Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Phnom Penh from £241

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Phnom Penh departing on 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from London to Phnom Penh

Cheap return flights

KAYAK's recommended return flight deals from the most popular airlines that fly from London to Phnom Penh.
Air China Logo
12:35 - 23:05LGW-PNH
28h 30m1 stop
Air China Logo
00:20 - 06:35PNH-LGW
36h 15m1 stop
£409Air China
Find Deal
Wed, 4 Jun - Tue, 10 Jun
Air China Logo
20:25 - 23:05LHR-PNH
20h 40m1 stop
Air China Logo
00:20 - 17:45PNH-LHR
23h 25m1 stop
£413Air China
Find Deal
Wed, 4 Jun - Tue, 10 Jun
China Southern Logo
21:00 - 00:10LHR-PNH
21h 10m2 stops
China Southern Logo
08:00 - 19:00PNH-LHR
17h 00m1 stop
£430China Southern
Find Deal
Tue, 10 Jun - Tue, 17 Jun
China Southern Logo
22:10 - 10:40LHR-PNH
30h 30m1 stop
China Southern Logo
12:05 - 19:00PNH-LHR
36h 55m1 stop
£438China Southern
Find Deal
Mon, 12 May - Mon, 19 May
China Eastern Logo
11:35 - 23:15LGW-PNH
29h 40m1 stop
China Eastern Logo
00:10 - 15:00PNH-LGW
20h 50m1 stop
£519China Eastern
Find Deal
Tue, 10 Jun - Mon, 16 Jun
China Eastern Logo
11:35 - 23:15LGW-PNH
29h 40m1 stop
China Eastern Logo
12:40 - 15:00PNH-LGW
32h 20m2 stops
£521China Eastern
Find Deal
Tue, 10 Jun - Tue, 17 Jun
Malaysia Airlines Logo
11:00 - 17:25LHR-PNH
24h 25m1 stop
Malaysia Airlines Logo
18:20 - 05:55PNH-LHR
17h 35m1 stop
£593Malaysia Airlines
Find Deal
Tue, 10 Jun - Tue, 17 Jun
Malaysia Airlines Logo
11:00 - 17:25LHR-PNH
24h 25m1 stop
Malaysia Airlines Logo
18:20 - 05:55PNH-LHR
17h 35m1 stop
£595Malaysia Airlines
Find Deal
Tue, 10 Jun - Tue, 17 Jun
Singapore Airlines Logo
10:15 - 17:40LGW-PNH
25h 25m1 stop
Singapore Airlines Logo
09:35 - 06:25PNH-LGW
26h 50m1 stop
£664Singapore Airlines
Find Deal
Wed, 17 Sep - Wed, 1 Oct
Singapore Airlines Logo
10:15 - 17:40LGW-PNH
25h 25m1 stop
Singapore Airlines Logo
14:05 - 06:25PNH-LGW
22h 20m1 stop
£696Singapore Airlines
Find Deal
Wed, 17 Sep - Wed, 1 Oct

Air China flights from London to Phnom Penh

Our best Air China deals on London to Phnom Penh flight tickets
Air China
4 Jun
LGW12:35London Gatwick
28h 30m
1 stop
PNH23:05Phnom Penh Pochentong
10 Jun
PNH00:20Phnom Penh Pochentong
36h 15m
1 stop
LGW06:35London Gatwick
Air China
4 Jun
LHR20:25London Heathrow
20h 40m
1 stop
PNH23:05Phnom Penh Pochentong
10 Jun
PNH00:20Phnom Penh Pochentong
23h 25m
1 stop
LHR17:45London Heathrow
Air China
4 Jun
LHR20:25London Heathrow
20h 40m
1 stop
PNH23:05Phnom Penh Pochentong
12 Jun
PNH00:20Phnom Penh Pochentong
26h 10m
1 stop
LHR20:30London Heathrow

China Southern flights from London to Phnom Penh

Our best China Southern deals on London to Phnom Penh flight tickets
China Southern
10 Jun
LHR21:00London Heathrow
21h 10m
2 stops
PNH00:10Phnom Penh Pochentong
17 Jun
PNH08:00Phnom Penh Pochentong
17h 00m
1 stop
LHR19:00London Heathrow
China Southern
12 May
LHR22:10London Heathrow
30h 30m
1 stop
PNH10:40Phnom Penh Pochentong
19 May
PNH12:05Phnom Penh Pochentong
36h 55m
1 stop
LHR19:00London Heathrow
China Southern
10 Jun
LHR21:00London Heathrow
21h 10m
2 stops
PNH00:10Phnom Penh Pochentong
17 Jun
PNH08:00Phnom Penh Pochentong
17h 00m
1 stop
LHR19:00London Heathrow

See travel insights to Phnom Penh from

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

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 London and Phnom Penh?

