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Cheap flights from Phnom Penh to London Heathrow Airport from £253

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 Heathrow Airport departing on 25/2. 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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Find the cheapest flights from Phnom Penh to London

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.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Phnom Penh to London.

Cheap last-minute flights

Planning a quick getaway from Phnom Penh to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without stopovers.

Cheap bus & train deals from Phnom Penh to London

Find recent round-trip train or bus tickets from Phnom Penh to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
08:00 - 19:05PNH-LHR
17h 05m1 stop
22:10 - 14:30LHR-PNH
34h 20m1 stop
£575China Southern
Find Deal
Tue, 13 May - Sat, 24 May
01:25 - 17:30PNH-LHR
23h 05m1 stop
21:10 - 11:15LHR-PNH
31h 05m1 stop
Sat, 1 Feb - Wed, 12 Feb
00:10 - 18:40PNH-LHR
24h 30m1 stop
21:20 - 23:15LHR-PNH
19h 55m1 stop
£647China Eastern
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Mon, 12 May - Sat, 24 May
11:10 - 16:10PNH-LHR
36h 00m2 stops
21:10 - 18:50LHR-PNH
38h 40m1 stop
Wed, 15 Jan - Mon, 20 Jan
00:15 - 13:55PNH-LHR
20h 40m1 stop
21:00 - 23:15LHR-PNH
19h 15m1 stop
£683China Eastern
Find Deal
Tue, 14 Jan - Mon, 20 Jan
00:15 - 13:55PNH-LHR
20h 40m1 stop
17:50 - 10:00LHR-PNH
33h 10m2 stops
£692China Eastern
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Tue, 14 Jan - Mon, 20 Jan
19:05 - 15:00PNH-LHR
26h 55m1 stop
17:50 - 17:45LHR-PNH
16h 55m1 stop
£805Cathay Pacific
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Sat, 1 Feb - Sat, 8 Feb
21:30 - 13:50PNH-LHR
23h 20m2 stops
15:50 - 18:25LHR-PNH
19h 35m2 stops
£827Emirates
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Thu, 16 Jan - Sat, 25 Jan
21:30 - 18:20PNH-LHR
27h 50m2 stops
15:50 - 18:25LHR-PNH
19h 35m2 stops
£856Emirates
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Fri, 17 Jan - Fri, 24 Jan
11:55 - 18:15PNH-LHR
37h 20m1 stop
21:30 - 14:35LHR-PNH
34h 05m2 stops
£1,076China Southern
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Thu, 2 Jan - Wed, 8 Jan
12:15 - 19:10PNH-LHR
37h 55m1 stop
£253Shenzhen Airlines
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Tue, 25 Feb
08:00 - 18:15PNH-LHR
17h 15m1 stop
£256China Southern
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Mon, 24 Feb
00:25 - 17:50PNH-LHR
24h 25m1 stop
£259Air China
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Mon, 24 Feb
00:15 - 17:30PNH-LHR
24h 15m1 stop
£266China Eastern
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Sun, 23 Feb
00:20 - 20:30PNH-LHR
26h 10m1 stop
£270Air China
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Fri, 2 May
11:05 - 13:55PNH-LHR
33h 50m2 stops
£276China Eastern
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Mon, 24 Feb
09:45 - 19:35PNH-LHR
16h 50m1 stop
£338Thai Airways
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Mon, 23 Dec
18:20 - 12:25PNH-LHR
24h 05m2 stops
Sat, 3 May
21:30 - 06:45PNH-LHR
40h 15m2 stops
Sat, 18 Jan
20:55 - 19:35PNH-LHR
29h 40m1 stop
£425Thai Airways
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Sat, 18 Jan
11:55 - 17:55PNH-LHR
37h 00m2 stops
22:00 - 14:35LHR-PNH
33h 35m1 stop
£465China Southern
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Sun, 22 Dec - Tue, 14 Jan
08:00 - 14:00PNH-LHR
37h 00m2 stops
22:00 - 23:30LHR-PNH
18h 30m1 stop
£504China Southern
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Sat, 21 Dec - Thu, 9 Jan
11:05 - 13:55PNH-LHR
33h 50m2 stops
21:10 - 11:15LHR-PNH
31h 05m1 stop
Mon, 23 Dec - Sun, 12 Jan
11:05 - 13:55PNH-LHR
33h 50m2 stops
21:10 - 11:15LHR-PNH
31h 05m1 stop
Mon, 23 Dec - Fri, 10 Jan
00:15 - 17:30PNH-LHR
24h 15m1 stop
21:00 - 23:15LHR-PNH
19h 15m1 stop
£649China Eastern
Find Deal
Sat, 21 Dec - Thu, 9 Jan
11:05 - 17:30PNH-LHR
37h 25m2 stops
21:00 - 10:00LHR-PNH
30h 00m2 stops
£660China Eastern
Find Deal
Sat, 21 Dec - Sun, 12 Jan
19:05 - 07:00PNH-LHR
18h 55m1 stop
11:00 - 10:25LHR-PNH
16h 25m1 stop
£722Cathay Pacific
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Sun, 22 Dec - Sun, 12 Jan
19:05 - 07:00PNH-LHR
18h 55m1 stop
22:05 - 17:45LHR-PNH
36h 40m1 stop
£735Cathay Pacific
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Sun, 22 Dec - Mon, 13 Jan
21:30 - 07:10PNH-LHR
40h 40m2 stops
20:20 - 18:25LHR-PNH
39h 05m2 stops
£779Emirates
Find Deal
Mon, 23 Dec - Mon, 13 Jan
21:30 - 07:10PNH-LHR
40h 40m2 stops
20:20 - 18:25LHR-PNH
39h 05m2 stops
£809Emirates
Find Deal
Mon, 23 Dec - Wed, 8 Jan

