Cheap flights from London to Cambodia from £378

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 20/5. 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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0 bags

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Cheap return flights

Enter your travel dates to find the best prices.
Etihad Airways Logo
09:30 - 09:00
LHR
-
SAI
41h 30m
2 stops
Etihad Airways Logo
19:20 - 18:45
SAI
-
LHR
29h 25m
2 stops
£576Etihad Airways
Fri, 12 Jun - Fri, 26 Jun
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
27h 30m
3 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£580China Eastern
Wed, 4 Nov - Sat, 28 Nov
Etihad Airways Logo
09:30 - 11:15
LHR
-
SAI
19h 45m
2 stops
Etihad Airways Logo
19:20 - 18:45
SAI
-
LHR
29h 25m
2 stops
£588Etihad Airways
Sun, 14 Jun - Tue, 30 Jun
SWISS Logo
09:25 - 18:55
LGW
-
SAI
27h 30m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£679SWISS
Sat, 12 Sep - Wed, 23 Sep
Multiple Airlines Logo
17:00 - 19:05
LGW
-
SAI
43h 05m
2 stops
Multiple Airlines Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£695Multiple Airlines
Wed, 4 Nov - Sat, 28 Nov
SWISS Logo
09:05 - 18:55
LGW
-
SAI
27h 50m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£719SWISS
Sun, 14 Jun - Tue, 30 Jun
Multiple Airlines Logo
10:30 - 13:15
LGW
-
SAI
43h 45m
2 stops
Multiple Airlines Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£744Multiple Airlines
Fri, 6 Nov - Sat, 28 Nov
Emirates Logo
20:15 - 21:10
STN
-
SAI
41h 55m
2 stops
Emirates Logo
23:50 - 12:05
SAI
-
STN
43h 15m
2 stops
£760Emirates
Tue, 3 Nov - Sat, 21 Nov
Singapore Airlines Logo
13:00 - 15:55
LGW
-
SAI
19h 55m
1 stop
Singapore Airlines Logo
10:45 - 09:00
SAI
-
LGW
29h 15m
1 stop
£761Singapore Airlines
Wed, 4 Nov - Sat, 28 Nov
Emirates Logo
14:05 - 21:10
STN
-
SAI
24h 05m
2 stops
Emirates Logo
23:50 - 17:55
SAI
-
STN
25h 05m
2 stops
£763Emirates
Wed, 4 Nov - Thu, 26 Nov

China Eastern flights from London to Cambodia

Our best China Eastern deals on London to Cambodia flight tickets
China Eastern
4 Nov
LGW10:30London Gatwick
27h 30m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
2 stops
LGW06:30London Gatwick
£580
China Eastern
8 Nov
LGW17:00London Gatwick
45h 00m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
3 stops
LGW06:30London Gatwick
£616
China Eastern
6 Nov
LGW10:30London Gatwick
27h 30m
3 stops
SAI21:00Siem Reap–Angkor Intl
28 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
3 stops
LGW06:30London Gatwick
£629

Singapore Airlines flights from London to Cambodia

Our best Singapore Airlines deals on London to Cambodia flight tickets
Singapore Airlines
4 Nov
LGW13:00London Gatwick
19h 55m
1 stop
SAI15:55Siem Reap–Angkor Intl
28 Nov
SAI10:45Siem Reap–Angkor Intl
29h 15m
1 stop
LGW09:00London Gatwick
£761
Singapore Airlines
6 Nov
LGW09:20London Gatwick
23h 35m
1 stop
SAI15:55Siem Reap–Angkor Intl
28 Nov
SAI10:45Siem Reap–Angkor Intl
26h 40m
1 stop
LGW06:25London Gatwick
£789
Singapore Airlines
5 Nov
LHR09:10London Heathrow
23h 45m
1 stop
SAI15:55Siem Reap–Angkor Intl
15 Nov
SAI10:45Siem Reap–Angkor Intl
27h 55m
1 stop
LHR07:40London Heathrow
£790

momondo Fare Finder

 
Customise your flight search to find flights from London to Cambodia 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 May 2026.
Use the filters below to find and compare flights from London to Cambodia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 12/6

09:30-09:00

2 stops41h 30m

Siem Reap–Angkor Intl

Fri 26/6

19:20-18:45

2 stops29h 25m

£576

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£580
Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Sun 14/6

09:30-11:15

2 stops19h 45m

Siem Reap–Angkor Intl

Tue 30/6

19:20-18:45

2 stops29h 25m

£588

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sat 12/9

09:25-18:55

2 stops27h 30m

Siem Reap–Angkor Intl

Wed 23/9

09:40-08:25

2 stops28h 45m

£679

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

17:00-19:05

2 stops43h 05m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£695

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Sun 14/6

09:05-18:55

2 stops27h 50m

Siem Reap–Angkor Intl

Tue 30/6

09:40-08:25

2 stops28h 45m

£719

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 6/11

10:30-13:15

2 stops43h 45m

Siem Reap–Angkor Intl

Sat 28/11

22:00-06:30

2 stops39h 30m

£744

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Tue 3/11

20:15-21:10

2 stops41h 55m

Siem Reap–Angkor Intl

Sat 21/11

23:50-12:05

2 stops43h 15m

£760

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

13:00-15:55

1 stop19h 55m

Siem Reap–Angkor Intl

Sat 28/11

10:45-09:00

1 stop29h 15m

£761

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Wed 4/11

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Thu 26/11

23:50-17:55

2 stops25h 05m

£763

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 Cambodia from

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

What is the cheapest month to fly to Cambodia?

In general, October 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 £266. If you aren’t able to travel during the month of October, then book flights to Cambodia from London during September instead. Flights to Cambodia in September, while not as cheap as those in October, still average around £274.

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 £697 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 £582 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 7% 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

Fastest flight time

17h 25m

Direct flights

None
The fastest flight from London to Cambodia takes 17h 25m
There are no direct flights from London to Cambodia. There are no popular flight routes from London to Cambodia.

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?

  • 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 ChinaPriceFrom £265Free CancellationRating
7.3
149 reviews
Search Air China flights
China SouthernPriceFrom £359Free CancellationRating
7.5
151 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £412Free CancellationRating
7.8
25 reviews
Search Shenzhen Airlines flights
Etihad AirwaysPriceFrom £505Free CancellationRating
7.3
1,437 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £535Free CancellationRating
7.6
915 reviews
Search Austrian Airlines flights
China EasternPriceFrom £545Free CancellationRating
7.3
211 reviews
Search China Eastern flights
Singapore AirlinesPriceFrom £558Free CancellationRating
8.2
1,510 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £583Free CancellationRating
7.4
307 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £593Free CancellationRating
6.8
7,996 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £614Free CancellationRating
7.7
268 reviews
Search Vietnam Airlines 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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Fri 12/6
Fri 19/6

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