LON - PNH

£239 Find Cheap Flights from London to Phnom Penh

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 Phnom Penh departing on 8/5. 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.
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These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Phnom Penh.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Phnom Penh.
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Cheap Flight Deals from London to Phnom Penh (LON-PNH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Phnom Penh 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.

Recent return flight deals from London to Phnom Penh

KAYAK's recommended return flight deals from the most popular airlines that fly from London to Phnom Penh.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Air China Logo
12:35 - 23:05LGW-PNH
28h 30m1 stop
Air China Logo
00:20 - 06:35PNH-LGW
36h 15m1 stop
£388Air China
Find Deal
Wed, 4 Jun - Tue, 10 Jun
Air China Logo
12:35 - 23:05LGW-PNH
28h 30m1 stop
Air China Logo
00:20 - 06:35PNH-LGW
36h 15m1 stop
£392Air China
Find Deal
Wed, 4 Jun - Tue, 10 Jun
China Southern Logo
22:10 - 10:40LHR-PNH
30h 30m1 stop
China Southern Logo
08:00 - 19:00PNH-LHR
17h 00m1 stop
£443China Southern
Find Deal
Mon, 19 May - Mon, 26 May
China Southern Logo
22:10 - 00:10LHR-PNH
20h 00m1 stop
China Southern Logo
15:35 - 19:00PNH-LHR
33h 25m1 stop
£482China Southern
Find Deal
Thu, 22 May - Thu, 29 May
China Eastern Logo
11:35 - 23:15LGW-PNH
29h 40m1 stop
China Eastern Logo
00:10 - 15:00PNH-LGW
20h 50m1 stop
£528China Eastern
Find Deal
Thu, 8 May - Wed, 28 May
China Eastern Logo
11:35 - 11:35LGW-PNH
42h 00m2 stops
China Eastern Logo
00:10 - 15:00PNH-LGW
20h 50m1 stop
£533China Eastern
Find Deal
Thu, 8 May - Wed, 28 May
Malaysia Airlines Logo
11:00 - 17:25LHR-PNH
24h 25m1 stop
Malaysia Airlines Logo
18:20 - 05:55PNH-LHR
17h 35m1 stop
£598Malaysia Airlines
Find Deal
Thu, 8 May - Sun, 25 May
Malaysia Airlines Logo
11:00 - 17:25LHR-PNH
24h 25m1 stop
Malaysia Airlines Logo
11:10 - 16:35PNH-LHR
35h 25m1 stop
£601Malaysia Airlines
Find Deal
Thu, 19 Jun - Sat, 2 Aug
Singapore Airlines Logo
11:25 - 17:40LHR-PNH
24h 15m1 stop
Singapore Airlines Logo
18:55 - 15:45PNH-LHR
26h 50m1 stop
£645Singapore Airlines
Find Deal
Wed, 3 Sep - Sun, 21 Sep
Singapore Airlines Logo
10:15 - 17:40LGW-PNH
25h 25m1 stop
Singapore Airlines Logo
14:05 - 06:25PNH-LGW
22h 20m1 stop
£646Singapore Airlines
Find Deal
Sun, 7 Sep - Sun, 28 Sep

KAYAK's insights & trends for London to Phnom Penh flights

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

Planning a trip from London to Phnom Penh? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from London to Phnom Penh?

The average price of all round-trip flights from London to Phnom Penh clicked on KAYAK for each day over the last 12 months.
For London to Phnom Penh, Monday is the cheapest day to fly on average and Friday is the most expensive. Flying from Phnom Penh back to London, the best deals are generally found on Thursday, with Saturday being the most expensive.

What is the cheapest month to fly from London to Phnom Penh?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Phnom Penh, 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 Phnom Penh is November, where tickets cost £529 (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is £844 and £824 respectively.

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

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 Phnom Penh, 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 the flight from London to Phnom Penh, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 2 weeks before departure.

Good to know - Cheap tickets from London to Phnom Penh

Low season

June

High season

December

Cheapest flight

£239
Best time to beat the crowds (8% less expensive on average)
Most popular time to fly (21% more expensive on average)
Flight from London Gatwick Airport to Phnom Penh

When to book flights from London to Phnom Penh

Are your dates flexible? Find out the best times to travel from London to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from London to Phnom Penh

  • Where can I purchase Cambodian currency at Phnom Penh Airport?

    Cambodia Asia Bank (CAB) manages a foreign exchange kiosk near the Lost and Found office in the Arrivals Hall of the International Terminal, where you can purchase Cambodian banknotes for your trip. CAB, along with a host of other banks, provides several ATMs in the Arrivals Hall of the International Terminal for your convenience.

  • Can I hire a car at Phnom Penh Airport?

