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Cheap flights from the United Kingdom to Phnom Penh from £287

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 31/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
20 Jul — 27 Jul1
1 adult

Cheap flight deals from United Kingdom to Phnom Penh

Keep the following information in mind while searching for United Kingdom to Phnom Penh flight deals. Data was last updated 15 July 2025.

Round-trip from

£527

One-way from

£287

Popular in

July

Cheapest in

November

Average price

£850
22/9-25/10
  • 22/9-25/10
  • 4 total stops
  • 80h 40m total
  • United Kingdom to Phnom Penh
Search Deals
31/8
  • 31/8
  • 3 total stops
  • 54h 05m total
  • United Kingdom to Phnom Penh
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from United Kingdom to Phnom Penh

Cheapest flights from United Kingdom to Phnom Penh
Explore the most affordable flight options available from United Kingdom to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Mon 3/1106:05MAN - PNH
2 stops34h 25mMultiple Airlines
Sun 23/1108:00PNH - MAN
2 stops21h 10mMultiple Airlines
Deal found 15/7£515
Sun 19/1014:45LHR - PNH
1 stop34h 10mEtihad Airways
Thu 30/1007:55PNH - LHR
1 stop29h 50mEtihad Airways
Deal found 14/7£551
Thu 28/812:00LGW - PNH
1 stop30h 10mChina Southern
Thu 4/908:00PNH - LGW
1 stop29h 10mChina Southern
Deal found 14/7£551
Sat 4/1022:10LHR - PNH
1 stop34h 20mChina Southern
Sun 30/1115:50PNH - LHR
1 stop33h 25mChina Southern
Deal found 15/7£553
Wed 5/1117:40LHR - PNH
1 stop22h 30mAir China
Tue 25/1100:25PNH - LHR
1 stop24h 25mAir China
Deal found 13/7£553
Mon 10/1110:30LGW - PNH
1 stop29h 45mChina Eastern
Fri 5/1200:15PNH - LGW
1 stop20h 45mChina Eastern
Deal found 13/7£559
Sun 12/1009:05LGW - PNH
2 stops39h 50mMultiple Airlines
Sun 26/1019:55PNH - LGW
1 stop29h 35mMultiple Airlines
Deal found 14/7£564
Mon 20/1022:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Sat 1/1111:40PNH - LHR
1 stop38h 30mShenzhen Airlines
Deal found 15/7£567
Mon 1/1211:40LGW - PNH
2 stops28h 30mAir China
Sat 13/1211:40PNH - LGW
2 stops24h 55mAir China
Deal found 14/7£592
Thu 30/1018:05STN - PNH
3 stops46h 05mMultiple Airlines
Thu 20/1112:10PNH - STN
3 stops34h 50mMultiple Airlines
Deal found 13/7£597
Tue 9/921:20LHR - PNH
2 stops32h 15mChina Eastern
Thu 9/1018:50PNH - LHR
2 stops29h 50mChina Eastern
Deal found 13/7£601
Mon 6/1020:50LHR - PNH
2 stops31h 10mMultiple Airlines
Sat 18/1018:20PNH - LHR
2 stops30h 50mMultiple Airlines
Deal found 13/7£609

Cheapflights Fare Finder

Customise your flight search to find flights from United Kingdom to Phnom Penh 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 15 July 2025.
Use the filters below to find and compare flights from the United Kingdom to Phnom Penh that are best for you.

Fly from

United Kingdom

Fly to

Phnom Penh

Route

Depart

Return

Price

ManchesterPhnom Penh

MAN - PNH

MANPNH

Manchester

Mon 3/11

06:05-23:30

2 stops34h 25m

Phnom Penh Pochentong

Sun 23/11

08:00-22:10

2 stops21h 10m

£515

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sun 19/10

14:45-06:55

1 stop34h 10m

Phnom Penh Pochentong

Mon 3/11

07:55-06:45

1 stop29h 50m

£551

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Thu 28/8

12:00-00:10

1 stop30h 10m

Phnom Penh Pochentong

Thu 4/9

08:00-07:10

1 stop29h 10m

£551

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 4/10

22:10-14:30

1 stop34h 20m

Phnom Penh Pochentong

Sun 30/11

15:50-18:15

1 stop33h 25m

£553

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 5/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Tue 25/11

