Flights to Phnom Penh Pochentong

£290 Cheap flights to Phnom Penh

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to Phnom Penh departing on 30/8. 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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0 bags

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Find the cheapest flights from the United Kingdom to Phnom Penh

Cheap return flights

Air China Logo
17:40 - 23:10LHR-PNH
22h 30m1 stop
Air China Logo
00:25 - 17:50PNH-LHR
24h 25m1 stop
£399Air China
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Mon, 24 Nov - Sat, 6 Dec
Air China Logo
17:40 - 23:10LHR-PNH
22h 30m1 stop
Air China Logo
00:25 - 15:55PNH-LHR
22h 30m1 stop
£402Air China
Find Deal
Mon, 24 Nov - Sun, 7 Dec
Air China Logo
20:25 - 23:10LHR-PNH
19h 45m1 stop
Air China Logo
00:25 - 17:50PNH-LHR
24h 25m1 stop
£403Air China
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Mon, 3 Nov - Sun, 16 Nov
China Southern Logo
12:00 - 14:30LGW-PNH
20h 30m1 stop
China Southern Logo
15:35 - 06:50PNH-LGW
21h 15m1 stop
£462China Southern
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Mon, 22 Sep - Sun, 5 Oct
China Southern Logo
21:30 - 14:35LHR-PNH
34h 05m2 stops
China Southern Logo
15:50 - 18:15PNH-LHR
33h 25m1 stop
£471China Southern
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Wed, 29 Oct - Fri, 14 Nov
Singapore Airlines Logo
09:20 - 13:45LGW-PNH
21h 25m1 stop
Singapore Airlines Logo
14:40 - 06:25PNH-LGW
22h 45m1 stop
£561Singapore Airlines
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Mon, 17 Nov - Sun, 28 Dec
Emirates Logo
21:10 - 16:35STN-PNH
37h 25m2 stops
Emirates Logo
20:50 - 12:55PNH-STN
22h 05m2 stops
£746Emirates
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Tue, 2 Sep - Mon, 8 Sep
Emirates Logo
21:10 - 16:35STN-PNH
37h 25m2 stops
Emirates Logo
20:50 - 18:45PNH-STN
27h 55m2 stops
£767Emirates
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Fri, 5 Sep - Mon, 8 Sep
Qatar Airways Logo
20:15 - 16:15BHX-PNH
38h 00m3 stops
Qatar Airways Logo
17:40 - 13:40PNH-BHX
26h 00m2 stops
£892Qatar Airways
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Wed, 1 Oct - Tue, 21 Oct
Qatar Airways Logo
20:15 - 16:15BHX-PNH
38h 00m3 stops
Qatar Airways Logo
17:40 - 13:40PNH-BHX
26h 00m2 stops
£894Qatar Airways
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Wed, 1 Oct - Tue, 21 Oct

momondo Fare Finder

 
Locate flights to Phnom Penh Pochentong that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 279,928 searches and data was last updated on 30 July 2025.
Use the filters below to find and compare flights to Phnom Penh that are best for you.

Fly from

Route

Depart

Return

Price

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 24/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Sat 6/12

00:25-17:50

1 stop24h 25m

£399

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 24/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Sun 7/12