    Phnom Penh Airport does not have a car hire centre so you’ll have to depend on public transport, taxis or a hotel shuttle transfer to your destination. Royal Railway Cambodia has an express shuttle train from the airport to Phnom Penh Railway Station in the city. Travel time is about 30min with fares starting at 10,400 KHR (1.85 GBP) per person one-way. Otherwise, the No.3 City Bus or Express Bus can get you downtown.

  • Are there any accommodations at Phnom Penh Airport?

    No. Phnom Penh Airport does not have any onsite hotels, but there are a few in the area where you can find a place to stay. Dara Airport Hotel and Bali Resort & Apartment provide airport shuttle service at a surcharge, but Tian Yi International Hotel offers the service for free.

  • What are some cities/towns within reach from Phnom Penh Airport?

    Phnom Penh Airport is the largest in the capital and the principal international gateway to Cambodia. There are several provinces within striking distance from the airport, such as Pursat (115 miles northwest), Tbong Kmoum (86 miles northeast), and Takeo (50 miles south).

  • How can I lower my carbon emissions when flying to Phnom Penh from London?

    To lower your carbon emissions when flying from London to Phnom Penh, you can consider several strategies. Choose airlines that prioritise fuel efficiency and carbon reduction initiatives, like British Airways and Singapore Airlines. Packing lighter and reducing excess baggage can also contribute to lower fuel consumption.

  • What family-friendly activities are available at London Gatwick Airport (LGW)?

    London Gatwick Airport (LGW) offers various family-friendly activities to keep young travellers entertained. Kids can enjoy the play areas specifically designed for them where they can burn off some energy before their flight. Additionally, the airport features a variety of family-friendly restaurants and cafes that cater to different tastes and dietary needs.

  • How far is the Royal Palace from Phnom Penh Airport (PNH)?

    The Royal Palace is located in the heart of Phnom Penh, Cambodia, approximately 6.8 miles from Phnom Penh International Airport (PNH). After arriving from London, it takes around 30 to 40 minutes by car to reach the Royal Palace, depending on traffic conditions. Visitors can immerse themselves in this iconic landmark's rich history and stunning architecture which serves as a cultural symbol of Cambodia's monarchy.

  • What disability services are available at London Heathrow Airport (LHR)?

    London Heathrow Airport (LHR) offers various disability services to ensure a smooth and accessible travel experience. These services include dedicated assistance for passengers with reduced mobility, accessible toilets and designated parking spaces. The airport also provides specialised support through trained staff, such as wheelchair assistance and escort services. 

  • What is the cheapest flight from London to Phnom Penh?

    In the last 3 days, the lowest price for a flight from London to Phnom Penh was £318 for a one-way ticket and £516 for a return.

  • Which airports will I be using when flying from London to Phnom Penh?

    On your way to Phnom Penh, you’ll fly out from one of these London airports: London Gatwick, London Heathrow, London Luton, or London Stansted. You’ll be landing at Phnom Penh Pochentong.

  • Which aircraft models fly most regularly from London to Phnom Penh?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from London to Phnom Penh?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between London and Phnom Penh, with Star Alliance being the most commonly used for this route.

  • What is the most popular stopover when flying to Phnom Penh from London?

    Guangzhou is the most popular stopover city among KAYAK users travelling from London to Phnom Penh.

  • Which is the best airline for flights from London to Phnom Penh, Singapore Airlines or Emirates?

    The two airlines most popular with KAYAK users for flights from London to Phnom Penh are Singapore Airlines and Emirates. With an average price for the route of £721 and an overall rating of 8.1, Singapore Airlines is the most popular choice. Emirates is also a great choice for the route, with an average price of £790 and an overall rating of 8.0.

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

    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 Phnom Penh.

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

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

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

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

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

    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 to Phnom Penh from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from London to Phnom Penh

  • Despite the lack of direct flights from London metro airports to Phnom Penh International Airport (PNH), formerly Pochentong International Airport, you can still enjoy one-stop service on Singapore Airlines and British Airways from London Heathrow Airport (LHR) and flights onboard JetStar Asia and Turkish Airlines out of London Gatwick Airport (LGW).
  • Gatwick Express and Heathrow Express trains remove the hassle from your airport commute with fast and efficient service to/from Central London. Gatwick Express trains from London Victoria Station depart about every 15min to London Gatwick Airport, while Heathrow Express trains offer a similar frequency of departures from London Paddington Station to London Heathrow Airport. Fare prices range from 19.90 GBP to 37 GBP for one-way or return tickets when you purchase them online.
  • Plaza Premium Lounge and Aspire Lounges at London Heathrow Airport offer a relaxing atmosphere with complimentary food and drinks before taking off on your trip abroad. Plaza Premium Lounges are located in the Departures Hall at Terminals 2 and 5, while Aspire Lounge has one location at Lounge D near Gate 9, Departures Hall at Terminal 5.
  • London Gatwick Airport’s North and South Terminals are separate buildings about a mile apart, but they are connected via an inter-terminal shuttle, which departs from the South Terminal Train Station. Journey time to North Terminal is about 2min, with shuttles running 24/7.
  • Whether you’re flying from London Heathrow or London Gatwick, download their respective airport apps to keep abreast of current flight information, including gate and terminal numbers and arrival times. You can also take advantage of special discounts on airport services, such as parking or Fast Track, in addition to offers by participating retail shops and restaurants.
  • As a British citizen flying from London to Phnom Penh, Cambodia, you must obtain a visa before your trip. Cambodia requires visitors to have a valid visa to enter the country which can be obtained either through an e-visa application or upon arrival at the airport. It's advisable to check the latest visa requirements prior to travelling.
  • London Gatwick Airport (LGW) offers several business lounges for travellers, including the No.1 Lounge and Club Aspire Lounge. These lounges offer a comfortable and quiet space to relax, work and enjoy complimentary food and drinks.
See more tips

