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Cheap flights from London to Cambodia from £321

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — KTI
1 Aug — 8 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Cambodia

Enter your travel dates to find the best prices.

Cheapest flights from London to Cambodia
Explore the most affordable flight options available from London to Cambodia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2026.

Thu 3/919:30
LHR
-
SAI
2 stops17h 25m
Multiple Airlines
Tue 29/909:40
SAI
-
LHR
2 stops18h 05m
Multiple Airlines
Deal found 28/6£591
Wed 2/909:25
LGW
-
SAI
2 stops27h 30m
SWISS
Thu 1/1009:40
SAI
-
LGW
2 stops28h 45m
SWISS
Deal found 28/6£593
Wed 2/913:50
LHR
-
SAI
2 stops23h 05m
SWISS
Thu 1/1009:40
SAI
-
LHR
2 stops28h 15m
SWISS
Deal found 28/6£594
Sat 31/1018:40
LHR
-
SAI
2 stops32h 10m
SWISS
Mon 9/1109:55
SAI
-
LHR
2 stops18h 45m
SWISS
Deal found 30/6£602
Wed 30/918:40
LHR
-
SAI
2 stops33h 00m
SWISS
Mon 5/1009:40
SAI
-
LHR
2 stops18h 05m
SWISS
Deal found 1/7£603
Wed 30/918:40
LHR
-
SAI
2 stops33h 00m
SWISS
Tue 27/1016:45
SAI
-
LHR
2 stops22h 20m
SWISS
Deal found 27/6£608
Tue 1/909:25
LGW
-
SAI
2 stops27h 30m
SWISS
Thu 1/1009:40
SAI
-
LGW
2 stops28h 45m
SWISS
Deal found 28/6£608
Tue 1/908:45
LHR
-
SAI
2 stops28h 10m
SWISS
Tue 29/909:40
SAI
-
LHR
2 stops31h 40m
SWISS
Deal found 28/6£609
Wed 2/909:15
LCY
-
SAI
2 stops27h 40m
SWISS
Tue 29/909:40
SAI
-
LCY
2 stops29h 00m
SWISS
Deal found 28/6£609
Sat 31/1018:40
LHR
-
SAI
2 stops32h 10m
SWISS
Sat 7/1116:45
SAI
-
LHR
2 stops25h 30m
SWISS
Deal found 30/6£609
Fri 30/1018:40
LHR
-
SAI
2 stops32h 10m
SWISS
Sun 8/1109:55
SAI
-
LHR
2 stops18h 45m
SWISS
Deal found 30/6£617
Tue 1/909:15
LCY
-
SAI
2 stops27h 40m
SWISS
Thu 1/1009:40
SAI
-
LCY
2 stops29h 00m
SWISS
Deal found 28/6£623

Find flight deals from London to Cambodia

Keep the following information in mind while searching for London to Cambodia flight deals. Data was last updated 2 July 2026.

Round-trip from

£591

One-way from

£321

Popular in

July

Cheapest in

November

Average price

£938
SWISS
  • SWISS
  • 3/9-29/9
  • 4 total stops
  • 35h 30m total
  • London to Cambodia
Search Deals
30/9
  • 30/9
  • 3 total stops
  • 35h 45m total
  • London to Cambodia
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£87 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights 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, Cheapflights users made 858,174 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

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Thu 3/9

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Thu 1/10

09:40-08:40

2 stops29h 00m

£609

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Thu 26/11

22:00-14:00

3 stops47h 00m

£624

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Mon 31/8

22:00-20:10

2 stops40h 10m

Siem Reap–Angkor Intl

Fri 2/10

21:10-19:15

2 stops52h 05m

£624

LondonSiem Reap

LCY - SAI

LCYSAI

London City

Wed 2/9

13:10-18:55

2 stops23h 45m

Siem Reap–Angkor Intl

Wed 30/9

09:40-08:40

2 stops29h 00m

£648

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Wed 4/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 21/11

22:00-06:30

2 stops39h 30m

£674

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 6/11

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Sat 21/11

22:00-14:00

2 stops47h 00m

£674

LondonSiem Reap

LGW - SAI

LGWSAI

London Gatwick

Fri 30/10

10:30-21:00

3 stops27h 30m

Siem Reap–Angkor Intl

Thu 5/11

22:00-06:30

3 stops39h 30m

£674

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Tue 1/9

16:10-09:00

3 stops34h 50m

Siem Reap–Angkor Intl

Tue 22/9

12:55-14:35

3 stops31h 40m

£677

LondonSiem Reap

LTN - SAI

LTNSAI

London Luton

Wed 30/9

15:15-09:00

3 stops35h 45m

Siem Reap–Angkor Intl

Mon 5/10

18:05-12:55

2 stops24h 50m

£680

LondonSiem Reap

LHR - SAI

LHRSAI

London Heathrow

Sat 7/11

18:40-09:50

2 stops32h 10m

Siem Reap–Angkor Intl

Sat 21/11

09:55-08:05

2 stops29h 10m

£682

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 60 resultsSorted by cheapest first
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2
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6