Cathay Pacific flights from Phnom Penh to London Heathrow Airport

Our best Cathay Pacific deals on Phnom Penh to London Heathrow Airport flight tickets
Cathay Pacific
22 Dec
PNH19:05Phnom Penh Pochentong
18h 55m
1 stop
LHR07:00London Heathrow
12 Jan
LHR11:00London Heathrow
16h 25m
1 stop
PNH10:25Phnom Penh Pochentong
Cathay Pacific
22 Dec
PNH19:05Phnom Penh Pochentong
18h 55m
1 stop
LHR07:00London Heathrow
13 Jan
LHR22:05London Heathrow
36h 40m
1 stop
PNH17:45Phnom Penh Pochentong
Cathay Pacific
22 Dec
PNH19:05Phnom Penh Pochentong
18h 55m
1 stop
LHR07:00London Heathrow
11 Jan
LHR17:50London Heathrow
16h 55m
1 stop
PNH17:45Phnom Penh Pochentong

Emirates flights from Phnom Penh to London Heathrow Airport

Our best Emirates deals on Phnom Penh to London Heathrow Airport flight tickets
Emirates
23 Dec
PNH21:30Phnom Penh Pochentong
40h 40m
2 stops
LHR07:10London Heathrow
14 Jan
LHR19:00London Heathrow
40h 25m
2 stops
PNH18:25Phnom Penh Pochentong
Emirates
23 Dec
PNH21:30Phnom Penh Pochentong
40h 40m
2 stops
LHR07:10London Heathrow
9 Jan
LHR09:10London Heathrow
26h 15m
2 stops
PNH18:25Phnom Penh Pochentong
Emirates
23 Dec
PNH21:30Phnom Penh Pochentong
25h 40m
2 stops
LHR16:10London Heathrow
11 Jan
LHR19:00London Heathrow
40h 25m
2 stops
PNH18:25Phnom Penh Pochentong

See travel insights to London from

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

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 Heathrow Airport?

In general, March is the cheapest month to fly from Phnom Penh to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £622. The month of May is another great option to travel to London Heathrow Airport, with average flight prices from Phnom Penh averaging around £623.

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

On average, the least expensive day to fly to London Heathrow Airport from Phnom Penh is on a Monday. momondo users have found tickets for Monday departures for as low as £0. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £865.

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

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Phnom Penh to London Heathrow Airport at midday for as low as £0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £1,088 on average. Flights to London Heathrow Airport from Phnom Penh in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

Most flyers found that booking tickets 21 days in advance of their planned departure date is the best time to get cheap flights to London Heathrow Airport. During this timeframe, flight prices are around £811. However, in the past 72 hours, people saw flights from Phnom Penh for as low as £411.

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

You could potentially save up to 4% on your flight if you consider stops on a Phnom Penh to London Heathrow Airport flight.

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

As of December 2024, prices for Phnom Penh to London Heathrow Airport flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Phnom Penh to London Heathrow Airport

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

Cheap Phnom Penh to London Heathrow Airport (PNH to LHR) flight deals and tips

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

Best price found

£253

Fastest flight time

16h 50m

Direct flights

None
The best one-way flight to London Heathrow Airport from Phnom Penh in the past 72 hours is £253. The best return flight deal from Phnom Penh to London Heathrow Airport found on momondo in the last 72 hours is £575.
The fastest flight from Phnom Penh to London Heathrow Airport takes 16h 50m
There are no direct flights from Phnom Penh to London Heathrow Airport. Popular non-direct route for this connection is Phnom Penh Pochentong Airport - London Heathrow Airport.

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

    Phnom Penh Pochentong and London Heathrow are 6233.8 mi apart from one another. Flights usually cover this in 17h 05m, depending on flying conditions and air traffic around both airports.

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

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

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

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

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

    The travel and health documents you'll need for your trip to London Heathrow Airport 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 Heathrow Airport. 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 Heathrow Airport?


Best airlines flying from Phnom Penh to London Heathrow Airport

Compare and see reviews for airlines that fly from Phnom Penh to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £463Free CancellationRating
7.4
92 reviews
Search China Southern flights
Thai AirwaysPriceFrom £928Free CancellationRating
7.7
357 reviews
Search Thai Airways flights

Why use momondo?

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

It is quick and easy to find Phnom Penh to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits 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 provides multiple filters to help you find the best flight to London from Phnom Penh. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to London from Phnom Penh are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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