Cheap flights from London to Cambodia from £329

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 7/3. 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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Cheap return flights

Enter your travel dates to find the best prices.
SWISS Logo
18:40 - 09:40
LHR
-
SAI
33h 00m
2 stops
SWISS Logo
10:30 - 07:55
SAI
-
LHR
27h 25m
2 stops
£552SWISS
Mon, 1 Jun - Mon, 15 Jun
Multiple Airlines Logo
18:40 - 09:40
LHR
-
SAI
33h 00m
2 stops
Multiple Airlines Logo
16:00 - 08:40
SAI
-
LHR
22h 40m
2 stops
£561Multiple Airlines
Wed, 17 Jun - Wed, 24 Jun
Lufthansa Logo
09:00 - 18:45
LHR
-
SAI
27h 45m
2 stops
Lufthansa Logo
10:30 - 08:40
SAI
-
LHR
28h 10m
2 stops
£567Lufthansa
Sun, 10 May - Tue, 26 May
SWISS Logo
09:20 - 18:45
LGW
-
SAI
27h 25m
2 stops
SWISS Logo
16:00 - 08:25
SAI
-
LGW
22h 25m
2 stops
£592SWISS
Wed, 17 Jun - Wed, 24 Jun
China Eastern Logo
11:35 - 20:10
LGW
-
SAI
50h 35m
3 stops
China Eastern Logo
21:10 - 15:10
SAI
-
LGW
48h 00m
3 stops
£613China Eastern
Wed, 17 Jun - Wed, 24 Jun
China Eastern Logo
18:05 - 20:10
LGW
-
SAI
44h 05m
3 stops
China Eastern Logo
21:10 - 06:40
SAI
-
LGW
39h 30m
3 stops
£614China Eastern
Mon, 6 Apr - Mon, 4 May
Vietnam Airlines Logo
18:55 - 17:10
LHR
-
SAI
16h 15m
1 stop
Vietnam Airlines Logo
19:10 - 17:50
SAI
-
LHR
28h 40m
1 stop
£650Vietnam Airlines
Mon, 1 Jun - Mon, 15 Jun
Vietnam Airlines Logo
19:50 - 17:10
LHR
-
SAI
15h 20m
1 stop
Vietnam Airlines Logo
18:05 - 16:55
SAI
-
LHR
28h 50m
1 stop
£656Vietnam Airlines
Sun, 10 May - Tue, 26 May
Emirates Logo
14:55 - 21:30
STN
-
SAI
24h 35m
2 stops
Emirates Logo
12:55 - 18:45
SAI
-
STN
35h 50m
2 stops
£739Emirates
Wed, 17 Jun - Wed, 24 Jun
Emirates Logo
14:55 - 21:30
STN
-
SAI
24h 35m
2 stops
Emirates Logo
12:55 - 12:55
SAI
-
STN
30h 00m
2 stops
£799Emirates
Fri, 17 Apr - Sun, 26 Apr

Singapore Airlines flights from London to Cambodia

Our best Singapore Airlines deals on London to Cambodia flight tickets
Singapore Airlines
6 Apr
LHR22:05London Heathrow
35h 05m
1 stop
SAI15:10Siem Reap–Angkor Intl
4 May
SAI10:30Siem Reap–Angkor Intl
39h 00m
1 stop
LHR19:30London Heathrow
£749
Singapore Airlines
24 Apr
LHR22:05London Heathrow
29h 35m
1 stop
SAI09:40Siem Reap–Angkor Intl
8 May
SAI16:00Siem Reap–Angkor Intl
29h 45m
1 stop
LHR15:45London Heathrow
£754
Singapore Airlines
21 Mar
LGW09:20London Gatwick
17h 30m
1 stop
SAI09:50Siem Reap–Angkor Intl
10 Apr
SAI16:00Siem Reap–Angkor Intl
20h 55m
1 stop
LGW06:55London Gatwick
£770