What is the cheapest month to fly to Phnom Penh?

The month of March is another great option to travel to Phnom Penh, with average flight prices from London averaging around £570.

What is the cheapest day to depart on your flight to Phnom Penh?

Our data shows that Monday is the least expensive day to fly to Phnom Penh. Tickets to fly out on this day can be as low as £624. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Phnom Penh on Friday is £726.

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

Our data shows that the cheapest London to Phnom Penh flights are usually those with departure times in the evening. Our users have found flights to Phnom Penh in the evening for as low as £532. At midday is when there is more demand to fly to Phnom Penh, so prices are often more expensive at around £819 per ticket.

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

You are more likely to see cheaper flights to Phnom Penh from London when booking 2 weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around £723 when searching 2 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from London for as low as £621 on momondo.

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

As of April 2025, prices for London to Phnom Penh flights are approximately 1% cheaper when compared to flights at the same time last year.

When to book flights from London to Phnom Penh

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

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

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

Best price found

£241

Fastest flight time

15h 25m

Direct flights

None

Airports in Phnom Penh

1 airport
The best one-way flight to Phnom Penh from London in the past 72 hours is £241. The best return flight deal from London to Phnom Penh found on momondo in the last 72 hours is £409.
The fastest flight from London to Phnom Penh takes 15h 25m
There are no direct flights from London to Phnom Penh. Popular non-direct routes for this connection are London Gatwick Airport - Phnom Penh Pochentong Airport, London Stansted Airport - Phnom Penh Pochentong Airport and London Luton Airport - Phnom Penh Pochentong Airport.
There is 1 airport near Phnom Penh: Phnom Penh Pochentong (PNH)

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

    London and Phnom Penh Pochentong are 6219.7 mi apart from one another. By plane, this route typically takes 15h 25m.

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

    Prices for flights from London to Phnom Penh Pochentong Airport are refreshed on a daily basis.

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

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

    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 London to Phnom Penh Pochentong Airport.

  • What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

    The necessary travel and health documents for your Phnom Penh Pochentong Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from London to Phnom Penh

Compare and see reviews for airlines that fly from London to Phnom Penh with momondo
Airline
Rating
Free Cancellation
Price
Air ChinaPriceFrom £309Free CancellationRating
7.2
87 reviews
Search Air China flights
Shenzhen AirlinesPriceFrom £386Free CancellationRating
6.1
11 reviews
Search Shenzhen Airlines flights
China SouthernPriceFrom £405Free CancellationRating
7.5
94 reviews
Search China Southern flights
China EasternPriceFrom £577Free CancellationRating
7.1
148 reviews
Search China Eastern flights
Singapore AirlinesPriceFrom £610Free CancellationRating
8.1
1,290 reviews
Search Singapore Airlines flights
Malaysia AirlinesPriceFrom £652Free CancellationRating
7.3
254 reviews
Search Malaysia Airlines flights
British AirwaysPriceFrom £653Free CancellationRating
6.6
6,820 reviews
Search British Airways flights
Cathay PacificPriceFrom £665Free CancellationRating
7.5
851 reviews
Search Cathay Pacific flights
Qatar AirwaysPriceFrom £666Free CancellationRating
7.4
3,560 reviews
Search Qatar Airways flights
Vietnam AirlinesPriceFrom £681Free CancellationRating
7.6
194 reviews
Search Vietnam Airlines flights

Why use momondo?

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

Finding the right flight to Phnom Penh from London is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Phnom Penh quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Phnom Penh from London with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Phnom Penh.

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

Yes. momondo can track prices for London to Phnom Penh 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.


An easier way to manage your Phnom Penh trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Thu 1/5
Thu 8/5

Find better results for your trip to Cambodia

Airports servicing Cambodia