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Cheap flights from Phnom Penh to London from $322

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 6/8. 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 round-trip flights

These are some of the best round-trip flight deals from Phnom Penh to London that have been recently found on momondo from popular airlines, departing in the coming months.
 Logo
12:10 am - 11:55 pmPNH-STN
29h 45m3 stops
 Logo
6:00 am - 8:50 pmSTN-PNH
32h 50m3 stops
Wed, May 21 - Mon, May 26
China Eastern Logo
12:40 pm - 6:40 pmPNH-LHR
36h 00m2 stops
China Eastern Logo
9:20 pm - 11:35 amLHR-PNH
32h 15m3 stops
$648China Eastern
Find Deal
Thu, May 22 - Mon, May 26
China Southern Logo
8:00 am - 7:00 pmPNH-LHR
17h 00m1 stop
China Southern Logo
9:00 pm - 12:10 amLHR-PNH
21h 10m2 stops
$679China Southern
Find Deal
Thu, May 22 - Mon, May 26
China Southern Logo
8:00 am - 7:00 pmPNH-LHR
17h 00m1 stop
China Southern Logo
10:10 pm - 10:40 amLHR-PNH
30h 30m1 stop
$683China Southern
Find Deal
Thu, May 22 - Mon, May 26
China Southern Logo
8:00 am - 7:00 pmPNH-LHR
17h 00m1 stop
China Southern Logo
10:10 pm - 10:40 amLHR-PNH
30h 30m1 stop
$720China Southern
Find Deal
Tue, May 13 - Thu, Jun 19
Emirates Logo
8:50 pm - 6:45 pmPNH-STN
27h 55m2 stops
Emirates Logo
2:55 pm - 4:35 pmSTN-PNH
19h 40m2 stops
$957Emirates
Find Deal
Thu, Jun 12 - Thu, Jun 19
Emirates Logo
8:50 pm - 4:10 pmPNH-LHR
25h 20m2 stops
Emirates Logo
8:40 pm - 4:35 pmLHR-PNH
37h 55m2 stops
$1,013Emirates
Find Deal
Fri, Aug 1 - Sun, Sep 7
Thai Airways Logo
9:15 pm - 7:15 amPNH-LHR
16h 00m1 stop
Thai Airways Logo
9:25 pm - 7:55 pmLHR-PNH
16h 30m1 stop
$1,148Thai Airways
Find Deal
Mon, Jul 28 - Thu, Aug 7
Singapore Airlines Logo
9:35 am - 6:25 amPNH-LGW
26h 50m1 stop
Singapore Airlines Logo
9:20 am - 1:50 pmLGW-PNH
21h 30m1 stop
$1,307Singapore Airlines
Find Deal
Tue, Oct 7 - Tue, Dec 9
Singapore Airlines Logo
2:05 pm - 6:25 amPNH-LGW
22h 20m1 stop
Singapore Airlines Logo
10:15 am - 1:10 pmLGW-PNH
20h 55m1 stop
$1,468Singapore Airlines
Find Deal
Tue, Jul 1 - Fri, Jul 11

China Southern flights from Phnom Penh to London

Our best China Southern deals on Phnom Penh to London flight tickets
China Southern
May 22
PNH8:00 amPhnom Penh Pochentong
17h 00m
1 stop
LHR7:00 pmLondon Heathrow
May 26
LHR9:00 pmLondon Heathrow
21h 10m
2 stops
PNH12:10 amPhnom Penh Pochentong
China Southern
May 22
PNH8:00 amPhnom Penh Pochentong
17h 00m
1 stop
LHR7:00 pmLondon Heathrow
May 26
LHR10:10 pmLondon Heathrow
30h 30m
1 stop
PNH10:40 amPhnom Penh Pochentong
China Southern
May 13
PNH8:00 amPhnom Penh Pochentong
17h 00m
1 stop
LHR7:00 pmLondon Heathrow
Jun 19
LHR10:10 pmLondon Heathrow
30h 30m
1 stop
PNH10:40 amPhnom Penh Pochentong

Emirates flights from Phnom Penh to London

Our best Emirates deals on Phnom Penh to London flight tickets
Emirates
Jun 12
PNH8:50 pmPhnom Penh Pochentong
27h 55m
2 stops
STN6:45 pmLondon Stansted
Jun 19
STN2:55 pmLondon Stansted
19h 40m
2 stops
PNH4:35 pmPhnom Penh Pochentong
Emirates
Aug 1
PNH8:50 pmPhnom Penh Pochentong
25h 20m
2 stops
LHR4:10 pmLondon Heathrow
Sep 7
LHR8:40 pmLondon Heathrow
37h 55m
2 stops
PNH4:35 pmPhnom Penh Pochentong
Emirates
Oct 7
PNH8:50 pmPhnom Penh Pochentong
22h 05m
2 stops
STN12:55 pmLondon Stansted
Dec 8
STN2:05 pmLondon Stansted
19h 30m
2 stops
PNH4:35 pmPhnom 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 $757, 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 $764.

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

The cheapest day to depart from Phnom Penh to London is on a Saturday. Travelers who choose to depart for London on a Saturday will often find tickets for as low as $837. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,043. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

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

Flying to London from Phnom Penh in the evening is the least expensive time of day to depart. momondo users have found prices as low as $787 when looking at flights departing in the evening. Flights to London are more costly in the afternoon, with an average ticket price of $1,145. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $1,038 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 $807 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 round-trip 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

$322

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 $322. The best round-trip flight deal from Phnom Penh to London found on momondo in the last 72 hours is $615.
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. 16h 00m is a normal flight duration for this route.

  • 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 are updated daily.

  • 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 for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phnom Penh Pochentong Airport to London.

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

    The necessary travel and health documents for your London 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 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 EasternPriceFrom $633Free CancellationRating
7.1
148 reviews
Search China Eastern flights
China SouthernPriceFrom $663Free CancellationRating
7.5
96 reviews
Search China Southern flights
Air ChinaPriceFrom $706Free CancellationRating
7.2
88 reviews
Search Air China flights
Singapore AirlinesPriceFrom $921Free CancellationRating
8.1
1,292 reviews
Search Singapore Airlines flights
EmiratesPriceFrom $929Free CancellationRating
8.0
3,215 reviews
Search Emirates flights
British AirwaysPriceFrom $958Free CancellationRating
6.6
6,834 reviews
Search British Airways flights
Qatar AirwaysPriceFrom $993Free CancellationRating
7.4
3,563 reviews
Search Qatar Airways flights
Malaysia AirlinesPriceFrom $999Free CancellationRating
7.3
254 reviews
Search Malaysia Airlines flights
Thai AirwaysPriceFrom $1,103Free CancellationRating
7.7
325 reviews
Search Thai Airways flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Croydon
Luton
Guildford
Slough
Hayes
Dartford
Dover
Stansted
Ilford
Milton Keynes
Canterbury
Colchester
Horley
Wembley
Chelmsford
Richmond
Crawley
Hook

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?

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

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

Once all potential Phnom Penh to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes momondo offers price alerts on flights to London from Phnom Penh. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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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