Top 5 airlines serving from London to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying from London to Phnom Penh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to Phnom Penh? 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.
8.1
Singapore AirlinesOverall score based on 1290 reviews
8.0Entertainment
7.9Comfort
8.6Crew
8.2Boarding
7.7Food
Airline reviews

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

10.0 ExcellentBeverly, Apr 2025MNL - SIN
Read more Singapore Airlines reviews

We were not given option for meals since they ran out of the other option but good thing the remaining options tasted great.

Horrendous. We upgraded and they took the money but cancelled one of our tickets. The recline action didn’t work on the seats for the flight from Singapore to London, pre booked meals but they seemed to have disappeared as well.. Phone customer service was horrendous. Took 5 phone calls and no fix. Craig at the airport was the only one who seemed to be able to get the ticket back.

Crew and service was excellent, but passengers should be offered a welcome drink before take off which did not happen. Food was very good. Unfortunately the lie-flat bed in business class was one of the most uncomfortable I have experienced. The configuration forces you to sleep with your legs at an angle instead of in a straight line, plus there is very little padding on the bed so it wasn't possible to sleep for more than 2-3 hours on an 18 hour flight. For what the airlines charges for a business class ticket their hard product leaves a lot to be desired.

It was very good experience on board to Sydney with SQ.

Everything was great keep up the good work 😁, can't ask for more.

Flight from SFO did not include entertainment as it was not working the entire duration of the flight. Was informed that there would be a $350 voucher for the inconvenience. Uncertain how the voucher will be provided.

The food options and quality could use some more excitement and variety.

I was a member of Krisflyer for ten years, but my last flight to Tokyo was a disaster. I had to stand in line for four hours before check-in because they were late opening the counter, and there were more than 50 people behind me. The plane was extremely small, and the food could have been better. When I dropped off my stroller before boarding the plane, I expected to receive it upon exiting for my transfer. However, they returned the stroller to the checked baggage because they said I was late getting off the plane. Of course, I was late; they assigned me a seat at the back of the aircraft, and I was traveling with a baby! The worst part was when I arrived in Jakarta. They damaged my stroller and refused to approve my claim, so I had to pay for stroller rental because of the damage they caused. I don’t know what happened to Singapore Airlines, but I felt like I was flying with a budget airline.

Crews were very caring and polite. Washroom was surprisingly clean. Overall experience was good , only food choices was very limited. Thanks

On time boarding I would like to see ground hostess to help transit customers to direct them to the right terminal and boarding gate. Last night, all the transit customers on SQ484 arriving Singapore had to merry go round to look for terminal and boarding gate to board SQ128 transit to KL Malaysia. We went to Terminal 3 taking the Skytrain to T3 and back to T3 to get out to look for different Skytrain to T2. On arrival t2, we had to go round to ask which boarding gate to KL. We only had 5 minutes to make to the boarding time at 6:55pm but we already spent more than 30 minutes running around to find the boarding gate. We were late at the boarding gate.

They used Thai Smile plane, which is a smaller model and used to service only domestic flights; hence, the plane is small and quite compact. No entertainment on the flight. While boarding was delayed, it was done in a quick manner.

I give EVA 5 stars in every category. I enjoy this airline and it's great team of employees. I always highly recommend EVA to friends and family and everyone.

The flight was delayed going out of the gate at BKK that made it a difficult challenge to get through immigration transfer at tapei and make it to my departure on time. This appears to be a recurring issue. The flight crew and cabin crew were excellent. The food was very nice.

The boarding efficiency was good. A couple of the flight attendants did not seem in the best of moods. Overall it was a good experience.

The setting configuration of the aircraft stinks. Nobody should pay business class fares and be so uncomfortable. The design of facing fellow passengers is a brilliant nincompoop.

Entertainment is limited with a relatively old catalogue. Wi-Fi never works and the cabin and lavatory had evidence of a lot of scuff marks and temporary repairs. Nothing unsafe, but a bit tatty in places.

