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PNH - LHR

£243 Find cheap flights from Phnom Penh to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phnom Penh to Heathrow departing on 8/6. 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
0 bags
Thu 6/6
Thu 13/6

Search hundreds of travel sites at once for deals on flights to London Heathrow Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Phnom Penh to London, as well as popular online travel agencies
In the last 7 days, travellers have searched 43,707,506 times on KAYAK, and here's why:

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Cheap flight deals from Phnom Penh to Heathrow (PNH-LHR)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Phnom Penh to Heathrow 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 and deals for you by selecting your travel dates.
Choose your dates
14:00 - 18:40PNH-LHR
34h 40m2 stops
22:05 - 11:10LHR-PNH
31h 05m1 stop
Wed, 5 Jun - Wed, 12 Jun
14:00 - 18:40PNH-LHR
34h 40m2 stops
21:20 - 12:55LHR-PNH
33h 35m3 stops
£559China Eastern
Find Deal
Wed, 5 Jun - Wed, 12 Jun
15:35 - 19:10PNH-LHR
33h 35m1 stop
21:10 - 23:30LHR-PNH
19h 20m1 stop
£602China Southern
Find Deal
Sun, 20 Oct - Thu, 31 Oct
08:00 - 18:05PNH-LHR
40h 05m2 stops
22:10 - 10:40LHR-PNH
30h 30m1 stop
£607China Southern
Find Deal
Mon, 10 Jun - Tue, 18 Jun
00:15 - 17:45PNH-LHR
23h 30m1 stop
22:05 - 11:10LHR-PNH
31h 05m1 stop
Tue, 4 Jun - Wed, 12 Jun
00:15 - 20:30PNH-LHR
26h 15m1 stop
20:25 - 23:25LHR-PNH
20h 00m1 stop
£621Air China
Find Deal
Sat, 19 Oct - Thu, 31 Oct
15:35 - 19:10PNH-LHR
33h 35m1 stop
21:30 - 14:35LHR-PNH
58h 05m2 stops
£628China Southern
Find Deal
Sun, 20 Oct - Thu, 31 Oct
00:10 - 18:40PNH-LHR
24h 30m1 stop
21:20 - 12:55LHR-PNH
33h 35m2 stops
£637China Eastern
Find Deal
Tue, 4 Jun - Wed, 12 Jun
09:40 - 19:10PNH-LHR
15h 30m1 stop
21:25 - 08:50LHR-PNH
29h 25m1 stop
£901Thai Airways
Find Deal
Thu, 26 Sep - Fri, 4 Oct
09:35 - 07:45PNH-LHR
28h 10m1 stop
11:25 - 13:05LHR-PNH
19h 40m1 stop
£916Singapore Airlines
Find Deal
Thu, 26 Sep - Fri, 4 Oct

Flights from Phnom Penh to Heathrow - Travel Insights & Trends

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

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

The average price of all flights from Phnom Penh to London Heathrow Airport clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Phnom Penh to London Heathrow Airport, look for departures on Tuesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from London Heathrow Airport, Monday is the cheapest day to fly and Thursday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Phnom Penh to London Heathrow Airport, 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 Phnom Penh to London Heathrow Airport is May, where tickets cost £626 on average. On the other hand, the most expensive months are January and August, where the average cost of tickets is £1,182 and £1,011 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Phnom Penh to London Heathrow Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Phnom Penh to London Heathrow Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 69 days before departure.

Which airlines provide the cheapest flights from Phnom Penh to London Heathrow Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on China Eastern (£243) and China Southern (£307). The cheapest round-trip tickets were found on China Eastern (£559) and China Southern (£602).

Good to know - Cheap tickets from Phnom Penh to London Heathrow Airport

Low season

August

High season

December

Cheapest flight

£243
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly and prices are also 23% lower on average.
Flight from Phnom Penh to London Heathrow Airport

When to book flights from Phnom Penh to Heathrow

Are your dates flexible? Find out the best times to travel from Phnom Penh to Heathrow 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 Phnom Penh to London Heathrow Airport flights

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

    In the last 3 days, the lowest price for a flight from Phnom Penh to London Heathrow Airport was £305 for a one-way ticket and £701 for a return.

