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Cheap flights from Phnom Penh to London from £761

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Phnom Penh to London departing on 12/3. 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

Etihad Airways Logo
19:50 - 14:30PNH-LHR
25h 40m1 stop
Etihad Airways Logo
20:55 - 18:25LHR-PNH
14h 30m1 stop
£761Etihad Airways
Find Deal
Thu, 12 Mar - Mon, 16 Mar
Etihad Airways Logo
07:55 - 14:30PNH-LHR
37h 35m1 stop
Etihad Airways Logo
13:55 - 18:25LHR-PNH
21h 30m1 stop
£776Etihad Airways
Find Deal
Fri, 19 Dec - Fri, 2 Jan
Etihad Airways Logo
07:55 - 14:30PNH-LHR
37h 35m1 stop
Etihad Airways Logo
13:55 - 18:25LHR-PNH
21h 30m1 stop
£778Etihad Airways
Find Deal
Fri, 19 Dec - Fri, 2 Jan
Multiple Airlines Logo
07:55 - 07:50PNH-STN
30h 55m3 stops
Multiple Airlines Logo
21:35 - 18:25STN-PNH
37h 50m3 stops
£849Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 09:50PNH-STN
32h 55m3 stops
Multiple Airlines Logo
21:35 - 18:25STN-PNH
37h 50m3 stops
£853Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 09:15PNH-LGW
32h 20m3 stops
Multiple Airlines Logo
16:05 - 18:25LGW-PNH
43h 20m3 stops
£858Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 21:35PNH-LGW
20h 40m2 stops
Multiple Airlines Logo
20:50 - 18:25LGW-PNH
38h 35m3 stops
£863Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 21:35PNH-LGW
20h 40m2 stops
Multiple Airlines Logo
20:50 - 18:25LGW-PNH
38h 35m3 stops
£864Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 07:05PNH-STN
30h 10m2 stops
Multiple Airlines Logo
21:35 - 18:25STN-PNH
37h 50m3 stops
£928Multiple Airlines
Find Deal
Thu, 30 Oct - Thu, 6 Nov
Multiple Airlines Logo
07:55 - 10:10PNH-LHR
33h 15m2 stops
Multiple Airlines Logo
20:55 - 18:25LHR-PNH
14h 30m1 stop
£996Multiple Airlines
Find Deal
Fri, 19 Dec - Fri, 2 Jan

Etihad Airways flights from Phnom Penh to London

Our best Etihad Airways deals on Phnom Penh to London flight tickets
Etihad Airways
12 Mar
PNH19:50Phnom Penh Pochentong
25h 40m
1 stop
LHR14:30London Heathrow
16 Mar
LHR20:55London Heathrow
14h 30m
1 stop
PNH18:25Phnom Penh Pochentong
£761
Find similar
Etihad Airways
19 Dec
PNH07:55Phnom Penh Pochentong
37h 35m
1 stop
LHR14:30London Heathrow
2 Jan
LHR13:55London Heathrow
21h 30m
1 stop
PNH18:25Phnom Penh Pochentong
£776
Find similar
Etihad Airways
19 Dec
PNH07:55Phnom Penh Pochentong
37h 35m
1 stop
LHR14:30London Heathrow
2 Jan
LHR13:55London Heathrow
21h 30m
1 stop
PNH18:25Phnom Penh Pochentong
£778
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Phnom Penh to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 17 September 2025.
Use the filters below to find and compare flights from Phnom Penh to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 12/3

19:50-14:30

1 stop25h 40m

London Heathrow

Mon 16/3

20:55-18:25

1 stop14h 30m

£761

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-14:30

1 stop37h 35m

London Heathrow

Fri 2/1

13:55-18:25

1 stop21h 30m

£776

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-14:30

1 stop37h 35m

London Heathrow

Fri 2/1

13:55-18:25

1 stop21h 30m

£778

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Thu 30/10

07:55-07:50

3 stops30h 55m

London Stansted

Thu 6/11

21:35-18:25

3 stops37h 50m

£849

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Thu 30/10

07:55-09:50

3 stops32h 55m

London Stansted

Thu 6/11

21:35-18:25

3 stops37h 50m

£853

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 30/10

07:55-09:15

3 stops32h 20m

London Gatwick

Thu 6/11

16:05-18:25

3 stops43h 20m

£858

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 30/10

07:55-21:35

2 stops20h 40m

London Gatwick

Thu 6/11

20:50-18:25

3 stops38h 35m

£863

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 30/10

07:55-21:35

2 stops20h 40m

London Gatwick

Thu 6/11

20:50-18:25

3 stops38h 35m

£864

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Thu 30/10

07:55-07:05

2 stops30h 10m

London Stansted

Thu 6/11

21:35-18:25

3 stops37h 50m

£928

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-10:10

2 stops33h 15m

London Heathrow

Fri 2/1

20:55-18:25

1 stop14h 30m

£996

Flights are sorted by cheapest return flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

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 £529, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Phnom Penh averaging around £564.

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 £566. 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 £833.

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 £622. Flights in the evening are often more expensive, with an average ticket price of £730.

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 weeks ahead of your departure date. In general, you can expect to find flights to London for around £753 when searching weeks before you fly. 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 £562 on momondo.

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

As of September 2025, prices for Phnom Penh to London flights are approximately 30% 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

Direct flights

None
There are no direct flights from Phnom Penh to London. There are no popular flight routes from Phnom Penh to London.
Search flight deals

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

    London is 6219.7 mi away from Phnom Penh Pochentong. Typically, this will take 17h 15m 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 £475Free CancellationRating
7.5
110 reviews
Search China Southern flights

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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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