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Cheap flights from Phnom Penh to the United Kingdom

PNH — LHR
26 helmi — 5 maalis1
1 adult
1 adult, Economy, 0 bags

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 27 tammikuu 2026.

Popular in

July

Cheapest in

November

Average price

£654
Highest demand for flights based on searches. 14% potential increase in price (£85 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).
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Average for round-trip flights in January 2026
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Cheapflights Insights

Everything you need to know about your flight from Phnom Penh to the United Kingdom

What is the cheapest month to book a flight from Phnom Penh to United Kingdom?

Currently, September is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £475). Flying from Phnom Penh to United Kingdom in January is currently the most expensive (average of £748). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 27 tammikuu 2026.
Check out reviews from past customers who have flown with China Southern and China Eastern from Phnom Penh to the United Kingdom to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Southern
7.3
Good
136 reviews
Check prices

Comfort

7.6

Boarding

7.7

Overall

7.3

Entertainment

7.1

Crew

8.0

Food

7.1

Reviews

1 / 6
2.0
Mediocre

Anonymous,Jan 2026

NBO - CSX

I was refused boarding due to the Australian CTD I used to travel on at BNE Airport, and did not receive any refund. Instead, considering that I was travelling to meet my wife and kid after 4 years of separation and that all the arrangements had been made, I had to book a different flight ticket (Qatar Airways), which was too expensive.
China Southern
7.3
Good
136 reviews
China Southern
7.3
Good
136 reviews
Check prices

Comfort

7.6

Boarding

7.7

Overall

7.3

Entertainment

7.1

Crew

8.0

Food

7.1

Reviews

1 / 6
2.0
Mediocre

Anonymous,Jan 2026

NBO - CSX

I was refused boarding due to the Australian CTD I used to travel on at BNE Airport, and did not receive any refund. Instead, considering that I was travelling to meet my wife and kid after 4 years of separation and that all the arrangements had been made, I had to book a different flight ticket (Qatar Airways), which was too expensive.
China Eastern
7.2
Good
191 reviews
China Southern
7.3
Good
136 reviews
Check prices

Comfort

7.6

Boarding

7.7

Overall

7.3

Entertainment

7.1

Crew

8.0

Food

7.1

Reviews

1 / 6
2.0
Mediocre

Anonymous,Jan 2026

NBO - CSX

I was refused boarding due to the Australian CTD I used to travel on at BNE Airport, and did not receive any refund. Instead, considering that I was travelling to meet my wife and kid after 4 years of separation and that all the arrangements had been made, I had to book a different flight ticket (Qatar Airways), which was too expensive.

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 £215. China Eastern flights start at £216 while deals on Malaysia Airlines start at £284 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.

  • What is the cheapest month to book a flight from Phnom Penh to United Kingdom?

    Currently, September is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £475). Flying from Phnom Penh to United Kingdom in January is currently the most expensive (average of £748). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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