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Cheap flights from the United Kingdom to Phnom Penh from £294

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 16/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PNH
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£477

One-way from

£316

Popular in

December

Cheapest in

November

Average price

£605
4/9-26/10
  • 4/9-26/10
  • 4 total stops
  • 49h 15m total
  • United Kingdom to Phnom Penh
Search Deals
Shenzhen Airlines
  • Shenzhen Airlines
  • 1/10
  • 1 total stop
  • 31h 05m total
  • United Kingdom to Phnom Penh
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Thu 4/914:00MAN - PNH
2 stops28h 10mMultiple Airlines
Sun 26/1008:00PNH - MAN
2 stops21h 05mMultiple Airlines
Deal found 11/6£477
Fri 7/1121:30LHR - PNH
2 stops34h 05mChina Southern
Mon 8/1208:00PNH - LHR
1 stop17h 15mChina Southern
Deal found 10/6£505
Mon 3/1120:55LHR - PNH
1 stop14h 35mEtihad Airways
Mon 17/1107:55PNH - LHR
1 stop35h 10mEtihad Airways
Deal found 11/6£506
Mon 16/622:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Sun 22/612:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Deal found 11/6£509
Sun 2/1117:40LHR - PNH
1 stop22h 30mAir China
Sat 29/1100:25PNH - LHR
1 stop22h 30mAir China
Deal found 10/6£514
Sun 15/619:00LGW - PNH
3 stops40h 50mChina Eastern
Sun 22/612:40PNH - LGW
2 stops48h 00mChina Eastern
Deal found 11/6£531
Fri 20/612:00LGW - PNH
1 stop16h 40mChina Southern
Wed 2/715:35PNH - LGW
1 stop21h 30mChina Southern
Deal found 10/6£559
Fri 19/912:35LGW - PNH
1 stop28h 30mAir China
Thu 2/1000:20PNH - LGW
1 stop36h 15mAir China
Deal found 11/6£560
Sun 15/621:20LHR - PNH
1 stop19h 55mChina Eastern
Sun 22/612:40PNH - LHR
2 stops60h 00mChina Eastern
Deal found 11/6£562
Fri 7/1121:10LHR - PNH
1 stop31h 05mMultiple Airlines
Sun 23/1100:15PNH - LHR
1 stop24h 15mMultiple Airlines
Deal found 12/6£564
Mon 8/1206:35LGW - PNH
2 stops19h 10mMultiple Airlines
Sun 22/300:15PNH - LGW
1 stop37h 15mMultiple Airlines
Deal found 10/6£573
Fri 5/1210:25LHR - PNH
1 stop16h 25mMalaysia Airlines
Thu 15/118:30PNH - LHR
1 stop18h 05mMalaysia Airlines
Deal found 11/6£591

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 13 June 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

Thu 4/9

14:00-00:10

2 stops28h 10m

Phnom Penh Pochentong

Sun 26/10

08:00-22:05

2 stops21h 05m

£477

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 7/11

21:30-14:35

2 stops34h 05m

Phnom Penh Pochentong

Mon 8/12

08:00-18:15

1 stop17h 15m

£505

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 3/11

20:55-18:30

1 stop14h 35m

Phnom Penh Pochentong

Mon 17/11

07:55-12:05

1 stop35h 10m

£506

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sun 2/11

17:40-23:10

1 stop22h 30m

Phnom Penh Pochentong

Sat 29/11

00:25-15:55

1 stop22h 30m

£514

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 3/9

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Sun 21/9

12:15-19:50

1 stop37h 35m

£541

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Mon 23/6

11:35-23:15

1 stop29h 40m

Phnom Penh Pochentong

Sat 5/7

18:50-15:10

3 stops50h 20m

£551

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 19/11

09:20-13:50

1 stop21h 30m

Phnom Penh Pochentong

Sun 28/12

19:45-06:25

1 stop17h 40m

£555

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 19/9

12:35-23:05

1 stop28h 30m

Phnom Penh Pochentong

Thu 2/10

00:20-06:35

1 stop36h 15m

£560

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 7/11

21:10-11:15

1 stop31h 05m

Phnom Penh Pochentong

Sun 23/11

00:15-17:30

1 stop24h 15m

£564

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Mon 23/6

12:00-14:30

1 stop20h 30m

Phnom Penh Pochentong

Mon 30/6

08:00-18:30

2 stops40h 30m

£564

Flights are sorted by cheapest return flights first.

Deals found on 10/6

Showing 1-10 of 60 results
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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 £1,203). 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 13 June 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.

Rainfall in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Phnom Penh ranges from 0.0 - 250.0 inches per month. October is typically the wettest month, when rainfall can reach 250.0 mm. January is typically the driest time to visit Phnom Penh when rainfall is around 0.0 mm.

Temperature in Phnom Penh by month

Plan your trip to Phnom Penh by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Phnom Penh, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 25.0 C).

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 13 June 2025.
Get a feel of what it's like to fly with Emirates, Singapore Airlines and KLM from United Kingdom to Phnom Penh by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.
Emirates
8.1
Very Good
3,265 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.
Singapore Airlines
8.1
Very Good
1,302 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.
Austrian Airlines
7.6
Good
802 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.
SWISS
7.5
Good
1,624 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.8

Overall

8.1

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
6.0
Good

Anonymous,Mar 2025

DXB - BCN

One person Mr Chopra was great. Constantly trying to manage a lot with a smile. Others not so great. The forgot meals on some tables. Service delayed. Experience is going down a bit.

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 £316 on Shenzhen Airlines. Other airlines that offer cheap prices include Air China from £350 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 City - 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 £1,203). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Shenzhen AirlinesCheapest£378Average£455FlexibilityNo cancel feeOn-time63%
Search Shenzhen Airlines flights
China SouthernCheapest£397Average£532FlexibilityNo cancel feeOn-time69%
Search China Southern flights
Air ChinaCheapest£421Average£490FlexibilityNo cancel feeOn-time67%
Search Air China flights
China EasternCheapest£507Average£722FlexibilityNo cancel feeOn-time62%
Search China Eastern flights
Etihad AirwaysCheapest£512Average£679FlexibilityNo cancel feeOn-time75%
Search Etihad Airways flights
Singapore AirlinesCheapest£589Average£711FlexibilityNo cancel feeOn-time81%
Search Singapore Airlines flights
Malaysia AirlinesCheapest£590Average£718FlexibilityNo cancel feeOn-time67%
Search Malaysia Airlines flights
British AirwaysCheapest£609Average£778FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Qatar AirwaysCheapest£634Average£797FlexibilityNo cancel feeOn-time68%
Search Qatar Airways flights
Vietnam AirlinesCheapest£650Average£742FlexibilityNo cancel feeOn-time81%
Search Vietnam Airlines flights

Fly with Cheapflights

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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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