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£270+ 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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
— PNH
13 Jul — 20 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 8 July 2025.

Return from

£548

One-way from

£270

Popular in

December

Cheapest in

November

Average price

£795
Etihad Airways
  • Etihad Airways
  • 30/10-8/11
  • 2 total stops
  • 57h 40m total
  • London to Phnom Penh
25/8
  • 25/8
  • 3 total stops
  • 42h 55m total
  • London to Phnom Penh
Highest demand for flights based on searches. 0% potential increase in price.
Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
Average for return flights in July 2025

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 8 July 2025.

Thu 30/1019:20LHR - PNH
1 stop28h 10mEtihad Airways
Sat 8/1119:55PNH - LHR
1 stop29h 30mEtihad Airways
Deal found 6/7£548
Fri 26/920:25LHR - PNH
1 stop20h 40mAir China
Sat 4/1000:20PNH - LHR
1 stop26h 10mAir China
Deal found 6/7£554
Sat 15/1121:10LHR - PNH
1 stop30h 30mMultiple Airlines
Sat 22/1100:15PNH - LHR
1 stop24h 15mMultiple Airlines
Deal found 6/7£555
Wed 5/1117:00LGW - PNH
1 stop23h 15mChina Eastern
Tue 25/1100:15PNH - LGW
1 stop20h 45mChina Eastern
Deal found 6/7£556
Thu 30/1022:00LHR - PNH
1 stop18h 30mChina Southern
Sun 9/1108:00PNH - LHR
1 stop17h 15mChina Southern
Deal found 6/7£557
Sun 28/912:35LGW - PNH
2 stops40h 35mAir China
Sat 4/1012:15PNH - LGW
2 stops24h 20mAir China
Deal found 6/7£571
Fri 26/922:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Fri 3/1012:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Deal found 6/7£571
Thu 20/1121:00LHR - PNH
1 stop19h 15mChina Eastern
Wed 26/1100:15PNH - LHR
1 stop24h 15mChina Eastern
Deal found 6/7£587
Fri 26/912:00LGW - PNH
1 stop16h 40mMultiple Airlines
Fri 3/1000:10PNH - LGW
1 stop36h 30mMultiple Airlines
Deal found 6/7£608
Wed 5/1110:55LHR - PNH
1 stop24h 40mSingapore Airlines
Sun 1/319:45PNH - LHR
1 stop30h 25mSingapore Airlines
Deal found 7/7£620
Thu 28/806:00STN - PNH
3 stops36h 10mMultiple Airlines
Fri 5/911:05PNH - STN
3 stops33h 20mMultiple Airlines
Deal found 7/7£629
Thu 28/812:00LGW - PNH
1 stop20h 30mChina Southern
Fri 5/915:35PNH - LGW
2 stops32h 55mChina Southern
Deal found 7/7£657

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 8 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

LHR - PNH

LHRPNH

London Heathrow

Thu 30/10

19:20-06:30

1 stop28h 10m

Phnom Penh Pochentong

Sat 8/11

19:55-18:25

1 stop29h 30m

£548

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 26/9

20:25-23:05

1 stop20h 40m

Phnom Penh Pochentong

Sat 4/10

00:20-20:30

1 stop26h 10m

£554

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Sat 15/11

21:10-10:40

1 stop30h 30m

Phnom Penh Pochentong

Sat 22/11

00:15-17:30

1 stop24h 15m

£555

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 5/11

17:00-23:15

1 stop23h 15m

Phnom Penh Pochentong

Tue 25/11

00:15-14:00

1 stop20h 45m

£556

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 30/10

22:00-23:30

1 stop18h 30m

Phnom Penh Pochentong

Sun 9/11

08:00-18:15

1 stop17h 15m

£557

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Sun 28/9

12:35-11:10

2 stops40h 35m

Phnom Penh Pochentong

Sat 4/10

12:15-06:35

2 stops24h 20m

£571

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 26/9

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Fri 3/10

12:15-19:50

1 stop37h 35m

£571

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 20/11

21:00-23:15

1 stop19h 15m

Phnom Penh Pochentong

Wed 26/11

00:15-17:30

1 stop24h 15m

£587

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Fri 26/9

12:00-10:40

1 stop16h 40m

Phnom Penh Pochentong

Fri 3/10

00:10-06:40

1 stop36h 30m

£608

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 5/11

10:55-18:35

1 stop24h 40m

Phnom Penh Pochentong

Sun 1/3

19:45-19:10

1 stop30h 25m

£620

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 40 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 35 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 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 8 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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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.

Comfort

8.0

Boarding

8.1

Crew

8.3

Food

7.8

Entertainment

8.2

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 £73.

  • How much is a return flight to Phnom Penh?

    A return flight to Phnom Penh will typically cost around £106, however they can be found for as little as £100.

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

    For those looking to save time traveling to Phnom Penh, London offers the quickest one-way flight (18 hours 15 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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Cheapflights does show flights with no change fees to all users. To see these options for flights to Phnom Penh, users can toggle the no change fees filter when performing a flight search.

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

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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