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£244+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
— PNH
4 May — 11 May1
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 29 April 2025.

Return from

£471

One-way from

£244

Popular in

August

Cheapest in

November

Average price

£765
China Southern
  • China Southern
  • 13/5-27/5
  • 2 total stops
  • 47h 30m total
  • London to Phnom Penh
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11/5
  • 11/5
  • 3 total stops
  • 44h 50m total
  • London to Phnom Penh
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£59 potential increase over avg. return price).
Search Deals
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 April 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 29 April 2025.

Tue 13/522:10LHR - PNH
1 stop30h 30mChina Southern
Tue 27/508:00PNH - LHR
1 stop17h 00mChina Southern
Deal found 29/4£471
Sun 9/1120:25LHR - PNH
1 stop19h 45mAir China
Sat 6/1200:25PNH - LHR
1 stop22h 30mAir China
Deal found 29/4£478
Wed 4/611:35LGW - PNH
1 stop29h 40mChina Eastern
Thu 12/600:10PNH - LGW
1 stop21h 00mChina Eastern
Deal found 29/4£497
Wed 4/622:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Fri 13/612:15PNH - LHR
1 stop37h 35mShenzhen Airlines
Deal found 29/4£500
Thu 12/621:20LHR - PNH
1 stop19h 55mChina Eastern
Wed 18/600:10PNH - LHR
1 stop24h 30mChina Eastern
Deal found 28/4£529
Thu 12/607:05STN - PNH
3 stops33h 15mMultiple Airlines
Wed 18/600:10PNH - STN
3 stops29h 45mMultiple Airlines
Deal found 28/4£530
Fri 13/622:05LHR - PNH
1 stop31h 05mMultiple Airlines
Thu 19/600:20PNH - LHR
1 stop26h 10mMultiple Airlines
Deal found 29/4£551
Thu 22/511:25LGW - PNH
2 stops41h 45mMultiple Airlines
Sat 7/600:20PNH - LGW
1 stop36h 15mMultiple Airlines
Deal found 28/4£551
Tue 11/1109:00LHR - PNH
2 stops42h 05mEtihad Airways
Thu 4/1219:25PNH - LHR
2 stops23h 40mEtihad Airways
Deal found 29/4£554
Tue 13/511:25LGW - PNH
2 stops41h 45mAir China
Tue 27/500:20PNH - LGW
2 stops36h 35mAir China
Deal found 28/4£558
Thu 12/611:00LHR - PNH
1 stop17h 00mMalaysia Airlines
Thu 19/618:20PNH - LHR
1 stop17h 35mMalaysia Airlines
Deal found 28/4£587
Thu 12/611:25LHR - PNH
1 stop24h 15mSingapore Airlines
Sun 29/618:55PNH - LHR
1 stop26h 50mSingapore Airlines
Deal found 28/4£624

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 29 April 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

Tue 13/5

22:10-10:40

1 stop30h 30m

Phnom Penh Pochentong

Tue 27/5

08:00-19:00

1 stop17h 00m

£471

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 4/6

11:35-23:15

1 stop29h 40m

Phnom Penh Pochentong

Thu 12/6

00:10-15:10

1 stop21h 00m

£497

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 4/6

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Fri 13/6

12:15-19:50

1 stop37h 35m

£500

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 12/6

21:20-23:15

1 stop19h 55m

Phnom Penh Pochentong

Wed 18/6

00:10-18:40

1 stop24h 30m

£529

LondonPhnom Penh

STN - PNH

STNPNH

London Stansted

Thu 12/6

07:05-22:20

3 stops33h 15m

Phnom Penh Pochentong

Wed 18/6

00:10-23:55

3 stops29h 45m

£530

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Fri 13/6

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Thu 19/6

00:20-20:30

1 stop26h 10m

£551

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Thu 22/5

11:25-11:10

2 stops41h 45m

Phnom Penh Pochentong

Sat 7/6

00:20-06:35

1 stop36h 15m

£551

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Tue 10/6

22:40-11:10

2 stops30h 30m

Phnom Penh Pochentong

Tue 1/7

12:15-20:00

1 stop37h 45m

£556

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Tue 13/5

11:25-11:10

2 stops41h 45m

Phnom Penh Pochentong

Tue 27/5

00:20-06:55

2 stops36h 35m

£558

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 12/6

11:00-10:00

1 stop17h 00m

Phnom Penh Pochentong

Thu 19/6

18:20-05:55

1 stop17h 35m

£587

Flights are sorted by cheapest return flights first.

Deals found on 28/4

Showing 1-10 of 50 results
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5

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 25 April 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 19 hours 56 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 £539

Air China

Air China

From £411

Singapore Airlines

Singapore Airlines

From £815

Thai Airways

Thai Airways

From £1,014

What are the cheapest airlines that fly to Phnom Penh?

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

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 29 April 2025.
To help decide which airline to fly to Phnom Penh, see what other customers have to say about Singapore Airlines, Emirates and KLM. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Singapore Airlines
8.1
Very Good
1,292 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Emirates
8.0
Very Good
3,213 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
KLM
7.8
Good
1,334 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
Thai Airways
7.7
Good
325 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles
SWISS
7.5
Good
1,588 reviews
Singapore Airlines
8.1
Very Good
1,292 reviews
Check prices

Comfort

7.9

Entertainment

8.0

Boarding

8.2

Overall

8.1

Crew

8.6

Food

7.7

Reviews

1 / 20
6.0
Good

Gina,Dec 2024

BLR - SIN

Overall the experience was good. First flight of 17 hours had no entertainment since Singapore airline has technical issues. Was informed that passengers would get a $350 voucher for future flight. Uncertain how that is being distributed but would like to understand if an email is required from my end or if it is an automatic email sent to me by Singapore Airlines. -Gina Robles

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, Air China 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 £24, while return flights cost around £41.

  • How much is a return flight to Phnom Penh?

    A return flight to Phnom Penh will typically cost around £81, however they can be found for as little as £55.

  • 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 (16 hours 25 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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When you search for this flight to Phnom Penh, 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 best flight for you.

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

Cheapflights helps you find that perfect flight to Phnom Penh by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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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