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

    Phnom Penh and London Heathrow Airport are both served by 1 main airport. You will leave Phnom Penh from Phnom Penh Pochentong and will be arriving at London Heathrow.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Phnom Penh to London are Singapore Airlines and Thai Airways. With an average price for the route of £1,197 and an overall rating of 8.2, Singapore Airlines is the most popular choice. Thai Airways is also a great choice for the route, with an average price of £1,102 and an overall rating of 7.9.

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

    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 Phnom Penh to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Phnom Penh 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 Phnom Penh to London Heathrow Airport?

    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 London Heathrow Airport with an airline and back to Phnom Penh with another airline.

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

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

See more FAQs

Top 5 airlines serving from Phnom Penh to Heathrow

 
See real verified KAYAK customer reviews for airlines flying from Phnom Penh to London. 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 Phnom Penh to Heathrow? 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 1464 reviews
8.4Boarding
8.1Comfort
8.2Entertainment
7.8Food
8.7Crew
Airline reviews

Great to have actual hot tastey meal on a flight. Well done

10.0 ExcellentJeff, Apr 2024SIN - MNL
Read more about Singapore Airlines reviews

Great to have actual hot tastey meal on a flight. Well done

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

Cabin Crew always friendly and helpful. Seating cramped - foul smelling from toilets, high risk of disease. Guard personal property such as expensive sunglasses Coffee always awful and cold Meal trays toddler sized Not worth the extra cost to fly SQ - use a budget airline, same if not better experience

Seating cramped; close to toilet, foul smelling and noisy, very unhygienic and disease risk Free and paid Wi-Fi NOT accessible at all - misleading advertising Very expensive sunglasses disappeared from back seat pouch. Coffee disgusting and cold

It seems paying premium economy does not make difference with economy. No priority boarding, not worthy paying extra$$$ for premium economy.

Every thing was fine. Some ild classical Hindi movies should be add

The premium economy seats were not that great. It could have been more premium than economy seats.

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

Transfer within the same terminal and lots of facilities at the airport.

Even though it was a very full flight, the service was still excellent, the plane did not feel too cramped and cabin crew made a sincere effort to help passengers find overhead space for stowing luggage.

The transfer from Domestic and International was a bit confusing but I am easily confused. I did not eat any food, but the food on the other leg was decent. It was nice they turned the lights off on the night flight. The plane was in good shape, but was a little cramped in economy and I am small. They gave me a customs form to fill out and nobody looked at it as I went through customs. Not a bad flight.

My case was missing a wheel on arrival Heathrow and the staff were unhelpful when i tried to get some compensation stating it was not sufficient damage, i only wish that they at some point have to deal with the same situation it put me in, maybe they would change their attitude but overall it was a good flight

We are satisfied with the cabin crew serviceand the quality of meals served.

The aircraft was really old, the staff demotivated and the overall United airline service is horrible

Lunch Food was tasteful and had variety. Seat was comfortable. However, when I was reserving my seats during booking, the seat configuration showed was 3-3-3, but when I boarded it was a 2-4-2 configuration? Also during booking, I had also bought travel insurance together with my TG booking. However there was no confirmation of my purchase from Allianz and TG. After several emails with TG contact, sales, reservation and Allianz was i able to confirm my insurance purchase. When the policy was issued, the birth dates of me and my wife were wrongly stated and I had to go through another round of emails with Allianz to get it corrected. Otherwise any claims would be void! It was indeed not a very good booking experience!

Check in was a disaster. 90 minutes and only 2 economy check in desks open. Had to rush to catch the flight.

I couldnt go on this flight and lost all my money over 1,000 UK Pounds as my visa to Myanmar was not accepted :(

Thai Airways is one of the best airlines in the business. Looking forward to fly again with them.

food poor i said chiken i got pack a pow breakfast lousey .job to explain wot it was ...

After going back and forth with the airline, they never reimbursed the airline tickets. Went around asking multiple people how to get reimbursed and kept getting put back, not satisfied with their customer service.