00:25-17:50

1 stop24h 25m

£553

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Sun 12/10

09:05-06:55

2 stops39h 50m

Phnom Penh Pochentong

Sun 26/10

19:55-18:30

1 stop29h 35m

£564

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 20/10

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Sat 1/11

11:40-19:10

1 stop38h 30m

£567

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 17/9

12:35-23:05

1 stop28h 30m

Phnom Penh Pochentong

Tue 30/9

00:20-06:35

1 stop36h 15m

£593

LondonPhnom Penh

STN - PNH

STNPNH

London Stansted

Thu 30/10

18:05-23:10

3 stops46h 05m

Phnom Penh Pochentong

Thu 20/11

12:10-16:00

3 stops34h 50m

£597

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 9/9

21:20-11:35

3 stops32h 15m

Phnom Penh Pochentong

Thu 9/10

18:50-18:40

2 stops29h 50m

£601

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Showing 1-10 of 60 results
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6

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

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from United Kingdom 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 the United Kingdom to Phnom Penh

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

Currently, September is the cheapest month in which you can book a flight from United Kingdom to Phnom Penh (average of £689). Flying from United Kingdom to Phnom Penh in July is currently the most expensive (average of £1,232). 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 GB to PNH?

Find hourly flight availability from United Kingdom to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 July 2025.

When flying from United Kingdom to Phnom Penh, 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 Phnom Penh

Get insights into the airlines that provide service to Phnom Penh. 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 Phnom Penh. Reviews last updated 15 July 2025.
Check out reviews from past customers who have flown with China Airlines, Emirates, andSingapore Airlines from the United Kingdom to Phnom Penh 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 Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.2
Very Good
745 reviews
China Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Emirates
8.1
Very Good
3,288 reviews
China Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Singapore Airlines
8.1
Very Good
1,326 reviews
China Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
KLM
7.8
Good
1,372 reviews
China Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
Thai Airways
7.7
Good
336 reviews
China Airlines
8.2
Very Good
745 reviews
Check prices

Boarding

8.3

Food

7.8

Overall

8.2

Comfort

8.0

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Phnom Penh. 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 into for flights to Phnom Penh from United Kingdom?

    For a flight from United Kingdom to Phnom Penh, you will be flying into Pochentong. Phnom Penh Pochentong (PNH) is just 5.0 mi from the center of the city.

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

    One-way options have recently been found by users for as low as £321 on Shenzhen Airlines. Other airlines that offer cheap prices include Air China from £347 and China Eastern from £354 one-way.

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

    While some choose either London Gatwick - Phnom Penh Pochentong or London Stansted - Phnom Penh Pochentong, London Heathrow - Phnom Penh Pochentong is the most popular route from United Kingdom to Phnom Penh.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom to Phnom Penh 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 United Kingdom to Phnom Penh?

    Currently, September is the cheapest month in which you can book a flight from United Kingdom to Phnom Penh (average of £689). Flying from United Kingdom to Phnom Penh in July is currently the most expensive (average of £1,232). 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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Top 10 airlines flying from United Kingdom to Phnom Penh

Discover the top 10 airlines that operate flights from United Kingdom to Phnom Penh. 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 15 July 2025.
AirlineCheapestAverageFlexibilityOn-time
China SouthernCheapest£362Average£560FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Shenzhen AirlinesCheapest£382Average£456FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
Air ChinaCheapest£425Average£497FlexibilityNo cancel feeOn-time67%
Search Air China flights
Qatar AirwaysCheapest£462Average£781FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Etihad AirwaysCheapest£495Average£690FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
China EasternCheapest£511Average£591FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Singapore AirlinesCheapest£593Average£717FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Malaysia AirlinesCheapest£595Average£712FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
British AirwaysCheapest£615Average£787FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Vietnam AirlinesCheapest£656Average£718FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to Phnom Penh. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to Phnom Penh?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to Phnom Penh.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from United Kingdom to Phnom Penh, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from United Kingdom to Phnom Penh on Cheapflights with our Price Alert feature and get notified when better prices are available.

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