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Cheap flights from Phnom Penh to the United Kingdom from £733

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/8. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Phnom Penh to United Kingdom

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One-way flights from Phnom Penh to United Kingdom
Search for one-way flight options from Phnom Penh to United Kingdom. Find affordable one-way fares based on user searches. Data last updated 7 May 2026.

Tue 18/818:20
PNH
-
LHR
1 stop17h 05m
British Airways
Deal found 5/5£733

Find flight deals from Phnom Penh to United Kingdom

Keep the following information in mind while searching for Phnom Penh to United Kingdom flight deals. Data was last updated 7 May 2026.

Popular in

April

Cheapest in

November

Average price

£841
Highest demand for flights based on searches. 30% potential increase in price (£235 potential increase over avg. return price).
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Cheapest flight prices on average. 8% potential price decrease (£45 potential savings vs. average return price).
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Average for round-trip flights in May 2026
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Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 7 May 2026.
Use the filters below to find and compare flights from Phnom Penh to the United Kingdom that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest one-way
Fastest single journey

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 18/8

18:20-05:25

1 stop17h 05m

£733

Flights are sorted by cheapest return flights first.

Deals found on 5/5

Sorted by cheapest first

Best time to book a flight from Phnom Penh to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Phnom Penh with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to the United Kingdom
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Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Phnom Penh to United Kingdom?

    Most people fly from Phnom Penh Pochentong (PNH) if they book a flight from Phnom Penh to United Kingdom. Phnom Penh Pochentong is conveniently located just 5.0 mi from Phnom Penh’s city center.

  • What are the cheapest airlines to fly from Phnom Penh to United Kingdom one-way?

    To fly one-way, consider booking your trip with China Southern, which is currently one of the cheapest options available, starting at £217. China Eastern flights start at £240 while deals on Singapore Airlines start at £307 one-way.

  • What are the most popular routes from Phnom Penh to United Kingdom?

    The most popular flight routes from Phnom Penh to United Kingdom are Phnom Penh Pochentong - London City, Phnom Penh Pochentong - Edinburgh Turnhouse and Phnom Penh Pochentong - Belfast Intl.

  • Can I find deals for flights from Phnom Penh to United Kingdom that include hotel bookings?

    Yes. In addition to deals on Phnom Penh to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Phnom Penh to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to United Kingdom.

  • Can I find deals for business class flights from Phnom Penh to United Kingdom?

    Yes. Cheapflights offers flight deals from Phnom Penh to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Can Cheapflights find flights from Phnom Penh to United Kingdom with no change fees?

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Can Cheapflights notify me if prices for flights from Phnom Penh to United Kingdom become cheaper?

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