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Cheap flights from Phnom Penh to London from $314

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 5/6. 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 round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Phnom Penh to London.
China Eastern Logo
12:10 am - 3:00 pmPNH-LGW
20h 50m1 stop
China Eastern Logo
11:35 am - 11:15 pmLGW-PNH
29h 40m1 stop
$689China Eastern
Find Deal
Mon, May 5 - Sun, May 18
China Eastern Logo
12:40 pm - 6:40 amPNH-LGW
48h 00m2 stops
China Eastern Logo
11:35 am - 11:15 pmLGW-PNH
29h 40m1 stop
$691China Eastern
Find Deal
Sun, Jun 1 - Tue, Jun 10
China Southern Logo
8:00 am - 6:05 pmPNH-LHR
40h 05m2 stops
China Southern Logo
10:10 pm - 10:40 amLHR-PNH
30h 30m1 stop
$711China Southern
Find Deal
Tue, May 13 - Thu, Jun 19
China Southern Logo
3:35 pm - 7:00 pmPNH-LHR
33h 25m1 stop
China Southern Logo
10:10 pm - 12:10 amLHR-PNH
20h 00m1 stop
$920China Southern
Find Deal
Mon, Jun 9 - Tue, Jul 29
Emirates Logo
8:50 pm - 6:45 pmPNH-STN
27h 55m2 stops
Emirates Logo
2:55 pm - 4:35 pmSTN-PNH
19h 40m2 stops
$1,004Emirates
Find Deal
Sun, Sep 14 - Sun, Sep 21
Emirates Logo
8:50 pm - 2:25 pmPNH-LHR
23h 35m2 stops
Emirates Logo
4:50 pm - 4:35 pmLHR-PNH
41h 45m2 stops
$1,007Emirates
Find Deal
Mon, Aug 4 - Mon, Sep 8
Cathay Pacific Logo
6:30 pm - 6:15 pmPNH-LHR
29h 45m1 stop
Cathay Pacific Logo
12:20 pm - 5:20 pmLHR-PNH
23h 00m1 stop
$1,042Cathay Pacific
Find Deal
Mon, Aug 4 - Mon, Sep 8
Cathay Pacific Logo
11:25 am - 3:15 pmPNH-LHR
33h 50m1 stop
Cathay Pacific Logo
6:20 pm - 5:20 pmLHR-PNH
17h 00m1 stop
$1,043Cathay Pacific
Find Deal
Mon, Aug 4 - Mon, Sep 8
Singapore Airlines Logo
6:55 pm - 6:25 amPNH-LGW
17h 30m1 stop
Singapore Airlines Logo
10:15 am - 8:40 amLGW-PNH
16h 25m1 stop
$1,225Singapore Airlines
Find Deal
Sun, Sep 14 - Sun, Sep 21
Singapore Airlines Logo
9:35 am - 6:25 amPNH-LGW
26h 50m1 stop
Singapore Airlines Logo
10:15 am - 5:40 pmLGW-PNH
25h 25m1 stop
$1,259Singapore Airlines
Find Deal
Tue, May 6 - Sun, May 18

China Southern flights from Phnom Penh to London

Our best China Southern deals on Phnom Penh to London flight tickets
China Southern
Apr 8
PNH3:35 pmPhnom Penh Pochentong
30h 40m
2 stops
LHR4:15 pmLondon Heathrow
Apr 22
LHR10:10 pmLondon Heathrow
30h 30m
1 stop
PNH10:40 amPhnom Penh Pochentong
China Southern
May 13
PNH8:00 amPhnom Penh Pochentong
40h 05m
2 stops
LHR6:05 pmLondon Heathrow
Jun 19
LHR10:10 pmLondon Heathrow
30h 30m
1 stop
PNH10:40 amPhnom Penh Pochentong
China Southern
Apr 8
PNH8:00 amPhnom Penh Pochentong
17h 00m
1 stop
LHR7:00 pmLondon Heathrow
Apr 22
LHR10:10 pmLondon Heathrow
20h 00m
1 stop
PNH12:10 amPhnom Penh Pochentong

Finnair flights from Phnom Penh to London

Our best Finnair deals on Phnom Penh to London flight tickets
Finnair
Sep 14
PNH7:25 pmPhnom Penh Pochentong
32h 45m
2 stops
LHR10:10 pmLondon Heathrow
Sep 21
LHR10:20 amLondon Heathrow
40h 15m
2 stops
PNH8:35 amPhnom Penh Pochentong
Finnair
Jun 9
PNH7:25 pmPhnom Penh Pochentong
31h 15m
2 stops
LHR8:40 pmLondon Heathrow
Jul 29
LHR9:30 amLondon Heathrow
41h 05m
2 stops
PNH8:35 amPhnom Penh Pochentong
Finnair
Jun 30
PNH7:25 pmPhnom Penh Pochentong
32h 45m
2 stops
LHR10:10 pmLondon Heathrow
Jul 29
LHR6:10 pmLondon Heathrow
32h 25m
2 stops
PNH8:35 amPhnom 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 May. Flight prices, which tend to average around $734, 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 $734.

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 11 weeks ahead of your departure date. In general, you can expect to find flights to London for around $1,018 when searching 11 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 $797 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

$314

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 $314. The best round-trip flight deal from Phnom Penh to London found on momondo in the last 72 hours is $689.
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. 15h 30m 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
7.2
143 reviews
Search China Eastern flights
China SouthernPriceFrom $663Free CancellationRating
7.5
94 reviews
Search China Southern flights
Air ChinaPriceFrom $706Free CancellationRating
7.1
82 reviews
Search Air China flights
Singapore AirlinesPriceFrom $921Free CancellationRating
8.1
1,288 reviews
Search Singapore Airlines flights
EmiratesPriceFrom $929Free CancellationRating
8.0
3,193 reviews
Search Emirates flights
British AirwaysPriceFrom $958Free CancellationRating
6.6
6,718 reviews
Search British Airways flights
Qatar AirwaysPriceFrom $993Free CancellationRating
7.4
3,540 reviews
Search Qatar Airways flights
Thai AirwaysPriceFrom $1,095Free CancellationRating
7.8
319 reviews
Search Thai Airways flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Croydon
Luton
Guildford
Hayes
Slough
Dartford
Stansted
Ilford
Dover
Canterbury
Colchester
Milton Keynes
Horley
Wembley
Chelmsford
Eastbourne
Southend-on-Sea
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