We bought the business class tickets. The check-in staff and onboard crew were excellent, providing commendable service throughout. However, it was disappointing to find that China Southern Airlines does not have a lounge at SFO. Instead, passengers were provided with a $35 per person food voucher, which fell short of expectations. Furthermore, the quality of the onboard food left much to be desired, marking a significant decline compared to our previous flight experience in 2019, prior to the pandemic.

Wuhan - Dubai. Old plane: 1. Only USB charger. No power outlet to plug in.. 2. Super narrow seat layout 3. Toilet cover consistently fell down and hit my back when sitting on it.. :( 4. Entertainment system touch screen not sensitive, and need to press hard or use finger tips to hit. Crew were very nice and accommodating though.

1. I got very poor check in experience with the counter lady . This is the first airline I ever experienced that no combine check in weight allow . Even we have 4 of us but weight counter by piece . So we wasted lot of time argue and repack . This is super crazy 2. Next I left my Samsung tablet on the plane . And I started to escalate and finally spoke to southern airline lost and found in Malaysia and the amazing answer she give is : system nothing found and please try to call southern airline in china 🧐 . I have been flying many other airlines but this is my first encounterment with such irresponsible airline response and no empathy given to customer . My feeling is nobody bother whether how customer like me feel and I’m just too small for the management to take note .

No red vine, no whiskey, no vodka. No that I wanted all of them at once but still...

During flight, some passengers perform stomping leg exercises which disturb the comfort (I.e. sleep) of other passengers.

No good but was short flight. Both of our China Southern flights were on time. No surprises.

The flight was okay it was the kayak customer service that was poor, I have been trying to change my name on my flight ticket 3 days before my flight and nothing got done about it even tho I messaged so many times and phoned, all I got in return was that is was being processed and still to this day nothing has been done about it, I think it’s disgusting and un needed stress to the trip.

The food was perfect. The boarding process is a bit long. Given the late boarding time, I felt very tired by the time I was seated.

Quality flight from start to finish. Customer service is evidently very important to this company. The staff really exceeded expectations.

Traveling with the Chinese airlines , their service superior to the US Airlines , they are much more friendly and the seats are comfortable , In the past I flew with United , now ,United Airline will become history for me .

Good airline for the price. The Air stewardess are great, nothing is to much trouble. Will use again.

The flight was cancelled without any reason. But the next flight to Shanghai has to be cancelled to pay penalty.

Gatwick London-Shanghai -Bangkok.. Would have liked entertainment screens, but I know these planes are not that new. Cheap flights at the time of booking, Emirates wanted double so you get what you paid for. I would fly again with them, but if Emirates was the same price I would go with them.

Flight was fine, however we were not able to check in online, this adds to travel stress. Luckily check-in at Heathrow was quick, but we did not get the seats we paid extra for. We paid for a window and 2 aisle seats from Shanghai to Tokyo leg, but they changed us to middle seats. Not good :(

Again, I was presented with birthday pastries two times as a celebrated my birthday on both legs of my trip. I will keep flying to China using China Eastern airlines. As they made this trip a special one thank you.

It was my birthday while I was on the flight on China eastern airlines. They celebrated my day by giving me a personalized birthday card and also a very delicious pastry. I was surprised and thankful by the China Eastern crew! The whole staff was kind and professional? My second flight into China and the most memorable! Thank you-

2 hours delay on the 1st plane out of the day!!!!!

A lot of value considering the cheap ticket prices. All meals served were Chinese food. Would fly them again considering the ticket was half the price of any others

Pros: "The flight was smooth. Food was on time . Wine is available for the anxious flyers who can’t sleep."
Cons: "Better softer hand soap , sprays and lotion . Sleep mask"
Cons: "delay of about 1 hour, we almost missed our international flight from beigin"

The flight was delayed for almost 5 hours, but I understand that it was not up to the company, however how they could handle the situation better, they never apologized for that delay, moreover despite passengers being there for 7 hours only thing they did was to give a bowl of instant noodles, afterwards on the plane tiny snacks, people were there starting from lunch time and we’ve arrived to destination at almost midnight