00:25-15:55

1 stop22h 30m

£402

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 3/11

20:25-23:10

1 stop19h 45m

Phnom Penh Pochentong

Sun 16/11

00:25-17:50

1 stop24h 25m

£403

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Mon 22/9

12:00-14:30

1 stop20h 30m

Phnom Penh Pochentong

Sun 5/10

15:35-06:50

1 stop21h 15m

£462

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 29/10

21:30-14:35

2 stops34h 05m

Phnom Penh Pochentong

Fri 14/11

15:50-18:15

1 stop33h 25m

£471

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Mon 17/11

09:20-13:45

1 stop21h 25m

Phnom Penh Pochentong

Sun 28/12

14:40-06:25

1 stop22h 45m

£561

LondonPhnom Penh

STN - PNH

STNPNH

London Stansted

Tue 2/9

21:10-16:35

2 stops37h 25m

Phnom Penh Pochentong

Mon 8/9

20:50-12:55

2 stops22h 05m

£746

LondonPhnom Penh

STN - PNH

STNPNH

London Stansted

Fri 5/9

21:10-16:35

2 stops37h 25m

Phnom Penh Pochentong

Mon 8/9

20:50-18:45

2 stops27h 55m

£767

BirminghamPhnom Penh

BHX - PNH

BHXPNH

Birmingham

Wed 1/10

20:15-16:15

3 stops38h 00m

Phnom Penh Pochentong

Tue 21/10

17:40-13:40

2 stops26h 00m

£892

BirminghamPhnom Penh

BHX - PNH

BHXPNH

Birmingham

Wed 1/10

20:15-16:15

3 stops38h 00m

Phnom Penh Pochentong

Tue 21/10

17:40-13:40

2 stops26h 00m

£894

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Phnom Penh from

Phnom Penh flights insights and trends

Explore insights for your Phnom Penh flight to craft the best travel plan

What is the cheapest month to fly to Phnom Penh?

The month of September is another great option to travel to Phnom Penh, with average flight prices from United Kingdom averaging around £554.

What is the cheapest day to depart on your flight to Phnom Penh?

Our data shows that Monday is the least expensive day to fly to Phnom Penh. Tickets to fly out on this day can be as low as £622. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Phnom Penh on Friday is £724.

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

Our data shows that the cheapest United Kingdom to Phnom Penh flights are usually those with departure times in the evening. Our users have found flights to Phnom Penh in the evening for as low as £531. At midday is when there is more demand to fly to Phnom Penh, so prices are often more expensive at around £816 per ticket.

How far in advance should I book a flight to Phnom Penh?

You are more likely to see cheaper flights to Phnom Penh from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Phnom Penh for around £713 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phnom Penh from United Kingdom for as low as £614 on momondo.

Cheapest flights to Phnom Penh Pochentong

Find the cheapest flights to Phnom Penh Pochentong from your nearest city or airport
Find flights from London Heathrow Airport to Phnom Penh
CHEAPEST MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTNovember20% cheaperFlying from London Heathrow Airport to Phnom Penh costs on average just £577 in November
MOST EXPENSIVE MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTJuly38% more expensiveIt costs about £990 for flights to Phnom Penh from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTNovember583% more users visitedMore momondo users searched in flights to Phnom Penh from London Heathrow Airport in November than any other month

Cheap Phnom Penh flight deals and tips

Summary info about Phnom Penh flight prices, duration and airlines

Best One-Way Price

£290

Best Round-Trip Price

£399

Fastest flight time

20h 50m

Popular in

December
The best one-way flight price to Phnom Penh from United Kingdom in the last 72 hours is £290 (London Gatwick to Phnom Penh Pochentong).
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The best round-trip flight price to Phnom Penh from United Kingdom in the last 72 hours is £399 (London Heathrow to Phnom Penh Pochentong).
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The fastest flight to Phnom Penh from United Kingdom takes 20h 50m (London Gatwick to Phnom Penh Pochentong).
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December has the highest demand for flights to Phnom Penh, with a 4% price increase on average.
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Frequently asked questions about flying to Phnom Penh

How far in advance should I book a flight to Phnom Penh?

The best time to book a flight to Phnom Penh from United Kingdom is 79 days out, which is when prices tend to be around £664. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as £478.

When did momondo last update prices for flights to Phnom Penh Pochentong Airport?

Prices for flights to Phnom Penh Pochentong Airport are updated daily.

How many operators does momondo search for flights to Phnom Penh Pochentong Airport?

The number of operators available for flights to Phnom Penh Pochentong Airport is 23 as of July 2025.

How old do you have to be to fly to Phnom Penh Pochentong Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Phnom Penh Pochentong Airport.

What documentation or ID do you need to fly to Phnom Penh Pochentong Airport?

The travel and health documents required for your trip to Phnom Penh Pochentong Airport 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 Phnom Penh Pochentong Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

Finding the right flight to Phnom Penh is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. These options can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Phnom Penh quick and easy, saving you time and money.

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

All flight searches to Phnom Penh on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights to Phnom Penh?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to Phnom Penh.

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

Yes. momondo can track flight prices for Phnom Penh 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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