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Cheap flights from Phnom Penh to London from £216

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 25/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Phnom Penh to London

Cheap return flights

China Eastern Logo
00:10 - 15:00PNH-LGW
20h 50m1 stop
China Eastern Logo
18:00 - 23:15LGW-PNH
23h 15m1 stop
£492China Eastern
Find Deal
Tue, 8 Jul - Thu, 21 Aug
China Eastern Logo
12:40 - 15:00PNH-LGW
32h 20m3 stops
China Eastern Logo
11:35 - 23:15LGW-PNH
29h 40m1 stop
£493China Eastern
Find Deal
Wed, 9 Jul - Thu, 21 Aug
China Southern Logo
12:05 - 19:00PNH-LHR
36h 55m1 stop
China Southern Logo
21:30 - 10:50LHR-PNH
30h 20m2 stops
£511China Southern
Find Deal
Fri, 24 Oct - Sun, 26 Oct
Shenzhen Airlines Logo
12:15 - 19:50PNH-LHR
37h 35m1 stop
Shenzhen Airlines Logo
21:10 - 11:15LHR-PNH
31h 05m1 stop
£534Shenzhen Airlines
Find Deal
Fri, 24 Oct - Sun, 26 Oct
China Southern Logo
12:05 - 06:50PNH-LGW
24h 45m1 stop
China Southern Logo
12:00 - 00:10LGW-PNH
30h 10m1 stop
£542China Southern
Find Deal
Sun, 3 Aug - Thu, 4 Sep
 Logo
12:15 - 06:35PNH-LGW
24h 20m2 stops
 Logo
12:35 - 11:10LGW-PNH
40h 35m2 stops
Fri, 27 Jun - Tue, 8 Jul
 Logo
00:20 - 20:30PNH-LHR
26h 10m1 stop
 Logo
20:25 - 11:10LHR-PNH
32h 45m2 stops
Sat, 28 Jun - Sun, 13 Jul
Air China Logo
12:15 - 20:30PNH-LHR
38h 15m2 stops
Air China Logo
20:25 - 11:10LHR-PNH
32h 45m2 stops
£612Air China
Find Deal
Sun, 29 Jun - Sun, 13 Jul
Shenzhen Airlines Logo
12:15 - 19:50PNH-LHR
37h 35m1 stop
Shenzhen Airlines Logo
22:05 - 11:10LHR-PNH
31h 05m1 stop
£701Shenzhen Airlines
Find Deal
Fri, 15 Aug - Mon, 15 Sep
Air China Logo
00:20 - 18:35PNH-LGW
24h 15m1 stop
Air China Logo
12:35 - 11:10LGW-PNH
40h 35m2 stops
£822Air China
Find Deal
Thu, 14 Aug - Sat, 13 Sep

China Southern flights from Phnom Penh to London

Our best China Southern deals on Phnom Penh to London flight tickets
China Southern
24 Oct
PNH12:05Phnom Penh Pochentong
36h 55m
1 stop
LHR19:00London Heathrow
26 Oct
LHR21:30London Heathrow
30h 20m
2 stops
PNH10:50Phnom Penh Pochentong
China Southern
3 Aug
PNH12:05Phnom Penh Pochentong
24h 45m
1 stop
LGW06:50London Gatwick
4 Sept
LGW12:00London Gatwick
30h 10m
1 stop
PNH00:10Phnom Penh Pochentong
China Southern
6 Aug
PNH15:35Phnom Penh Pochentong
21h 30m
1 stop
LGW07:05London Gatwick
5 Sept
LGW12:00London Gatwick
20h 30m
1 stop
PNH14:30Phnom Penh Pochentong

Shenzhen Airlines flights from Phnom Penh to London

Our best Shenzhen Airlines deals on Phnom Penh to London flight tickets
Shenzhen Airlines
24 Oct
PNH12:15Phnom Penh Pochentong
37h 35m
1 stop
LHR19:50London Heathrow
26 Oct
LHR21:10London Heathrow
31h 05m
1 stop
PNH11:15Phnom Penh Pochentong
Shenzhen Airlines
15 Aug
PNH12:15Phnom Penh Pochentong
37h 35m
1 stop
LHR19:50London Heathrow
15 Sept
LHR22:05London Heathrow
31h 05m
1 stop
PNH11:10Phnom Penh Pochentong
Shenzhen Airlines
15 Aug
PNH12:15Phnom Penh Pochentong
37h 35m
1 stop
LHR19:50London Heathrow
14 Sept
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 typical price of a round-trip flight between Phnom Penh and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Phnom Penh is in November. Flight prices, which tend to average around £551, are often lower during this time because this is during the off-season. The month of August is another great option to travel to London, with average flight prices from Phnom Penh averaging around £567.

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 £568. 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 £836.

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

The cheapest time of day to fly to London is in the afternoon when flights can be purchased for as low as £624. Flights in the evening are often more expensive, with an average ticket price of £732.

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 24 weeks ahead of your departure date. In general, you can expect to find flights to London for around £768 when searching 24 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 £599 on momondo.

Can stopping save me money on Phnom Penh to London flights?

You could potentially save up to 11% on your flight if you consider stops on a Phnom Penh to London flight.

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

As of June 2025, prices for Phnom Penh to London flights are approximately 34% 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

£216

Fastest flight time

15h 35m

Direct flights

None

Airports in London

4 airports
The best one-way flight to London from Phnom Penh in the past 72 hours is £216. The best return flight deal from Phnom Penh to London found on momondo in the last 72 hours is £492.
The fastest flight from Phnom Penh to London takes 15h 35m
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 35m 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 £477Free CancellationRating
7.5
99 reviews
Search China Southern flights

Travelling to a place near London?

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Dartford
Hounslow
Colchester
Worthing
Guildford
Winchester
Dover
Crawley
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

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