Delayed flight in Singapore caused the transfer at Bangkok to be very stressful. Fortunately, no elderly were in this trip, else it will not be possible to catch the connecting flight. There were also several occasions throughout the flight journey where some of the passengers were not wearing their seat belts despite several remainders from the stewardess.

USB charging port was not working at my seat 48K.

I enjoy flying with Thai Airways, however their B788 business class configuration is quite dated. Additionally , while the service is always friendly and efficient, I’m getting tired of the same “usual suspects” when it comes to food choices. Since it was a lunchtime flight, what about some gourmet sandwiches or some type of salad dish for the main course? The entertainment options are also quite limited and this is not unique to TG, so much so that given the short duration of the flight I ended up not bothering with any entertainment. Finally, despite signs around the cabin advising wifi available, I was unable to con-net and in fact I’ve never been able to connect on any TG flight over the last year or so - what’s the go here??

Always liked Thai Airways but in the past they have been very expensive, not being a millionaire just yet, I will use cheaper airlines. Bangkok to London £370 11 hours 45 mins. Old plane but ok. Lovely ladies on board, very polite. Food was ok. Will always use them if the price is right.

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.

The airport didn‘t give me the ticket. I called customer service to ask for a refund but they kept giving me a perfunctory response and refused to refund me.

The flight was delayed hours and most flights from CS are always delayed. Plane was efficient and got us home but not the best food and no entertainment system at all.

Not good - chair back could not move back for premium economy. Not worth the price

The back of the chair - premium economy could not move back - not worth the price

It was okay. Boarding the staff made you feel rushed like we were late or something

It was great. The staff were so nice and helpful the food was great and they always made sure I was okay. As a foreigner I was worried about the language barrier but it was absolutely no issues. I highly recommend

Vast improvement needed in customer service. I couldn’t get the drink of my choice during both meals (i.e. sparking water and Diet Coke). I had used plastic cups falling onto me from the tray. No eye contact when they thank you on the way out signalling an insincere thank you.

Jia yung was the flight attendant that made this a miserable flight.

The flight isn’t great, as the plane has faulty with light and noise. It blinks and make noise for 8hrs non stop! Causing health and sensory issues! Causing Hazard matter to all 3 babies that on bassinet seats. This matters affected 12 passengers and the most horrible flight I ever experience. Have been flying with MAS for more 30yrs and this is the worst! Very disappointed

AC not working, just slowly blowing room temperature air. Long taxi time does not help as well. Sweating all over the whole trip.

Did not take as cancelled 3 time so took another airline

It was a 2-hour flight so they didn't have much time for serving food. There was some turbulence so they could not serve hot coffee or tea for the safety reason. Good service, good tasting food, nice plane, a little bit of delay.

The IFE is quite unconvenient if using our own device. Not all passenger brought their own earphone/headphone.

Ok, but legspace on MH0127 from Kul to Per was too small. It was not possible to tilt my seat which I don't understand because the seat in front of my could do it. So I didn't rest on the flight. Also, the crew was probably understaffed because it took very long time to take trash after the meal. Everything very different from the flight with Malaysian Airlines from London to KL.

Service / food has to be much better. Staff were not very attentive to requests. Requested for a second serve of coke and got a weird look back from the host! Was also told they don’t have extra water bottles when I requested for one before sleep! Dinner time food was very minimum and average.

An overnight Doha to KL. Great sleep, good service and tasty food in business class

Communication between the captain/crew and the passengers needs to be improved.

Food and service are good. Bathroom was lack of lotions and cleaning. That should be improved.

Food & service very good next I will pick up again

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced. Also, a cabin bag allows only 5kg!

Chinese flight attendants didn't speak english well. They didn't care enough to remember that I (east asian who isn't Chinese) wasn't Chinese and spoke English. Announcement in english on board was poor and I find it very difficult to understand what was announced.

Everything was not satisfactory - the flight was delayed, staffs were ok but they didn't speak English well. I am from east Asia (not Chinese) and they didn't care enough to remember that I wasn't Chinese but persistently spoke chinese to me. The flight announcement in english wasn't clear to understand.

I wish I had been able to choose a vegetarian meal. Crew friendly and helpful. Seat was ok. All quite efficient and pleasant. Would recommend for inner China travel for sure.

The flight is not bad, but the Business Lounge is not big enough for the quantity of people they accept and there is a limited options for food and beverages.

It was simply bad and on top of that my luggage hasn't been delivered until now. They can't even localize it which is just unacceptable when they are supposed to scan the bar code they put when we check in

We bought premium Economy, thinking it would be more comfortable, but the seat is so narrow ,that my legs and feet are swollen , I can't wear shoes !

Everything you need to know for your flight from London to Phnom Penh

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