£384 Find Cheap Flights from London to Cambodia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Cambodia departing on 17/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Book Cheap London to Cambodia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Cambodia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from London to Cambodia

Fri, 12 Jun - Tue, 23 Jun
Etihad Airways Logo
21:45 - 09:00
LHR
-
SAI
29h 15m
2 stops
Etihad Airways Logo
15:10 - 12:45
SAI
-
LHR
27h 35m
2 stops
£605Etihad Airways
Fri, 12 Jun - Sat, 27 Jun
Multiple Airlines Logo
16:15 - 18:55
LHR
-
SAI
20h 40m
2 stops
Multiple Airlines Logo
09:40 - 07:30
SAI
-
LHR
27h 50m
2 stops
£672Multiple Airlines
Tue, 15 Sep - Tue, 29 Sep
Multiple Airlines Logo
21:20 - 20:10
LHR
-
SAI
64h 50m
3 stops
Multiple Airlines Logo
12:55 - 06:55
SAI
-
LHR
24h 00m
2 stops
£706Multiple Airlines
Tue, 26 May - Wed, 10 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
£715SWISS
Tue, 15 Sep - Tue, 29 Sep
Multiple Airlines Logo
07:25 - 18:55
LHR
-
SAI
29h 30m
2 stops
Multiple Airlines Logo
09:40 - 21:45
SAI
-
LHR
18h 05m
2 stops
£716Multiple Airlines
Sun, 14 Jun - Mon, 6 Jul
SWISS Logo
09:05 - 18:55
LGW
-
SAI
27h 50m
2 stops
SWISS Logo
09:40 - 08:25
SAI
-
LGW
28h 45m
2 stops
£716SWISS
Fri, 25 Sep - Tue, 29 Sep
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
£716Austrian Airlines
Sun, 14 Jun - Mon, 6 Jul
SWISS Logo
06:00 - 18:55
LHR
-
SAI
30h 55m
2 stops
SWISS Logo
09:40 - 07:55
SAI
-
LHR
28h 15m
2 stops
£717SWISS
Mon, 15 Jun - Tue, 7 Jul
Emirates Logo
14:55 - 21:30
STN
-
SAI
24h 35m
2 stops
Emirates Logo
23:50 - 18:45
SAI
-
STN
24h 55m
2 stops
£731Emirates
Sun, 14 Jun - Tue, 7 Jul
Emirates Logo
23:55 - 21:30
LGW
-
SAI
39h 35m
2 stops
Emirates Logo
23:50 - 19:45
SAI
-
LGW
25h 55m
2 stops
£737Emirates
Booking Insights

KAYAK's insights & trends for London to Cambodia flights

Get data-powered insights and trends into flights from London to Cambodia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from London to Cambodia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Cambodia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Cambodia is October, when tickets cost £267 (return) on average. On the other hand, the most expensive months are February and December, when the average cost of return tickets is £1,108 and £1,082 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Cambodia, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from London to Cambodia, you should book around 3 weeks before departure, which saves you about 26% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know - Cheap tickets from London to Cambodia

Low seasonAugust
Cheapest flight£384
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly (26% more expensive on average)
Flight from London to Siem Reap

FAQs - booking Cambodia flights

  • Which airport should I depart from in London if I’m travelling to Cambodia?

    Passengers should select their departure airport depending on where you’re staying in London and if you have a preference for a particular airline. Flights departing from London Heathrow Airport may only have one stopover and therefore have a shorter travel time. You can also travel to Cambodia from London City Airport, London Gatwick and London Stansted.

  • Where can I stop over on the way from London to Cambodia?

    If you’re travelling from London to Cambodia, you can enjoy a stopover at one of the cities along the way to break up the long flight. Singapore Airlines offers flights with a stopover at Changi Airport in Singapore. British Airways flights stop over in Bangkok, while passengers travelling on Etihad Airways may need to change planes in Abu Dhabi, Phuket City and Bangkok.

  • Do British nationals need a visa to travel to Cambodia?

    British passport holders are required to obtain a visa before entering Cambodia. If you are travelling as a tourist for less than 30 days, you can apply for a tourist visa online or in person at the Royal Embassy of Cambodia in London. You may need to provide a valid passport, a recent passport photo, visa fee and proof of travel insurance.

  • Are there any Meet & Greet services on arrival in Cambodia?

    If you’re travelling to Cambodia on business or with a group, Meet & Greet services can be organised in advance so you can enjoy a seamless experience once you arrive at Phnom Penh International Airport. A customer service officer will meet you at the arrivals gate and accompany you through immigration clearance and customs and can take care of luggage collection, lounge stays and private transfers to your hotel.