Cons: "Everything was great. Very nice and friendly crew, clean plane, great food. Excellent overall"
Pros: "Friendly crew and helpful staff"
Cons: "Missed connection from PEK to XIY due to delayed arrival and early departure. From XIY to PEK, booked and confirmed 11 departure, changed to 12:30 without notification or explaination. Rushed connections at PEK, pretty much ran from the minute left plan to another terminal, through custom, through all the health check points, security check. Just keep the fights on time and keep the original schedules, not arbitrarily change them."
Pros: "Because of our delay, we flew with Air Thai instead of Air China....much better airline"
Pros: "The crew was accommodating during the flight but spoke very little English and could not help with information on connecting flight."
Cons: "We missed our connecting flight due to a delay and the airline would not let us through because we could have made our second flight...."
Cons: "Connecting though Beijing from Taipei to LAX is not recommended if you can avoid it!"
Pros: "The food was good. It was nice that they supply wet hot towels before each meal. The seat was comfortable with the price I paid for. The rest room is nice and clean and quite spacious. The L’occitane toiletery bag was nice."
Cons: "It would be nice to supply mouthwash in the rest room. It would be nice to have a foot step at the bottom to open the trash container. The comforter is not washed and smells."
Cons: "Even for business class there is no TV screen on each seat. Just one small TV screen on the ceiling for a few rows to share. It would be much better with TV screen on each seat. I was sitting in the first row business class and the air hostess skipped me and didn’t give me a slipper. She gave me a used slipper at the end only without a packet. This is unprofessional to treat a business class passenger"
Cons: "Seats are narrow, leg room limited, and food is minimal."
Pros: "The seats on business were comfy, the service excellent, the movie selection was fair to poor, the food was also fair to good largely because they served a heavy lunch rather than a light breakfast."
Cons: "The food and movie selection."

Book cheap flights from Phnom Penh to London

Cheapest flights to London from Phnom Penh found in 2024

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Phnom Penh to London found on KAYAK in the last 72 hours.
8/6Sat
2 stopsChina Eastern
33h 35mPNH-LHR
£243
13/5Mon
1 stopChina Eastern
24h 30mPNH-LHR
£251
29/10Tue
3 stops
41h 55mPNH-LHR
£296
14/5Tue
1 stopChina Southern
17h 10mPNH-LHR
£307
26/6Wed
1 stopChina Southern
33h 35mPNH-LHR
£308
25/6Tue
1 stopAir China
23h 30mPNH-LHR
£309
14/5Tue
2 stops
28h 15mPNH-LHR
£313
18/6Tue
1 stopAir China
23h 30mPNH-LHR
£315
27/6Thu
1 stopThai Airways
15h 30mPNH-LHR
£458
19/6Wed
1 stopThai Airways
15h 30mPNH-LHR
£478

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Last minute flights from Phnom Penh to Heathrow

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Phnom Penh to London that are departing in the next 10 days.
12/5Sun
multi-stopAir China
25h 45mPNH-LHR
31/5Fri
multi-stopAir China
18h 20mLHR-PNH
£618
12/5Sun
multi-stopChina Eastern
24h 30mPNH-LHR
31/5Fri
multi-stopChina Eastern
33h 35mLHR-PNH
£647
8/5Wed
multi-stop
30h 50mPNH-LHR
9/5Thu
multi-stop
20h 00mLHR-PNH
£794
12/5Sun
multi-stop
25h 45mPNH-LHR
31/5Fri
multi-stop
34h 30mLHR-PNH
£810
8/5Wed
multi-stop
36h 00mPNH-LHR
9/5Thu
multi-stop
20h 00mLHR-PNH
£835
8/5Wed
multi-stopChina Southern
37h 05mPNH-LHR
9/5Thu
multi-stopChina Southern
30h 30mLHR-PNH
£880
12/5Sun
multi-stop
24h 20mPNH-LHR
31/5Fri
multi-stop
30h 15mLHR-PNH
£920
8/5Wed
multi-stopSWISS
25h 15mPNH-LHR
9/5Thu
multi-stopSWISS
32h 00mLHR-PNH
£3,037

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Phnom Penh - London Heathrow Airport Flights

Departure:

Phnom Penh (PNH)Cambodia

Destination:

London Heathrow Airport (LHR)United Kingdom

Return flight deals:

London Heathrow Airport - Phnom Penh

Cabin classes: