Cheap flights from London to Cambodia from £321

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 30/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from London to Cambodia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:30 - 18:55
LHR
-
SAI
17h 25m
2 stops
Multiple Airlines Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£591Multiple Airlines
Thu, 3 Sep - Tue, 29 Sep
SWISS Logo
09:25 - 18:55
LGW
-
SAI
27h 30m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£593SWISS
Wed, 2 Sep - Thu, 1 Oct
SWISS Logo
13:50 - 18:55
LHR
-
SAI
23h 05m
2 stops
SWISS Logo
09:40 - 07:55
SAI
-
LHR
28h 15m
2 stops
£594SWISS
Wed, 2 Sep - Thu, 1 Oct
SWISS Logo
18:40 - 09:50
LHR
-
SAI
32h 10m
2 stops
SWISS Logo
09:55 - 21:40
SAI
-
LHR
18h 45m
2 stops
£602SWISS
Sat, 31 Oct - Mon, 9 Nov
SWISS Logo
18:40 - 09:40
LHR
-
SAI
33h 00m
2 stops
SWISS Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£603SWISS
Wed, 30 Sep - Mon, 5 Oct
SWISS Logo
18:40 - 09:40
LHR
-
SAI
33h 00m
2 stops
SWISS Logo
16:45 - 08:05
SAI
-
LHR
22h 20m
2 stops
£608SWISS
Wed, 30 Sep - Tue, 27 Oct
China Eastern Logo
22:00 - 20:10
LGW
-
SAI
40h 10m
3 stops
China Eastern Logo
21:10 - 19:15
SAI
-
LGW
52h 05m
2 stops
£624China Eastern
Mon, 31 Aug - Fri, 2 Oct
China Eastern Logo
10:30 - 21:00
LGW
-
SAI
51h 30m
2 stops
China Eastern Logo
22:00 - 06:30
SAI
-
LGW
39h 30m
2 stops
£624China Eastern
Tue, 27 Oct - Tue, 10 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
£728Emirates
Mon, 2 Nov - Tue, 24 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
£747Emirates
Fri, 6 Nov - Tue, 24 Nov

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SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets
SWISS
2 Sept
LGW09:25London Gatwick
27h 30m
2 stops
SAI18:55Siem Reap–Angkor Intl
1 Oct
SAI09:40Siem Reap–Angkor Intl
28h 45m
2 stops
LGW08:25London Gatwick
£593
SWISS
2 Sept
LHR13:50London Heathrow
23h 05m
2 stops
SAI18:55Siem Reap–Angkor Intl
1 Oct
SAI09:40Siem Reap–Angkor Intl
28h 15m
2 stops
LHR07:55London Heathrow
£594
SWISS
31 Oct
LHR18:40London Heathrow
32h 10m
2 stops
SAI09:50Siem Reap–Angkor Intl
9 Nov
SAI09:55Siem Reap–Angkor Intl
18h 45m
2 stops
LHR21:40London Heathrow
£602

China Eastern flights from London to Cambodia

Our best China Eastern deals on London to Cambodia flight tickets
China Eastern
31 Aug
LGW22:00London Gatwick
40h 10m
3 stops
SAI20:10Siem Reap–Angkor Intl
2 Oct
SAI21:10Siem Reap–Angkor Intl
52h 05m
2 stops
LGW19:15London Gatwick
£624
China Eastern
27 Oct
LGW10:30London Gatwick
51h 30m
2 stops
SAI21:00Siem Reap–Angkor Intl
10 Nov
SAI22:00Siem Reap–Angkor Intl
39h 30m
2 stops
LGW06:30London Gatwick
£624
China Eastern
30 Sept
LGW22:00London Gatwick
40h 10m
3 stops
SAI20:10Siem Reap–Angkor Intl
27 Oct
SAI22:00Siem Reap–Angkor Intl
39h 30m
2 stops
LGW06:30London Gatwick
£647

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 2 July 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
Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Thu 3/9

19:30-18:55

2 stops17h 25m

Siem Reap–Angkor Intl

Tue 29/9

09:40-21:45

2 stops18h 05m

£591

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 2/9

09:25-18:55

2 stops27h 30m

Siem Reap–Angkor Intl

Thu 1/10

09:40-08:25

2 stops28h 45m

£593

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 2/9

13:50-18:55

2 stops23h 05m

Siem Reap–Angkor Intl

Thu 1/10

09:40-07:55

2 stops28h 15m

£594

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Sat 31/10

18:40-09:50

2 stops32h 10m

Siem Reap–Angkor Intl

Mon 9/11

09:55-21:40

2 stops18h 45m

£602

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 30/9

18:40-09:40

2 stops33h 00m

Siem Reap–Angkor Intl

Mon 5/10

09:40-21:45

2 stops18h 05m

£603

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 30/9

18:40-09:40

2 stops33h 00m

Siem Reap–Angkor Intl

Tue 27/10

16:45-08:05

2 stops22h 20m

£608

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 31/8

22:00-20:10

3 stops40h 10m

Siem Reap–Angkor Intl

Fri 2/10

21:10-19:15

2 stops52h 05m

£624

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 27/10

10:30-21:00

2 stops51h 30m

Siem Reap–Angkor Intl

Tue 10/11

22:00-06:30

2 stops39h 30m

£624

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Mon 2/11

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Tue 24/11

23:50-17:55

2 stops25h 05m

£728

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Fri 6/11

14:05-21:10

2 stops24h 05m

Siem Reap–Angkor Intl

Tue 24/11

23:50-17:55

2 stops25h 05m

£747

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 £189. If you aren’t able to travel during the month of October, then book flights to Cambodia from London during July instead. Flights to Cambodia in July, while not as cheap as those in October, still average around £189.

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 £746 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 £554 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 6% 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

13h 55m

Direct flights

None
The fastest flight from London to Cambodia takes 13h 55m
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 £271Free CancellationRating
7.3
157 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £338Free CancellationRating
7.9
26 reviews
Search Shenzhen Airlines flights
China SouthernPriceFrom £475Free CancellationRating
7.5
155 reviews
Search China Southern flights
Etihad AirwaysPriceFrom £516Free CancellationRating
7.3
1,471 reviews
Search Etihad Airways flights
China EasternPriceFrom £546Free CancellationRating
7.3
226 reviews
Search China Eastern flights
Austrian AirlinesPriceFrom £546Free CancellationRating
7.6
938 reviews
Search Austrian Airlines flights
Malaysia AirlinesPriceFrom £595Free CancellationRating
7.3
312 reviews
Search Malaysia Airlines flights
Singapore AirlinesPriceFrom £607Free CancellationRating
8.2
1,557 reviews
Search Singapore Airlines flights
Vietnam AirlinesPriceFrom £625Free CancellationRating
7.7
275 reviews
Search Vietnam Airlines flights
Cathay PacificPriceFrom £710Free CancellationRating
7.6
1,402 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

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1 adult
Sat 1/8
Sat 8/8

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