hanoi Noibai

17:20 - 07:00SAI Siem Reap–Angkor Intl-LGW London Gatwick

43h 40m3 stops Luang Prabang Hanoi Noibai Shanghai Pu Dong

£566Multiple Airlines

Thu, 10 Sep - Thu, 8 Oct

18:55 - 18:20LHR London Heathrow-SAI Siem Reap–Angkor Intl

17h 25m1 stop Ho Chi Minh City

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

24h 20m1 stop Ho Chi Minh City

£717Vietnam Airlines

Thu, 1 Oct - Wed, 14 Oct

19:50 - 17:10LHR London Heathrow-SAI Siem Reap–Angkor Intl

15h 20m1 stop Hanoi Noibai

18:05 - 16:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

28h 50m1 stop Hanoi Noibai

£731Vietnam Airlines

Sun, 13 Sep - Tue, 20 Oct

13:05 - 16:00LGW London Gatwick-SAI Siem Reap–Angkor Intl

19h 55m1 stop Singapore Changi

10:45 - 09:05SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 20m1 stop Singapore Changi

£759Singapore Airlines

Tue, 12 Jan - Thu, 11 Feb

13:05 - 16:00LGW London Gatwick-SAI Siem Reap–Angkor Intl

19h 55m1 stop Singapore Changi

10:45 - 09:05SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 20m1 stop Singapore Changi

£775Singapore Airlines

Thu, 12 Nov - Thu, 19 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

£958Thai Airways

Sat, 9 Jan - Sat, 16 Jan

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

£963Thai Airways

Sun, 1 Nov - Sun, 29 Nov

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

40h 20m2 stops Vienna Intl Bangkok Suvarnabhumi

19:25 - 13:05SAI Siem Reap–Angkor Intl-LHR London Heathrow

24h 40m2 stops Bangkok Suvarnabhumi Vienna Intl

£1,716Austrian Airlines

Thu, 29 Oct - Sat, 21 Nov

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

16h 20m2 stops Vienna Intl Bangkok Suvarnabhumi

09:55 - 08:20SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 25m2 stops Bangkok Suvarnabhumi Vienna Intl

£1,848Austrian Airlines

Sun, 20 Dec - Sat, 2 Jan

Cheap last-minute 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

£647Multiple Airlines

Mon, 24 Aug - Mon, 31 Aug

23:55 - 21:30LGW London Gatwick-SAI Siem Reap–Angkor Intl

39h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

23:50 - 19:45SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

£730Emirates

Thu, 27 Aug - Tue, 15 Sep

14:35 - 21:30LGW London Gatwick-SAI Siem Reap–Angkor Intl

24h 55m2 stops Dubai Intl Bangkok Suvarnabhumi

23:50 - 21:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

27h 40m2 stops Bangkok Suvarnabhumi Dubai Intl

£730Emirates

Wed, 26 Aug - Tue, 15 Sep

23:55 - 21:30LGW London Gatwick-SAI Siem Reap–Angkor Intl

39h 35m2 stops Dubai Intl Bangkok Suvarnabhumi

23:50 - 19:45SAI Siem Reap–Angkor Intl-LGW London Gatwick

25h 55m2 stops Bangkok Suvarnabhumi Dubai Intl

£730Emirates

Tue, 25 Aug - Tue, 15 Sep

19:50 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

30h 55m1 stop Ho Chi Minh City

15:00 - 17:50SAI Siem Reap–Angkor Intl-LHR London Heathrow

32h 50m1 stop Ho Chi Minh City

£790Vietnam Airlines

Tue, 25 Aug - Mon, 14 Sep

18:55 - 08:45LHR London Heathrow-SAI Siem Reap–Angkor Intl

31h 50m2 stops Hanoi Noibai Ho Chi Minh City

19:40 - 17:50SAI Siem Reap–Angkor Intl-LHR London Heathrow

28h 10m1 stop Ho Chi Minh City

£809Vietnam Airlines

Mon, 24 Aug - Mon, 14 Sep

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

16h 15m1 stop Hanoi Noibai

18:05 - 17:05SAI Siem Reap–Angkor Intl-LHR London Heathrow

29h 00m1 stop Hanoi Noibai

£810Vietnam Airlines

Wed, 26 Aug - Sun, 13 Sep

13:10 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 30m1 stop Singapore Changi

10:30 - 09:30SAI Siem Reap–Angkor Intl-LGW London Gatwick

29h 00m1 stop Singapore Changi

£1,068Singapore Airlines

Mon, 24 Aug - Mon, 14 Sep

13:10 - 09:40LGW London Gatwick-SAI Siem Reap–Angkor Intl

38h 30m1 stop Singapore Changi

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

23h 40m1 stop Singapore Changi

£1,068Singapore Airlines

Mon, 24 Aug - Wed, 16 Sep

09:25 - 09:40LHR London Heathrow-SAI Siem Reap–Angkor Intl

18h 15m1 stop Singapore Changi

10:30 - 05:55SAI Siem Reap–Angkor Intl-LHR London Heathrow

25h 25m1 stop Singapore Changi

£1,594Singapore Airlines

Fri, 28 Aug - Mon, 14 Sep

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SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets

