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Cheap flights from Phnom Penh to the United Kingdom from £205

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 the United Kingdom departing on 4/10. 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 the United Kingdom

Cheap return flights

Etihad Airways Logo
07:55 - 18:10PNH-LHR
17h 15m1 stop
Etihad Airways Logo
13:55 - 18:25LHR-PNH
21h 30m1 stop
£635Etihad Airways
Find Deal
Fri, 12 Dec - Fri, 2 Jan
Etihad Airways Logo
19:50 - 06:40PNH-LHR
17h 50m1 stop
Etihad Airways Logo
08:50 - 06:30LHR-PNH
14h 40m1 stop
£665Etihad Airways
Find Deal
Thu, 12 Mar - Mon, 16 Mar
Etihad Airways Logo
07:55 - 18:10PNH-LHR
17h 15m1 stop
Etihad Airways Logo
20:55 - 18:25LHR-PNH
14h 30m1 stop
£729Etihad Airways
Find Deal
Fri, 19 Dec - Fri, 2 Jan
Etihad Airways Logo
07:55 - 14:30PNH-LHR
37h 35m1 stop
Etihad Airways Logo
08:50 - 18:25LHR-PNH
26h 35m1 stop
£730Etihad Airways
Find Deal
Fri, 19 Dec - Fri, 2 Jan
Etihad Airways Logo
19:50 - 06:40PNH-LHR
17h 50m1 stop
Etihad Airways Logo
13:55 - 06:30LHR-PNH
33h 35m1 stop
£747Etihad Airways
Find Deal
Sat, 13 Dec - Sat, 27 Dec
Etihad Airways Logo
19:50 - 14:30PNH-LHR
25h 40m1 stop
Etihad Airways Logo
20:55 - 18:25LHR-PNH
14h 30m1 stop
£764Etihad 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
£781Etihad Airways
Find Deal
Fri, 19 Dec - Fri, 2 Jan
Logo
07:55 - 07:50PNH-STN
30h 55m3 stops
Logo
18:55 - 06:30STN-PNH
28h 35m2 stops
£829
Find Deal
Fri, 12 Dec - Sat, 3 Jan
Logo
07:55 - 07:50PNH-STN
30h 55m3 stops
Logo
07:05 - 06:30STN-PNH
40h 25m3 stops
£832
Find Deal
Fri, 12 Dec - Sat, 3 Jan
Logo
07:55 - 07:50PNH-STN
30h 55m3 stops
Logo
21:35 - 18:25STN-PNH
37h 50m3 stops
£852
Find Deal
Thu, 30 Oct - Thu, 6 Nov

Etihad Airways flights from Phnom Penh to United Kingdom

Our best Etihad Airways deals on Phnom Penh to United Kingdom flight tickets
Etihad Airways
12 Dec
PNH07:55Phnom Penh Pochentong
17h 15m
1 stop
LHR18:10London Heathrow
2 Jan
LHR13:55London Heathrow
21h 30m
1 stop
PNH18:25Phnom Penh Pochentong
£635
Find similar
Etihad Airways
12 Mar
PNH19:50Phnom Penh Pochentong
17h 50m
1 stop
LHR06:40London Heathrow
16 Mar
LHR08:50London Heathrow
14h 40m
1 stop
PNH06:30Phnom Penh Pochentong
£665
Find similar
Etihad Airways
19 Dec
PNH07:55Phnom Penh Pochentong
17h 15m
1 stop
LHR18:10London Heathrow
2 Jan
LHR20:55London Heathrow
14h 30m
1 stop
PNH18:25Phnom Penh Pochentong
£729
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Phnom Penh to United Kingdom 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 16 September 2025.
Use the filters below to find and compare flights from Phnom Penh to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 12/12

07:55-18:10

1 stop17h 15m

London Heathrow

Fri 2/1

13:55-18:25

1 stop21h 30m

£635

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Thu 12/3

19:50-06:40

1 stop17h 50m

London Heathrow

Mon 16/3

08:50-06:30

1 stop14h 40m

£665

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-18:10

1 stop17h 15m

London Heathrow

Fri 2/1

20:55-18:25

1 stop14h 30m

£729

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-14:30

1 stop37h 35m

London Heathrow

Fri 2/1

08:50-18:25

1 stop26h 35m

£730

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 13/12

19:50-06:40

1 stop17h 50m

London Heathrow

Sat 27/12

13:55-06:30

1 stop33h 35m

£747

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

£764

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

£781

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Fri 12/12

07:55-07:50

3 stops30h 55m

London Stansted

Sat 3/1

18:55-06:30

2 stops28h 35m

£829

Phnom PenhLondon

PNH - STN

PNHSTN

Phnom Penh Pochentong

Fri 12/12

07:55-07:50

3 stops30h 55m

London Stansted

Sat 3/1

07:05-06:30

3 stops40h 25m

£832

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

£852

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Phnom Penh to United Kingdom

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 United Kingdom?

The cheapest month to fly to United Kingdom from Phnom Penh is in November. Flight prices, which tend to average around £531, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of November, then departing from Phnom Penh during the month March is also very affordable. Most momondo users find prices during this month for around £566.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Phnom Penh to United Kingdom is on a Sunday. Travellers who choose to depart for United Kingdom on a Sunday will often find tickets for as low as £568. 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 United Kingdom for around £836.

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

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £624. Try not to purchase tickets in the evening because they tend to be around £732. Of course, these prices can vary depending on the time of year and what airport you fly to.

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Phnom Penh when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £755 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Phnom Penh for as low as £564 on momondo.

Can stopping save me money on Phnom Penh to United Kingdom flights?

You could potentially save up to 1% on your flight if you consider stops on a Phnom Penh to United Kingdom flight.

Cheap Phnom Penh to United Kingdom flight deals and tips

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

Direct flights

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

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Phnom Penh Pochentong Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Phnom Penh to United Kingdom

Compare and see reviews for airlines that fly from Phnom Penh to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £477Free CancellationRating
7.5
110 reviews
Search China Southern flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Phnom Penh.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Phnom Penh.

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

Of course. momondo tracks the price of Phnom Penh to United Kingdom flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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