SWISS flights from London to Cambodia

Our best SWISS deals on London to Cambodia flight tickets
SWISS
1 Jun
LHR18:40London Heathrow
33h 00m
2 stops
SAI09:40Siem Reap–Angkor Intl
15 Jun
SAI10:30Siem Reap–Angkor Intl
27h 25m
2 stops
LHR07:55London Heathrow
£552
SWISS
17 Jun
LGW09:20London Gatwick
27h 25m
2 stops
SAI18:45Siem Reap–Angkor Intl
24 Jun
SAI16:00Siem Reap–Angkor Intl
22h 25m
2 stops
LGW08:25London Gatwick
£592
SWISS
17 Jun
LCY09:15London City
27h 30m
2 stops
SAI18:45Siem Reap–Angkor Intl
24 Jun
SAI09:40Siem Reap–Angkor Intl
29h 00m
2 stops
LCY08:40London City
£644

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 23 February 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

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 1/6

18:40-09:40

2 stops33h 00m

Siem Reap–Angkor Intl

Mon 15/6

10:30-07:55

2 stops27h 25m

£552

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Wed 17/6

18:40-09:40

2 stops33h 00m

Siem Reap–Angkor Intl

Wed 24/6

16:00-08:40

2 stops22h 40m

£561

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Sun 10/5

09:00-18:45

2 stops27h 45m

Siem Reap–Angkor Intl

Tue 26/5

10:30-08:40

2 stops28h 10m

£567

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 17/6

09:20-18:45

2 stops27h 25m

Siem Reap–Angkor Intl

Wed 24/6

16:00-08:25

2 stops22h 25m

£592

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 17/6

11:35-20:10

3 stops50h 35m

Siem Reap–Angkor Intl

Wed 24/6

21:10-15:10

3 stops48h 00m

£613

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 6/4

18:05-20:10

3 stops44h 05m

Siem Reap–Angkor Intl

Mon 4/5

21:10-06:40

3 stops39h 30m

£614

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Mon 1/6

18:55-17:10

1 stop16h 15m

Siem Reap–Angkor Intl

Mon 15/6

19:10-17:50

1 stop28h 40m

£650

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Sun 10/5

19:50-17:10

1 stop15h 20m

Siem Reap–Angkor Intl

Tue 26/5

18:05-16:55

1 stop28h 50m

£656

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Wed 17/6

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Wed 24/6

12:55-18:45

2 stops35h 50m

£739

LondonSiem Reap

STN - SAI

STNSAI

London Stansted

Fri 17/4

14:55-21:30

2 stops24h 35m

Siem Reap–Angkor Intl

Sun 26/4

12:55-12:55

2 stops30h 00m

£799

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, 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 £518. If you aren’t able to travel during the month of November, then book flights to Cambodia from London during September instead. Flights to Cambodia in September, while not as cheap as those in November, still average around £555.

How far in advance should I book a flight 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 £704 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 £624 on momondo.

Can stopping save me money on London to Cambodia flights?

You could potentially save up to 5% 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

14h 20m

Direct flights

None
The fastest flight from London to Cambodia takes 14h 20m
There are no direct flights from London to Cambodia. There are no popular flight routes 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 £266Free CancellationRating
7.2
139 reviews
Search Air China flights
China SouthernPriceFrom £361Free CancellationRating
7.3
137 reviews
Search China Southern flights
Shenzhen AirlinesPriceFrom £416Free CancellationRating
7.8
25 reviews
Search Shenzhen Airlines flights
China EasternPriceFrom £510Free CancellationRating
7.2
197 reviews
Search China Eastern flights
Etihad AirwaysPriceFrom £513Free CancellationRating
7.3
1,413 reviews
Search Etihad Airways flights
Austrian AirlinesPriceFrom £537Free CancellationRating
7.6
900 reviews
Search Austrian Airlines flights
Singapore AirlinesPriceFrom £560Free CancellationRating
8.2
1,463 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £585Free CancellationRating
7.3
293 reviews
Search Malaysia Airlines flights
LufthansaPriceFrom £596Free CancellationRating
6.8
7,805 reviews
Search Lufthansa flights
Vietnam AirlinesPriceFrom £614Free CancellationRating
7.6
232 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

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1 adult
Wed 25/3
Wed 1/4

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