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£277+ 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 20/4. Fares are subject to change and may not be available on all flights or dates of travel.
— PNH
30 Mar — 6 Apr1
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 25 March 2025.

Return from

£503

One-way from

£277

Popular in

August

Cheapest in

November

Average price

£596
Air China
  • Air China
  • 7/6-21/6
  • 2 total stops
  • 46h 50m total
  • London to Phnom Penh
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20/4
  • 20/4
  • 3 total stops
  • 46h 15m total
  • London to Phnom Penh
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£58 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
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Average for return flights in March 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 25 March 2025.

Sat 7/620:25LHR - PNH
1 stop20h 40mAir China
Sat 21/600:20PNH - LHR
1 stop26h 10mAir China
Deal found 24/3£503
Thu 8/521:00LHR - PNH
2 stops21h 10mChina Southern
Thu 15/515:35PNH - LHR
1 stop33h 25mChina Southern
Deal found 23/3£506
Mon 5/518:05LGW - PNH
1 stop23h 10mChina Eastern
Mon 26/500:10PNH - LGW
1 stop20h 50mChina Eastern
Deal found 24/3£535
Mon 5/521:20LHR - PNH
1 stop19h 55mChina Eastern
Mon 26/500:10PNH - LHR
1 stop24h 30mChina Eastern
Deal found 24/3£541
Mon 14/422:05LHR - PNH
1 stop31h 05mShenzhen Airlines
Thu 1/512:15PNH - LHR
1 stop37h 45mShenzhen Airlines
Deal found 24/3£554
Wed 23/416:15LHR - PNH
2 stops20h 00mMultiple Airlines
Wed 7/511:05PNH - LHR
3 stops33h 10mMultiple Airlines
Deal found 24/3£565
Thu 20/1109:20LGW - PNH
1 stop26h 15mSingapore Airlines
Thu 4/1209:35PNH - LGW
1 stop27h 50mSingapore Airlines
Deal found 24/3£601
Wed 3/909:25LHR - PNH
1 stop26h 15mSingapore Airlines
Wed 17/918:55PNH - LHR
1 stop30h 35mSingapore Airlines
Deal found 24/3£623
Wed 23/406:30STN - PNH
3 stops32h 20mMultiple Airlines
Wed 7/520:50PNH - STN
3 stops30h 35mMultiple Airlines
Deal found 24/3£656
Thu 27/309:15LGW - PNH
2 stops26h 45mMultiple Airlines
Wed 2/412:40PNH - LGW
3 stops24h 00mMultiple Airlines
Deal found 24/3£657
Wed 23/416:00LHR - PNH
2 stops18h 15mBritish Airways
Wed 7/518:20PNH - LHR
1 stop17h 05mBritish Airways
Deal found 24/3£682
Wed 17/918:55LHR - PNH
2 stops36h 05mVietnam Airlines
Wed 1/1020:45PNH - LHR
1 stop26h 10mVietnam Airlines
Deal found 24/3£686

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 25 March 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

Sat 7/6

20:25-23:05

1 stop20h 40m

Phnom Penh Pochentong

Sat 21/6

00:20-20:30

1 stop26h 10m

£503

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Thu 8/5

21:00-00:10

2 stops21h 10m

Phnom Penh Pochentong

Thu 15/5

15:35-19:00

1 stop33h 25m

£506

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Mon 5/5

18:05-23:15

1 stop23h 10m

Phnom Penh Pochentong

Mon 26/5

00:10-15:00

1 stop20h 50m

£535

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 5/5

21:20-23:15

1 stop19h 55m

Phnom Penh Pochentong

Mon 26/5

00:10-18:40

1 stop24h 30m

£541

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Mon 14/4

22:05-11:10

1 stop31h 05m

Phnom Penh Pochentong

Thu 1/5

12:15-20:00

1 stop37h 45m

£554

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 23/4

16:15-18:15

2 stops20h 00m

Phnom Penh Pochentong

Wed 7/5

11:05-14:15

3 stops33h 10m

£565

LondonPhnom Penh

LHR - PNH

LHRPNH

London Heathrow

Wed 3/9

09:25-17:40

1 stop26h 15m

Phnom Penh Pochentong

Wed 17/9

18:55-19:30

1 stop30h 35m

£623

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 17/9

10:15-17:40

1 stop25h 25m

Phnom Penh Pochentong

Wed 1/10

09:35-06:25

1 stop26h 50m

£649

LondonPhnom Penh

STN - PNH

STNPNH

London Stansted

Wed 23/4

06:30-20:50

3 stops32h 20m

Phnom Penh Pochentong

Wed 7/5

20:50-21:25

3 stops30h 35m

£656

LondonPhnom Penh

LGW - PNH

LGWPNH

London Gatwick

Wed 23/4

08:55-08:50

2 stops17h 55m

Phnom Penh Pochentong

Thu 15/5

12:40-15:10

3 stops32h 30m

£658

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 47 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 21 March 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 41 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 £798

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 25 March 2025.
To help decide which airline to fly to Phnom Penh, see what other customers have to say about China Airlines, Singapore Airlines and Emirates. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very Good
722 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Singapore Airlines
8.1
Very Good
1,284 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Emirates
8.0
Very Good
3,190 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
KLM
7.8
Good
1,318 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Thai Airways
7.8
Good
316 reviews
China Airlines
8.2
Very Good
722 reviews
Check prices

Boarding

8.3

Comfort

8.0

Overall

8.2

Food

7.8

Crew

8.5

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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 £26, while return flights cost around £69.

  • How much is a return flight to Phnom Penh?

    A return flight to Phnom Penh will typically cost around £135, however they can be found for as little as £90.

  • 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 (17 hours 0 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.

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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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