  • How does KAYAK find such low prices on flights from London to Cambodia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Cambodia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Cambodia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Cambodia is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Cambodia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London to Cambodia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Cambodia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Cambodia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding a cheap flight from London to Cambodia

  • Start your holiday in style with a VIP experience in one of the premium airline lounges in London’s airports and enjoy freshly prepared meals and snacks, bar service and comfortable seating areas.
  • Before you depart, treat yourself to a massage or beauty treatment at Be Relax Heathrow Airport, which offers signature massages, reflexology treatments, manicures, pedicures and revitalising facials.
  • If you are looking for alternatives to airline food, you can pre-order meals from selected restaurants at Heathrow and have an in-flight picnic. A range of healthy options are available as well as snacks and sweet treats for your long flight.
  • For passengers who require additional assistance at Heathrow Airport, there are accessible toilets and changing places, induction loops and dedicated quiet areas. Accessible transport is available between terminals.
  • Shopping is easy at Heathrow Airport, with the Reserve & Collect service that allows you to browse online and reserve products before you fly, as well as Collect on Return, which holds your purchases at the airport ready for collection upon your return.
  • If you are feeling hungry when you arrive at Phnom Penh International Airport, there are a range of restaurants and cafés in the arrivals area serving local cuisine, fast food and international favourites.
  • From Phnom Penh International Airport, the most common ways to travel to your hotel or accommodation are via economical city bus, convenient tuk-tuk or air-conditioned taxi.

Reviews of the top 5 airlines flying from London to Cambodia

 
Need help choosing which airline to fly with from London to Cambodia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.2
Singapore AirlinesOverall score based on 1505 reviews
8.0Comfort
8.0Entertainment
8.6Crew
8.3Boarding
7.8Food
Airline reviews

Really great service throughout and the food was really nice. I can highly recommend thank you very much.

10.0 ExcellentPeter, Apr 2026
LHR - BKI
Read more Singapore Airlines reviews

Really great service throughout and the food was really nice. I can highly recommend thank you very much.

Fast and efficient flight. Wifi worked well. Food selection could have been better

A little more room from the reclining seat in the front of me.

Overall the airline tried to give excellent service. The wheelchair service was bad at SFO. My baggage was also delayed but I thank them for taking the trouble to find it and deliver it to my home.

I wish there was a little more leg room between the seats. The recline was good and seats overall were comfortable. I also didn’t like the 2-4-2 configuration.

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

a completely full flight - felt quite carmped in, despite being on the window seat. Meal served could better. Surely different from pre-covid trips I used to take to and from Bangkok.

The consistency with Singapore Airlines is fantastic. Crew are always brilliant and food delicious in business class

Best service airline. The cabin crew is attentive and friendly. Inflight entertainment system is good

Best airline I think. No problems with anything. Crew were great, no problems with the airline food and entertainment and a smooth flight.

HAVING ANNOUNCEMENTS FOR PEOPLE TO BOARD ACCORDING TO GROUP IS ESSENTIAL N ENSURING N CUTTING OF QUEUES, EXCEPT FOR PRIORITY CLASS PASSENGERS ON A SEPARATE Q

We still get drinks and a snack. Love the gift bags too.

business class is old but still done very well by the team.

Excellent airline. The plane was clean and the staff were very attentive

Good experience although the boarding gate is at the terminal extension hence need to leave lounge to head over earlier.

Thai Royal First is very good. Easy check in , Private room in the first class lounge and escort from ticketing to the plane. Once on board crew was very polite, food was outstanding, and the ride was smooth as silk. Restrooms were especially clean. Great Experience

I'm not interested in improving the airline. Therefore, I won't explain this in more detail. Next time I'll try a different one.

The flight (boarding) was delayed by 40-50 minutes and there was very crowed. They need to improve on the timeliness & boarding process. (They asked passenger to board in groups, but the 2nd group was standing there waiting for 20 minutes!). However, services from the crew was very good, also the food was good as well. I also found the legroom was quite comfortable.

Need to improve on punctuality. My flight was delayed by 1 hour.

Seats were uncomfortable and the vegetarian meal was awful. Some of the entertainment didn't work.

Poor seats. Not helpful crew. The food was awful.overall very very bad experience. Traveled with the family of 5

did not get a notification about seat selection ahead of time. We didn't end up sitting together.

I was denied boarding at the Brisbane airport and it seems like I won’t get any refunds from the airline

In my return flight they couldn’t identify my ticket or boarding pass, I had to go to 3 different counters until I was able to get my boarding pass. The food was on, it was the bear minimum. They didn’t even recognise that I was a Muslim and can’t eat meat, chicken or pork. In one of the trays I believe they served me pork. The staff were very pleasant, but they need to be aware of their surroundings more carefully, one of them stuck her lower belly right into my face! I was shocked and very uncomfortable.

Overall I had good experience with China Southern airline. Nothing to claim. I hoped they could improve the meal quality that is.

