Cheap flights from London to Cambodia from £338

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 27/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
10:00 - 19:05
LHR
-
SAI
27h 05m
2 stops
Multiple Airlines Logo
09:40 - 07:30
SAI
-
LHR
27h 50m
2 stops
£702Multiple Airlines
Sat, 6 Jun - Sat, 13 Jun
SWISS Logo
09:25 - 19:05
LGW
-
SAI
27h 40m
2 stops
SWISS Logo
09:45 - 08:25
SAI
-
LGW
28h 40m
2 stops
£713SWISS
Tue, 26 May - Wed, 10 Jun
Austrian Airlines Logo
06:00 - 18:55
LHR
-
SAI
30h 55m
2 stops
Austrian Airlines Logo
12:55 - 08:20
SAI
-
LHR
25h 25m
2 stops
£714Austrian Airlines
Fri, 25 Sep - Tue, 29 Sep
Multiple Airlines Logo
10:00 - 21:30
LHR
-
SAI
29h 30m
2 stops
Multiple Airlines Logo
09:45 - 14:50
SAI
-
LHR
35h 05m
2 stops
£737Multiple Airlines
Mon, 25 May - Tue, 9 Jun
Emirates Logo
14:35 - 21:30
LGW
-
SAI
24h 55m
2 stops
Emirates Logo
23:50 - 18:25
SAI
-
LGW
25h 35m
2 stops
£742Emirates
Fri, 2 Oct - Tue, 27 Oct
SWISS Logo
13:50 - 18:55
LHR
-
SAI
23h 05m
2 stops
SWISS Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£753SWISS
Wed, 26 Aug - Wed, 21 Oct
Multiple Airlines Logo
19:30 - 18:55
LHR
-
SAI
17h 25m
2 stops
Multiple Airlines Logo
19:35 - 11:25
SAI
-
LHR
21h 50m
2 stops
£754Multiple Airlines
Fri, 25 Sep - Tue, 29 Sep
Emirates Logo
21:45 - 21:30
LGW
-
SAI
17h 45m
2 stops
Emirates Logo
23:50 - 18:25
SAI
-
LGW
25h 35m
2 stops
£754Emirates
Mon, 28 Sep - Tue, 27 Oct
Emirates Logo
10:05 - 21:30
LGW
-
SAI
29h 25m
2 stops
Emirates Logo
13:20 - 20:50
SAI
-
LGW
38h 30m
2 stops
£755Emirates
Mon, 28 Sep - Wed, 16 Dec
Vietnam Airlines Logo
06:15 - 19:40
LHR
-
KOS
31h 25m
2 stops
Vietnam Airlines Logo
09:50 - 16:55
KOS
-
LHR
37h 05m
1 stop
£1,062Vietnam Airlines
Wed, 10 Jun - Wed, 17 Jun

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SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets
SWISS
26 May
LGW09:25London Gatwick
27h 40m
2 stops
SAI19:05Siem Reap–Angkor Intl
10 Jun
SAI09:45Siem Reap–Angkor Intl
28h 40m
2 stops
LGW08:25London Gatwick
£713
SWISS
14 Jun
LGW09:05London Gatwick
27h 50m
2 stops
SAI18:55Siem Reap–Angkor Intl
6 Jul
SAI09:40Siem Reap–Angkor Intl
28h 45m
2 stops
LGW08:25London Gatwick
£714
SWISS
14 Jun
LHR06:00London Heathrow
30h 55m
2 stops
SAI18:55Siem Reap–Angkor Intl
6 Jul
SAI09:40Siem Reap–Angkor Intl
28h 15m
2 stops
LHR07:55London Heathrow
£715

Emirates flights from London to Cambodia

Our best Emirates deals on London to Cambodia flight tickets
Emirates
14 Jun
LGW23:55London Gatwick
39h 35m
2 stops
SAI21:30Siem Reap–Angkor Intl
7 Jul
SAI23:50Siem Reap–Angkor Intl
25h 55m
2 stops
LGW19:45London Gatwick
£735
Emirates
2 Oct
LGW14:35London Gatwick
24h 55m
2 stops
SAI21:30Siem Reap–Angkor Intl
27 Oct
SAI23:50Siem Reap–Angkor Intl
25h 35m
2 stops
LGW18:25London Gatwick
£742
Emirates
28 Sept
LGW21:45London Gatwick
17h 45m
2 stops
SAI21:30Siem Reap–Angkor Intl
27 Oct
SAI23:50Siem Reap–Angkor Intl
25h 35m
2 stops
LGW18:25London Gatwick
£754

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 27 April 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

Sat 6/6

10:00-19:05

2 stops27h 05m

Siem Reap–Angkor Intl

Sat 13/6

09:40-07:30

2 stops27h 50m

£702

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Tue 26/5

09:25-19:05

2 stops27h 40m

Siem Reap–Angkor Intl

Wed 10/6

09:45-08:25

2 stops28h 40m

£713

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 25/9

06:00-18:55

2 stops30h 55m

Siem Reap–Angkor Intl

Tue 29/9

12:55-08:20

2 stops25h 25m

£714

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 25/5

10:00-21:30

2 stops29h 30m

Siem Reap–Angkor Intl

Tue 9/6

09:45-14:50

2 stops35h 05m

£737

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 2/10

14:35-21:30

2 stops24h 55m

Siem Reap–Angkor Intl

Tue 27/10

23:50-18:25

2 stops25h 35m

£742

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 26/8

13:50-18:55

2 stops23h 05m

Siem Reap–Angkor Intl

Wed 21/10

09:40-21:45

2 stops18h 05m

£753
Fastest return journey

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Fri 25/9

19:30-18:55

2 stops17h 25m

Siem Reap–Angkor Intl

Tue 29/9

19:35-11:25

2 stops21h 50m

£754

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 28/9

21:45-21:30

2 stops17h 45m

Siem Reap–Angkor Intl

Tue 27/10

23:50-18:25

2 stops25h 35m

£754

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 28/9

10:05-21:30

2 stops29h 25m

Siem Reap–Angkor Intl

Wed 16/12

13:20-20:50

2 stops38h 30m

£755

LondonKrong Preah Sihanouk

LHR - KOS

LHRKOS

London Heathrow

Wed 10/6

06:15-19:40

2 stops31h 25m

Krong Preah Sihanouk Sihanoukville

Wed 17/6

09:50-16:55

1 stop37h 05m

£1,062

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 £267. 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 £699 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 £583 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 24% 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

16h 20m

Direct flights

None
The fastest flight from London to Cambodia takes 16h 20m
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
148 reviews
Search Air China flights
China SouthernPriceFrom £360Free CancellationRating
7.4
151 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £412Free CancellationRating
7.8
25 reviews
Search Shenzhen Airlines flights
Etihad AirwaysPriceFrom £506Free CancellationRating
7.3
1,435 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £535Free CancellationRating
7.6
911 reviews
Search Austrian Airlines flights
China EasternPriceFrom £545Free CancellationRating
7.3
209 reviews
Search China Eastern flights
Singapore AirlinesPriceFrom £558Free CancellationRating
8.2
1,502 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £583Free CancellationRating
7.4
307 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £594Free CancellationRating
6.8
7,956 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £612Free CancellationRating
7.7
264 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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1 adult
Wed 27/5
Wed 3/6

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