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Cheap flights from Phnom Penh to the United Kingdom from £226

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.
PNH — LHR
18 Oct — 25 Oct1
1 adult
1 adult, Economy

Cheap 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 18 September 2025.

Round-trip from

£776

One-way from

£226

Popular in

July

Cheapest in

November

Average price

£673
Etihad Airways
  • Etihad Airways
  • 19/12-2/1
  • 2 total stops
  • 59h 05m total
  • Phnom Penh to United Kingdom
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14/10
  • 14/10
  • 3 total stops
  • 46h 40m total
  • Phnom Penh to United Kingdom
Search Deals
Highest demand for flights based on searches. 15% potential increase in price (£89 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from Phnom Penh to United Kingdom

Cheapest flights from Phnom Penh to United Kingdom
Explore the most affordable flight options available from Phnom Penh to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2025.

Fri 19/1207:55PNH - LHR
1 stop37h 35mEtihad Airways
Fri 2/113:55LHR - PNH
1 stop21h 30mEtihad Airways
Deal found 16/9£776
Thu 30/1007:55PNH - LGW
3 stops32h 20mMultiple Airlines
Thu 6/1116:05LGW - PNH
3 stops43h 20mMultiple Airlines
Deal found 15/9£857
Sat 1/1107:55PNH - LHR
1 stop29h 45mEtihad Airways
Sat 8/1119:20LHR - PNH
1 stop28h 10mEtihad Airways
Deal found 17/9£980
Fri 19/1207:55PNH - LHR
2 stops33h 15mMultiple Airlines
Fri 2/120:55LHR - PNH
1 stop14h 30mMultiple Airlines
Deal found 16/9£995
Thu 30/1007:55PNH - LHR
3 stops31h 10mMultiple Airlines
Thu 6/1106:35LHR - PNH
2 stops16h 55mMultiple Airlines
Deal found 15/9£1,008
Sat 1/1107:55PNH - LHR
1 stop29h 45mMultiple Airlines
Sat 8/1120:45LHR - PNH
2 stops26h 45mMultiple Airlines
Deal found 17/9£1,067

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 18 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

Phnom Penh

Fly to

United Kingdom

Route

Depart

Return

Price

Phnom PenhManchester

PNH - MAN

PNHMAN

Phnom Penh Pochentong

Mon 16/3

07:55-12:15

1 stop35h 20m

Manchester

Fri 20/3

19:55-18:25

1 stop15h 30m

£742

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

£776

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 30/10

07:55-09:15

3 stops32h 20m

London Gatwick

Thu 6/11

16:05-18:25

3 stops43h 20m

£857

Phnom PenhBirmingham

PNH - BHX

PNHBHX

Phnom Penh Pochentong

Thu 30/10

07:55-11:10

2 stops34h 15m

Birmingham

Thu 6/11

19:55-18:25

2 stops39h 30m

£963

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 1/11

07:55-06:40

1 stop29h 45m

London Heathrow

Sat 8/11

19:20-06:30

1 stop28h 10m

£980

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Fri 19/12

07:55-10:10

2 stops33h 15m

London Heathrow

Fri 2/1

20:55-18:25

1 stop14h 30m

£995

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Sat 1/11

07:55-06:40

1 stop29h 45m

London Heathrow

Sat 8/11

20:45-06:30

2 stops26h 45m

£1,067

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Tue 14/10

13:55-06:35

3 stops46h 40m

£226

Phnom PenhLondon

PNH - LGW

PNHLGW

Phnom Penh Pochentong

Thu 9/10

13:55-06:35

3 stops46h 40m

£239

Phnom PenhLondon

PNH - LHR

PNHLHR

Phnom Penh Pochentong

Tue 14/10

13:55-15:55

3 stops32h 00m

£290

Flights are sorted by cheapest return flights first.

Deals found on 17/9

Showing 1-10 of 25 results
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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

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

Currently, January is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £112). Flying from Phnom Penh to United Kingdom in August is currently the most expensive (average of £164). 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.

What is the cheapest time of day to fly from PNH to GB?

Find hourly flight availability from Phnom Penh to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2025.

When flying from Phnom Penh to United Kingdom, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 18 September 2025.
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
7.5
Good
110 reviews
Check prices

Comfort

7.8

Crew

8.3

Food

7.3

Overall

7.5

Entertainment

7.5

Boarding

8.0

Reviews

1 / 5
6.0
Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.
China Southern
7.5
Good
110 reviews
China Southern
7.5
Good
110 reviews
Check prices

Comfort

7.8

Crew

8.3

Food

7.3

Overall

7.5

Entertainment

7.5

Boarding

8.0

Reviews

1 / 5
6.0
Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.
China Eastern
7.2
Good
166 reviews
China Southern
7.5
Good
110 reviews
Check prices

Comfort

7.8

Crew

8.3

Food

7.3

Overall

7.5

Entertainment

7.5

Boarding

8.0

Reviews

1 / 5
6.0
Good

Ebbi,Aug 2025

LAX - CAN

Boarding was nice the employees and the crew. They were very nice but the food maybe I don’t like it but it’s not international food. It’s more towards Chinese Tayst, which I do understand but that’s only complain. I have.

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.

  • How long is the flight from Phnom Penh to United Kingdom?

    For as low as £742, Etihad Airways can have you in United Kingdom from Phnom Penh in 35h 20m. There are 6260 mi between Phnom Penh and United Kingdom.

  • 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 Heathrow, Phnom Penh Pochentong - London City and Phnom Penh Pochentong - London Gatwick.

  • 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, January is the cheapest month in which you can book a flight from Phnom Penh to United Kingdom (average of £112). Flying from Phnom Penh to United Kingdom in August is currently the most expensive (average of £164). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Phnom Penh to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.
Phnom Penh to Heathrow flights
Phnom Penh to Edinburgh flights
Phnom Penh to Belfast City flights
Phnom Penh to Birmingham flights
Phnom Penh to Gatwick flights
Phnom Penh to Manchester flights

Top airline flying from Phnom Penh to United Kingdom

Discover the top airline that operate flights from Phnom Penh to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 September 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£475Average£560FlexibilityNo cancel feeOn-time69%
Search China Southern flights

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How does Cheapflights help users find flights from Phnom Penh to United Kingdom?

When you search for this flight from Phnom Penh to United Kingdom, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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