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£263+ Cheap flights to Phnom Penh

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 20/9. Fares are subject to change and may not be available on all flights or dates of travel.
— PNH
10 Jul — 17 Jul1
1 adult

Flights to Phnom Penh in 2025

Find the latest flights to Phnom Penh in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 5 July 2025.

Return from

£542

One-way from

£263

Popular in

December

Cheapest in

November

Average price

£793
China Eastern
  • China Eastern
  • 21/11-29/12
  • 3 total stops
  • 49h 40m total
  • London to Phnom Penh
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20/9
  • 20/9
  • 3 total stops
  • 27h 20m total
  • London to Phnom Penh
Search Deals
Highest demand for flights based on searches. 0% potential increase in price.
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for return flights in July 2025
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Find flight deals to Phnom Penh

Cheapest flights to Phnom Penh
Explore the most affordable flight options available to Phnom Penh. Find the lowest fares based on data from user searches, with prices last updated on 5 July 2025.

Fri 21/1117:00LGW - PNH
1 stop23h 15mChina Eastern
Mon 29/1211:05PNH - LGW
2 stops26h 25mChina Eastern
Deal found 3/7£542
Wed 24/1221:30LHR - PNH
2 stops30h 20mChina Southern
Tue 20/108:00PNH - LHR
1 stop17h 15mChina Southern
Deal found 5/7£557
Tue 9/920:25LHR - PNH
2 stops32h 45mAir China
Tue 14/1012:15PNH - LHR
2 stops62h 15mAir China
Deal found 3/7£576
Wed 5/1116:00LGW - PNH
1 stop34h 45mMultiple Airlines
Wed 12/1119:55PNH - LGW
1 stop29h 30mMultiple Airlines
Deal found 4/7£580
Mon 1/1221:10LHR - PNH
1 stop30h 30mMultiple Airlines
Wed 24/1211:55PNH - LHR
1 stop37h 20mMultiple Airlines
Deal found 4/7£594
Tue 9/921:20LHR - PNH
3 stops56h 15mChina Eastern
Tue 14/1018:50PNH - LHR
2 stops29h 50mChina Eastern
Deal found 3/7£599
Tue 4/1122:05LHR - PNH
1 stop37h 30mSingapore Airlines
Tue 24/314:50PNH - LHR
1 stop35h 20mSingapore Airlines
Deal found 3/7£616
Mon 17/1107:30STN - PNH
3 stops28h 30mMultiple Airlines
Mon 23/214:50PNH - STN
2 stops28h 15mMultiple Airlines
Deal found 4/7£620
Fri 19/912:35LGW - PNH
1 stop28h 30mAir China
Thu 2/1000:20PNH - LGW
1 stop36h 15mAir China
Deal found 4/7£634
Sun 9/1109:20LGW - PNH
1 stop26h 15mSingapore Airlines
Mon 17/1114:50PNH - LGW
1 stop22h 35mSingapore Airlines
Deal found 5/7£636
Fri 29/812:00LGW - PNH
1 stop20h 30mChina Southern
Sun 14/915:35PNH - LGW
1 stop21h 15mChina Southern
Deal found 3/7£675
Sun 9/1120:15STN - PNH
2 stops37h 20mEmirates
Mon 17/1120:35PNH - STN
2 stops22h 30mEmirates
Deal found 5/7£682

Cheapflights Fare Finder

Locate flights to Phnom Penh that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 5 July 2025.
Use the filters below to find and compare flights to Phnom Penh that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 21/11

17:00-23:15

1 stop23h 15m

Phnom Penh Pochentong

Mon 29/12

11:05-06:30

2 stops26h 25m

£542

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 24/12

21:30-10:50

2 stops30h 20m

Phnom Penh Pochentong

Tue 20/1

08:00-18:15

1 stop17h 15m

£557

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 9/9

20:25-11:10

2 stops32h 45m

Phnom Penh Pochentong

Tue 14/10

12:15-20:30

2 stops62h 15m

£576

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 5/11

16:00-09:45

1 stop34h 45m

Phnom Penh Pochentong

Wed 12/11

19:55-18:25

1 stop29h 30m

£580

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 1/12

21:10-10:40

1 stop30h 30m

Phnom Penh Pochentong

Wed 24/12

11:55-18:15

1 stop37h 20m

£594

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 9/9

21:20-11:35

3 stops56h 15m

Phnom Penh Pochentong

Tue 14/10

18:50-18:40

2 stops29h 50m

£599

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 4/11

22:05-18:35

1 stop37h 30m

Phnom Penh Pochentong

Tue 24/3

14:50-19:10

1 stop35h 20m

£616

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

£634

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Sun 9/11

09:20-18:35

1 stop26h 15m

Phnom Penh Pochentong

Mon 17/11

14:50-06:25

1 stop22h 35m

£636

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 29/8

12:00-14:30

1 stop20h 30m

Phnom Penh Pochentong

Sun 14/9

15:35-06:50

1 stop21h 15m

£675

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 37 results
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Best time to book a flight to Phnom Penh

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

When is the best time to book a flight to Phnom Penh?

