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Flights to Phnom Penh Pochentong

£1,237 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 23/7. 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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LHR
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PNH
6232 mimulti-stop
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PNH
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LHR
6232 mimulti-stop
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LGW
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6227 mimulti-stop
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Multiple Airlines

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 13 March 2026.
Use the filters below to find and compare flights to Phnom Penh that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest one-way
Fastest single journey

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 23/7

21:30-10:00

1 stop30h 30m

£1,237

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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 £552.

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 £705 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 £612 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 £568 in November
MOST EXPENSIVE MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTJuly41% more expensiveIt costs about £997 for flights to Phnom Penh from London Heathrow Airport in July
MOST POPULAR MONTH TO FLY TO PHNOM PENH FROM LONDON HEATHROW AIRPORTJanuary1,161% more users visitedMore momondo users searched in flights to Phnom Penh from London Heathrow Airport in January 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

£1,237

Fastest flight time

30h 30m

Popular in

December
The best one-way flight price to Phnom Penh from United Kingdom in the last 72 hours is £1,237 (London Heathrow to Phnom Penh Pochentong).
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The fastest flight to Phnom Penh from United Kingdom takes 30h 30m (London Heathrow 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 18 days out, which is when prices tend to be around £669. Don’t hesitate to check prices now though, because momondo users recently found tickets for as low as £461.

Is there an alternative airport near Phnom Penh?

Phnom Penh Pochentong Airport can be an alternative airport used for travel to Phnom Penh.

Is there a cheaper alternative to flying into Phnom Penh?

The cheapest airport near Phnom Penh is typically Phnom Penh Pochentong Airport, with an average price of £158/person. These prices vary based on where travellers are coming from. It is suggested that travellers looking to save money try momondo’s Airport-to-Airport Pricing Tool.

What is the absolute cheapest flight to Phnom Penh?

The best price found on momondo to Phnom Penh was £35/pp from Bangkok, which is 78% cheaper than the average flight price to Phnom Penh. To find the cheapest price to Phnom Penh from your area, use momondo’s Airport-to-Airport Pricing Tool.

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 18 as of March 2026.

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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