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£961+ 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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
— PNH
27 Mar — 3 Apr1
1 adult
1 adult, Economy, 0 bags

Flights to Phnom Penh in 2026

Enter your travel dates to find the best prices.

One-way flights to Phnom Penh
Search for one-way flight options to Phnom Penh. Find affordable one-way fares based on user searches. Data last updated 25 February 2026.

Tue 14/719:25
LHR
-
PNH
2 stops32h 35m
British Airways
Deal found 24/2£961

Find flight deals to Phnom Penh

Find the latest flights to Phnom Penh in 2026, 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 February 2026.

One-way from

£961

Popular in

July

Cheapest in

November

Average price

£582
British Airways
  • British Airways
  • 14/7
  • 2 total stops
  • 32h 35m total
  • London to Phnom Penh
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£113 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£22 potential savings vs. average return price).
Search Deals
Average for return flights in February 2026
Search Deals

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 February 2026.
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 14/7

19:25-10:00

2 stops32h 35m

£961

Flights are sorted by cheapest return flights first.

Deals found on 24/2

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 20 February 2026.

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 76 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 21 hours 4 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.

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

The most popular airlines flying from London to Phnom Penh are China Southern, Etihad Airways and Thai Airways.

China Southern
China Southern
From £361
Etihad Airways
Etihad Airways
From £512
Thai Airways
Thai Airways
From £758
Singapore Airlines
Singapore Airlines
From £560

What are the cheapest airlines that fly to Phnom Penh?

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

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 February 2026.
See what other customers who have flown with Thai Airways, Etihad Airways, andChina Southern to Cambodia have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.8
Good
385 reviews
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Etihad Airways
7.3
Good
1,416 reviews
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
China Southern
7.3
Good
137 reviews
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Malaysia Airlines
7.3
Good
293 reviews
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Air China
7.2
Good
139 reviews
Thai Airways
7.8
Good
385 reviews
Check prices

Crew

8.4

Boarding

7.9

Entertainment

6.8

Comfort

7.6

Food

7.4

Overall

7.8

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

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 £80, while return flights cost around £78.

  • How much is a return flight to Phnom Penh?

    A return flight to Phnom Penh will typically cost around £86, however they can be found for as little as £78.

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

    For those looking to save time traveling to Phnom Penh, Newcastle upon Tyne offers the quickest one-way flight (18 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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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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