Use this chart to determine the optimal time to book a return flight from London to Phnom Penh. Price data was last updated on 27 June 2025.

The price you pay for your flight to Phnom Penh may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

How long is the flight to Phnom Penh?

On average, a flight from London to Phnom Penh takes 20 hours 51 minutes. Flights to Phnom Penh from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Phnom Penh?

Use this chart to determine the cheapest time to fly return from London to Phnom Penh. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to Phnom Penh should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday afternoons, when prices are usually at their highest.

What are the most popular airlines that fly to Phnom Penh?

The most popular airlines flying from London to Phnom Penh are China Southern, Air China and Singapore Airlines.

China Southern
China Southern
From £487
Air China
Air China
From £565
Singapore Airlines
Singapore Airlines
From £797
Thai Airways
Thai Airways
From £1,007

What are the cheapest airlines that fly to Phnom Penh?

The cheapest airlines flying from London to Phnom Penh are China Southern, Shenzhen Airlines and Air China.

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 5 July 2025.
See what other customers who have flown with Emirates, Singapore Airlines, andKLM to Cambodia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
Emirates
8.1
Very Good
3,284 reviews
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
Singapore Airlines
8.1
Very Good
1,320 reviews
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
KLM
7.8
Good
1,363 reviews
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
China Southern
7.6
Good
100 reviews
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.
SWISS
7.5
Good
1,649 reviews
Emirates
8.1
Very Good
3,284 reviews
Check prices

Crew

8.3

Entertainment

8.2

Boarding

8.1

Food

7.8

Comfort

8.0

Overall

8.1

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2025

KTM - DXB

Lost 7 pieces of luggage and fly Dubai doesn’t seem to care.

FAQs about flying to Phnom Penh

Getting around Phnom Penh

Walking around the centre of Phnom Penh is an enjoyable way to get a feel for the city, but to get around the suburbs, travelling by tuk-tuk or taxi is advisable. You can rent motorbikes at a very cheap rate as well, if you are confident about dodging traffic (and don’t forget to rent a helmet as well). However, a more sedate form of local transport is the fleet of three-wheeled cycle rickshaws.

Getting from the Airport to the City

There will be taxis gathered directly outside the arrivals terminal once you have landed on your flight to Phnom Penh, and they should charge a flat rate to get you into the city. For an even cheaper ride, leave the airport and catch a tuk-tuk or one of the many motorcycles that will ferry those with less luggage into town. There is also a city bus that will take you straight to the Central Market.

  • What airport do you fly into for flights to Phnom Penh?

    Travelers will need to book flights to Pochentong (PNH) if they wish to fly to Phnom Penh. The Phnom Penh airport is 5.0 mi from the city center.

  • Can I find cheaper flights to Phnom Penh if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Phnom Penh on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Phnom Penh?

    Based on reviews from Cheapflights users, China Southern is rated the highest out of the airlines that fly to Phnom Penh.

  • What is the cheapest airport to fly to in Phnom Penh?

    Phnom Penh Pochentong is currently the cheapest airport to fly to in Phnom Penh. One-way flights to Phnom Penh Pochentong typically cost £33, while return flights cost around £77.

  • How much is a return flight to Phnom Penh?

    A return flight to Phnom Penh will typically cost around £120, however they can be found for as little as £105.

  • Where does the fastest flight to Phnom Penh depart from?

    For those looking to save time traveling to Phnom Penh, Manchester offers the quickest one-way flight (17 hours 5 minutes).

  • Does Phnom Penh Pochentong have car hire?

    Yes. Those touching down at Phnom Penh Pochentong can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Phnom Penh Pochentong?

    Yes. Phnom Penh Pochentong has hotels nearby for those requiring accommodations. Chinese Guesthouse is the closest property to Phnom Penh Pochentong (0.0 mi away from Phnom Penh Pochentong).

See more FAQs

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Yes, Cheapflights offers price alerts on Phnom Penh flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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