SWISS

10 Sept

LHR13:50London Heathrow

23h 05m

2 stops

SAI18:55Siem Reap–Angkor Intl

8 Oct

SAI09:40Siem Reap–Angkor Intl

28h 15m

2 stops

LHR07:55London Heathrow

£627

SWISS

13 Sept

LGW09:05London Gatwick

27h 50m

2 stops

SAI18:55Siem Reap–Angkor Intl

21 Oct

SAI09:40Siem Reap–Angkor Intl

28h 45m

2 stops

LGW08:25London Gatwick

£632

SWISS

13 Sept

LHR06:00London Heathrow

30h 55m

2 stops

SAI18:55Siem Reap–Angkor Intl

21 Oct

SAI09:40Siem Reap–Angkor Intl

18h 05m

2 stops

LHR21:45London Heathrow

£633

Lufthansa flights from London to Cambodia

Our best Lufthansa deals on London to Cambodia flight tickets

Lufthansa

23 Jan

LHR08:45London Heathrow

27h 00m

2 stops

SAI18:45Siem Reap–Angkor Intl

14 Feb

SAI19:25Siem Reap–Angkor Intl

30h 10m

2 stops

LHR18:35London Heathrow

£679

Lufthansa

2 Sept

LHR17:50London Heathrow

19h 05m

2 stops

SAI18:55Siem Reap–Angkor Intl

30 Sept

SAI16:00Siem Reap–Angkor Intl

22h 40m

2 stops

LHR08:40London Heathrow

£706

Lufthansa

8 Jan

LCY18:15London City

32h 40m

2 stops

SAI09:55Siem Reap–Angkor Intl

18 Jan

SAI16:50Siem Reap–Angkor Intl

23h 25m

2 stops

LCY09:15London City

£732

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Thu 10/9

12:35-18:05

2 stops23h 30m

Siem Reap–Angkor Intl

Thu 8/10

19:05-07:00

2 stops41h 55m

£525

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Thu 10/9

12:35-17:10

2 stops22h 35m

Siem Reap–Angkor Intl

Thu 8/10

17:20-07:00

3 stops43h 40m

£566

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 1/10

18:55-18:20

1 stop17h 25m

Siem Reap–Angkor Intl

Wed 14/10

22:35-16:55

1 stop24h 20m

£717

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sun 13/9

19:50-17:10

1 stop15h 20m

Siem Reap–Angkor Intl

Tue 20/10

18:05-16:55

1 stop28h 50m

£731

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Tue 12/1

13:05-16:00

1 stop19h 55m

Siem Reap–Angkor Intl

Thu 11/2

10:45-09:05

1 stop29h 20m

£759

LondonSiem Reap

LGW London Gatwick - SAI Siem Reap–Angkor Intl

LGWSAI

London Gatwick

Thu 12/11

13:05-16:00

1 stop19h 55m

Siem Reap–Angkor Intl

Thu 19/11

10:45-09:05

1 stop29h 20m

£775

Fastest return journey

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sat 9/1

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Sat 16/1

09:50-19:35

1 stop16h 45m

£958

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sun 1/11

11:50-08:45

1 stop13h 55m

Siem Reap–Angkor Intl

Sun 29/11

09:50-19:35

1 stop16h 45m

£963

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Thu 29/10

19:25-18:45

2 stops40h 20m

Siem Reap–Angkor Intl

Sat 21/11

19:25-13:05

2 stops24h 40m

£1,716

LondonSiem Reap

LHR London Heathrow - SAI Siem Reap–Angkor Intl

LHRSAI

London Heathrow

Sun 20/12

19:25-18:45

2 stops16h 20m

Siem Reap–Angkor Intl

Sat 2/1

09:55-08:20

2 stops29h 25m

£1,848

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 £588. 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 £610.

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 £710 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 £538 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	£263
Fastest flight time	15h 35m
Direct flights	None

The best one-way flight to Cambodia from London in the past 72 hours is £263. The best return flight deal from London to Cambodia found on momondo in the last 72 hours is £525.

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 £263	Free Cancellation	Rating 7.4 161 reviews	Search Air China flights
Shenzhen Airlines	PriceFrom £449	Free Cancellation	Rating 7.9 26 reviews	Search Shenzhen Airlines flights
China Southern	PriceFrom £462	Free Cancellation	Rating 7.3 172 reviews	Search China Southern flights
Etihad Airways	PriceFrom £501	Free Cancellation	Rating 7.3 1,511 reviews	Search Etihad Airways flights
Austrian Airlines	PriceFrom £531	Free Cancellation	Rating 7.6 949 reviews	Search Austrian Airlines flights
China Eastern	PriceFrom £568	Free Cancellation	Rating 7.3 234 reviews	Search China Eastern flights
Malaysia Airlines	PriceFrom £578	Free Cancellation	Rating 7.3 315 reviews	Search Malaysia Airlines flights
Singapore Airlines	PriceFrom £589	Free Cancellation	Rating 8.2 1,585 reviews	Search Singapore Airlines flights
Vietnam Airlines	PriceFrom £607	Free Cancellation	Rating 7.7 286 reviews	Search Vietnam Airlines flights
Cathay Pacific	PriceFrom £695	Free Cancellation	Rating 7.6 1,457 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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Airlines

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Complete your trip

Feeling lucky

Popular Cities in Cambodia

Flights to Phnom Penh

Flights to Siem Reapfrom £644

Cheap flights from London to Cambodia from £263

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 9/9. 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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SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets

Lufthansa flights from London to Cambodia

Our best Lufthansa 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