Wow very impressed by the quality and attentiveness of service of China Southern. Lived the blankets! Will definitely fly with them again. Despite language barriers, a few attendants know enough English to understand our rudimentary Mandarin and respond to basic questions. Although they don’t explain the beverage and meal service on the website or ticketing documents, they offered regular beverage cart and snacks during the beginning hours and end hours of the long, transoceanic flight. A full meal at the beginning and end of the flight as well, and a midflight small sandwich (dinner roll sized) but we weren’t hungry and didn’t try that one. The expectation is that every sleeps during the middle of the flight. We were on a “redeye” departure from LAX with a morning arrival in China, so I don’t know if this service pattern is the same for other flights. The domestic flight we took from Guangzhou to Harbin offered conventional refreshments and meals like a US flight service. Note that they didn’t offer diet sodas. If you like to stay hydrated, I recommend bringing plenty of your own. It is served in small cups like any other drink. You can ask for a bottle but they’re tiny - about 6 ounces.

China Southern was not the problem. I booked my flight through Kayak and also received a booking reference and alert details regarding departure time and gate numbers… however Kayak NEVER actually booked my flight! We were stranded at the airport without a flight for a long awaited holiday!

The connection between LA and Atlanta was too much stress

Terrible boarding experience,,food is very poor that I I . Never going book this airline again.

The crew were kind, patient and responsive. The service was excellent, even though we travelled the cheapest economy class. We arrived at our destination 40 min early, which for a 15+ hour flight is a great bonus. The boarding seemed a bit "loose", but got us boarded on time, and the plane was off exactly @ 0:30 hrs.

I booked tickets for a family of five and specifically paid extra to select our seats together. We spent nearly $1,000 extra (around $100 per seat) for extra legroom so we could sit near each other. However, despite paying for this, we ended up being separated on the flight. This caused a major issue for our family because my parents do not speak English and rely on me to translate and assist them during the journey. I do not understand why Etihad changed our reserved seats without explanation. I am extremely dissatisfied with this experience. I expect the airline to do better, and I am requesting a full refund for the seat selection fees we paid.

1 hour delay meant missed my connecting flight and 1st day of holiday

Business class ticket should include lounge access and seat selection. The food quality and varieties should be more. It was surpirise that no dessert was offered.

Dear Team, I purchased a full travel package that included 2 checked bags through you and JustFly. However, when I arrived at the airport, my ticket showed 0 checked bags. Since I was traveling internationally to India with 2 bags, It was a $200 per bag at the counter, which was extremely disappointing. For an international trip, why would I ever choose a no‑bag option for only $20–$30 less? This seems like an error in the booking process, and I am requesting clarification and a resolution. I have called JustFly and on phone for 1 hr :53 min and they couldn't help till I show some kind of proof etc which isn't possible but besides that love your service and using it for years !

Early arrival. Good boarding. Deplaning this flight is very slow both coming and going. Baggage arrived quickly for Pearson

The crew could have been more friendly and could have offered to make the beds. Also, Ethiad should have more vegetarian food options.

We have paid premium price for a business class Cabinet and we have received the old 777 with the following apart business class that is not to standard. It was very disappointing and it’s a very bad reputation for a premium airline company. This aeroplane should be the commission from being as a business class. We will pass this knowledge to our colleagues because the quality of business class in Etihad is not consistent and it is a lucky dip that sometimes you’re getting a good aeroplane and sometimes you’re getting their 30 years old aeroplane. The crew of the aeroplane have apologise and said that they hate this aeroplane and they have complained about it multiple times as well. Obviously Etihad is putting the economy in front of the Customer Experience. For the future we will not take this risk anymore and will fly with established company like emirates.

There was not any issues with the Etihad Airways. Staff was excellent and I love the variety of movies and games that they provided.

Etihad Check In counter/Station manager in Heathrow was bothering and not helpful at all. They are rude and not customer oriented

I missed my flight ,staff unhelpful, they sat and watched me wait ,gangway door closed, English was a problem no announcement I was on time now I missed my month vacation ,lost 1400 bucks no refund I'm sick to my stomach

The meals were not the greatest and lacking of appetite but everything else was spot on

Overall, excellent: check-in, boarding, service, and food. The Business Class seating is a little less private and spacious than the world's premier airlines, but still very good for a long haul flight.

On time. Friendly and helpful flight attendants. The plane was clean. Having a wine available would have been nice.

Your staff was exceptional. Could teach the other airlines-rules on etiquette, and service. Excellent landings on flights, carried out by your pilots. Only complaint is long delay on return flight in Beijing, onto Vancouver.

Worst than I expected, crew was not attentive, meal was as disgusting , they didn’t even drink selections as they would to other passengers. I felt discriminated

cannot get seat information for LAX to IAH when check in in XI,AN

UA is ok. But check in was a very bad experience

I hate that you cannot check in online and when you are at the airport, there aren't any aisle seats left. Also, they could work a little on subtitles for their movies (not everyone is a native English speaker).

Nothing to complain of, the only reason I am not giving better marks is that I am used to flying with ANA and they are the top.

It's terrible that we can't do online check in because we didn't buy the tickets directly from Air china. It was not explained until I contacted Chatdeal and we could not sit together.

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

Cabin class types available on flights to Cambodia

Cabin classes available on flights to Cambodia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.