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Cheap flights from Phnom Penh to London from £239

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to London departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

These are some of the best return flight deals from Phnom Penh to London that have been recently found on momondo from popular airlines, departing in the coming months.
 Logo
00:10 - 23:55PNH-STN
29h 45m3 stops
 Logo
06:00 - 20:50STN-PNH
32h 50m3 stops
Wed, 21 May - Mon, 26 May
China Eastern Logo
12:40 - 06:40PNH-LGW
24h 00m3 stops
China Eastern Logo
11:35 - 17:50LGW-PNH
24h 15m2 stops
£461China Eastern
Find Deal
Mon, 9 Jun - Mon, 16 Jun
China Southern Logo
12:05 - 19:00PNH-LHR
36h 55m1 stop
China Southern Logo
22:10 - 10:40LHR-PNH
30h 30m1 stop
£500China Southern
Find Deal
Mon, 9 Jun - Mon, 16 Jun
China Southern Logo
08:00 - 19:00PNH-LHR
17h 00m1 stop
China Southern Logo
21:00 - 00:10LHR-PNH
21h 10m2 stops
£506China Southern
Find Deal
Thu, 22 May - Mon, 26 May
Shenzhen Airlines Logo
12:15 - 20:00PNH-LHR
37h 45m1 stop
Shenzhen Airlines Logo
22:05 - 11:10LHR-PNH
31h 05m1 stop
£526Shenzhen Airlines
Find Deal
Sat, 21 Jun - Sun, 6 Jul
Shenzhen Airlines Logo
12:15 - 20:00PNH-LHR
37h 45m1 stop
Shenzhen Airlines Logo
22:05 - 11:10LHR-PNH
31h 05m1 stop
£527Shenzhen Airlines
Find Deal
Sat, 17 May - Sat, 7 Jun
Air China Logo
00:20 - 20:30PNH-LHR
26h 10m1 stop
Air China Logo
20:25 - 11:10LHR-PNH
32h 45m2 stops
£562Air China
Find Deal
Sun, 8 Jun - Mon, 16 Jun
Air China Logo
12:15 - 06:55PNH-LGW
24h 40m2 stops
Air China Logo
20:45 - 11:10LGW-PNH
32h 25m2 stops
£580Air China
Find Deal
Sat, 14 Jun - Thu, 10 Jul
Qatar Airways Logo
17:40 - 13:25PNH-LGW
25h 45m1 stop
Qatar Airways Logo
14:55 - 16:15LGW-PNH
19h 20m1 stop
£670Qatar Airways
Find Deal
Mon, 9 Jun - Mon, 16 Jun
Qatar Airways Logo
17:40 - 14:10PNH-LHR
26h 30m2 stops
Qatar Airways Logo
19:25 - 16:15LHR-PNH
38h 50m2 stops
£910Qatar Airways
Find Deal
Sat, 5 Jul - Sat, 26 Jul

Finnair flights from Phnom Penh to London

Our best Finnair deals on Phnom Penh to London flight tickets
Finnair
17 May
PNH19:25Phnom Penh Pochentong
31h 15m
2 stops
LHR20:40London Heathrow
7 Jun
LHR10:20London Heathrow
40h 15m
2 stops
PNH08:35Phnom Penh Pochentong
Finnair
14 Jun
PNH19:25Phnom Penh Pochentong
32h 45m
2 stops
LHR22:10London Heathrow
10 Jul
LHR07:30London Heathrow
19h 05m
2 stops
PNH08:35Phnom Penh Pochentong
Finnair
1 Jul
PNH19:25Phnom Penh Pochentong
31h 15m
2 stops
LHR20:40London Heathrow
11 Jul
LHR07:30London Heathrow
19h 05m
2 stops
PNH08:35Phnom Penh Pochentong

Shenzhen Airlines flights from Phnom Penh to London

Our best Shenzhen Airlines deals on Phnom Penh to London flight tickets
Shenzhen Airlines
21 Jun
PNH12:15Phnom Penh Pochentong
37h 45m
1 stop
LHR20:00London Heathrow
6 Jul
LHR22:05London Heathrow
31h 05m
1 stop
PNH11:10Phnom Penh Pochentong
Shenzhen Airlines
17 May
PNH12:15Phnom Penh Pochentong
37h 45m
1 stop
LHR20:00London Heathrow
7 Jun
LHR22:05London Heathrow
31h 05m
1 stop
PNH11:10Phnom Penh Pochentong
Shenzhen Airlines
5 Jul
PNH12:15Phnom Penh Pochentong
37h 45m
1 stop
LHR20:00London Heathrow
26 Jul
LHR22:05London Heathrow
31h 05m
1 stop
PNH11:10Phnom Penh Pochentong

See travel insights to London from

How to get the cheapest flight ticket from Phnom Penh to London

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 London?

The cheapest month to fly to London from Phnom Penh is in August. Flight prices, which tend to average around £565, are often lower during this time because this is during the off-season. The month of November is another great option to travel to London, with average flight prices from Phnom Penh averaging around £570.

What is the cheapest day to depart on your flight to London?

Our data shows that Sunday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £575. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Phnom Penh to London for around £847.

What is the cheapest time of day to depart on your flight to London?

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £0. Flights in the evening are often more expensive, with an average ticket price of £742.

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

You are more likely to see cheaper flights to London from Phnom Penh when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to London for around £774 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Phnom Penh for as low as £602 on momondo.

How have Phnom Penh to London flight prices changed over time?

As of April 2025, prices for Phnom Penh to London flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Phnom Penh to London

Are you open to changing your travel dates? Check out the ideal times to fly from Phnom Penh to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Phnom Penh to London (PNH to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Phnom Penh to London

Best price found

£239

Fastest flight time

15h 30m

Direct flights

None

Airports in London

4 airports
The best one-way flight to London from Phnom Penh in the past 72 hours is £239. The best return flight deal from Phnom Penh to London found on momondo in the last 72 hours is £459.
The fastest flight from Phnom Penh to London takes 15h 30m
There are no direct flights from Phnom Penh to London. Popular non-direct routes for this connection are Phnom Penh Pochentong Airport - London Gatwick Airport, Phnom Penh Pochentong Airport - London Stansted Airport and Phnom Penh Pochentong Airport - London Heathrow Airport.
There are 4 airports near London: London City (LCY), London Heathrow (LHR), London Stansted (STN), London Gatwick (LGW)

  • How far is Phnom Penh Pochentong to London by plane?

    London is 6219.7 mi away from Phnom Penh Pochentong. Typically, this will take 15h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Phnom Penh Pochentong Airport to London?

    Prices for flights from Phnom Penh Pochentong Airport to London were last updated today.

  • How many operators does momondo search for flights from Phnom Penh Pochentong Airport to London?

  • How old do you have to be to fly from Phnom Penh Pochentong Airport to London?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Phnom Penh Pochentong Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents you'll need for your trip to London may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Phnom Penh to London?


Best airlines flying from Phnom Penh to London

Compare and see reviews for airlines that fly from Phnom Penh to London with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £483Free CancellationRating
7.5
96 reviews
Search China Southern flights

Travelling to a place near London?

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Southend-on-Sea
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Dartford
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Hounslow
Colchester
Guildford
Worthing
Winchester
Crawley
Chichester
Croydon

Why use momondo?

Why should I use momondo to find a flight deal from Phnom Penh to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Phnom Penh to London for you.

Can I find flights from Phnom Penh to London with flexible booking policies on momondo?

momondo does allow users to show only those flights to London from Phnom Penh which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Phnom Penh to London?

momondo helps you find the best flight between Phnom Penh and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Phnom Penh to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Phnom Penh to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London