Best time to book a flight from London to Cambodia

Have a flexible travel schedule? Discover the best time to fly to Cambodia from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Cambodia

What is the cheapest month to book a flight from London to Cambodia?

Currently, February is the cheapest month in which you can book a flight from London to Cambodia (average of £189). Flying from London to Cambodia in December is currently the most expensive (average of £1,428). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How often are flights from London to Cambodia delayed?

About 0% of weekly flights between London and Cambodia have experienced delays in the past year, with the average delay time being 0 minutes.

What is the most punctual flight time for London to Cambodia flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Thursday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

How far ahead should I book a flight from London to Cambodia?

The price you pay for your flight from London to Cambodia may vary depending on when you book. For the best chance of a lower fare, look to book 63 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

Reviews of airlines servicing Cambodia

Get insights into the airlines that provide service to Cambodia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cambodia. Reviews last updated 2 July 2026.
Check out reviews from past customers who have flown with Singapore Airlines,Thai Airways, andChina Southern from London to Cambodia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello
Singapore Airlines
8.2
Very Good
1,557 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello
Thai Airways
7.9
Good
408 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello
China Southern
7.5
Good
155 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello
Etihad Airways
7.3
Good
1,471 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello
Air China
7.3
Good
157 reviews
Singapore Airlines
8.2
Very Good
1,557 reviews
Check prices

Crew

8.6

Comfort

8.0

Entertainment

8.1

Boarding

8.3

Overall

8.2

Food

7.8

Reviews

1 / 20
8.0
Excellent

Matt,Jun 2026

SIN - CMB

Crew were flat or busy but so awesome and polite. There was one guy, prob the senior crew member, looked and acted way too serious and too important to smile and say hello

Related info for your journey

Find useful and relevant information for your journey from London to Cambodia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Cambodia?

    A quick flight from London to Cambodia can take about 23h 45m. SWISS provides one of the quickest options available for as low as £609. London and Cambodia are separated by a distance of 6084 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the cheapest airlines to fly from London to Cambodia one-way?

    £243 is the cheapest one-way deal found within the past few days, from Etihad Airways. You may also be able to find cheap deals on China Southern and Singapore Airlines, with prices starting from £292 and £394, respectively.

  • What are the most popular routes from London to Cambodia?

    The most popular route from London to Cambodia is London Heathrow - Siem Reap–Angkor Intl. You may also consider London Gatwick - Siem Reap–Angkor Intl or London Stansted - Siem Reap–Angkor Intl.

  • Can I find deals for flights from London to Cambodia that include hotel bookings?

    Yes. In addition to deals on London to Cambodia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Cambodia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Cambodia.

  • Can I find deals for business class flights from London to Cambodia?

    Yes. Cheapflights offers flight deals from London to Cambodia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London to Cambodia?

    Currently, February is the cheapest month in which you can book a flight from London to Cambodia (average of £189). Flying from London to Cambodia in December is currently the most expensive (average of £1,428). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Cambodia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from London to Cambodia

Discover the top 10 airlines that operate flights from London to Cambodia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 2 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air ChinaCheapest£271Average£394FlexibilityNo cancel feeOn-time67%
Search Air China flights
Shenzhen AirlinesCheapest£338Average£615FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£475Average£539FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Etihad AirwaysCheapest£516Average£692FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China EasternCheapest£546Average£642FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Austrian AirlinesCheapest£546Average£694FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Malaysia AirlinesCheapest£595Average£799FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
Singapore AirlinesCheapest£607Average£881FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Vietnam AirlinesCheapest£625Average£825FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights
Cathay PacificCheapest£710Average£862FlexibilityNo cancel feeOn-time72%
Search Cathay Pacific flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Cambodia?

Cheapflights makes it easy to find London to Cambodia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to Cambodia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to Cambodia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to Cambodia with no change fees?

Certainly. Search results for flights to Cambodia from London shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from London to Cambodia become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Cambodia from London today and book when prices fit your budget.

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