Find cheap flights from Ireland to Phnom Penh

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Phnom Penh

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Phnom Penh, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Phnom Penh, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 27% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Ireland to Phnom Penh

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Ireland to Phnom Penh that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Ireland to Phnom Penh

Multiple Airlines Logo
LHR-PNH
6232 mimulti-stop
Multiple Airlines Logo
PNH-LHR
6232 mimulti-stop
Multiple Airlines
Find Deal
Multiple Airlines Logo
LGW-PNH
6227 mimulti-stop
Multiple Airlines Logo
PNH-LGW
6227 mimulti-stop
Multiple Airlines
Find Deal
Useful Info

KAYAK's insights & trends for flights to Phnom Penh

Get data-powered insights and trends into flights to Phnom Penh to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Phnom Penh?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Phnom Penh, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Phnom Penh is October, where tickets cost £643 on average for return flights. On the other hand, the most expensive months are December and August, where the average cost of tickets from Ireland is £1,121 and £977 respectively. For one-way flights, the best month to travel is October with an average price of £643.

Good to know - Cheap tickets from Ireland to Phnom Penh

Low seasonJune
High seasonDecember
Best time to beat the crowds (7% less expensive on average)
Most popular time to fly (40% more expensive on average)

FAQs - booking Phnom Penh flights

  • How far is Phnom Penh Pochentong Airport from central Phnom Penh?

    The distance between Phnom Penh Pochentong Airport and the city centre of Phnom Penh is 5 miles.

  • What is the name of Phnom Penh’s airport?

    Phnom Penh is served by Phnom Penh Pochentong Airport, also commonly referred to as Phnom Penh Intl or Pochentong. The airport code is PNH.

  • What is the cheapest day to fly to Phnom Penh?

    Based on KAYAK data, the cheapest day to fly to Phnom Penh is Monday where round-trip tickets can be as cheap as £659. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are £1,024 on average.

  • How does KAYAK find such low prices on flights to Phnom Penh?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Phnom Penh.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Phnom Penh?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phnom Penh is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Phnom Penh?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phnom Penh with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Phnom Penh?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phnom Penh up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Phnom Penh?

    The cheapest time of day to fly to Phnom Penh is generally in the morning, when round-trip flights cost £1,081 on average. The most expensive time of day to fly to Phnom Penh is generally in the evening, which is peak travel time and where the average cost of a ticket is £1,304.

Top tips for finding cheap flights to Phnom Penh

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Phnom Penh flight deals.

Top airline flying from Ireland to Phnom Penh

 
See real verified KAYAK customer reviews for airlines flying to Phnom Penh. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to Phnom Penh. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Phnom Penh? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3584 reviews
7.9Crew
7.3Food
7.4Comfort
7.4Entertainment
7.5Boarding
Airline reviews

Worse fight I ever take since I start flying , still have even made home , and crew abandon us half way home . No water no food and no even anyone to answer our questions

2.0 MediocreAnge, May 2025DOH - ATL
Read more Qatar Airways reviews

Worse fight I ever take since I start flying , still have even made home , and crew abandon us half way home . No water no food and no even anyone to answer our questions

The staff was great and probably that's the single most thing that distinguished this particular Qatar flight from my average typical experience. They genuinely wanted to please you and do their best.

This trip was the most comfortable one I have ever experienced, the team was excellent and very helpful. I am so glad I picked Qatar Airways.

Seats very small and unable to pre purchase internet or seat upgrades

They didn't board by zones and it was a free for all. The 16 hour flight was the most excruciating experience of my life and the seats were TINY... with no leg space and my feet were swollen immediately. The food was so bad it was inedible.

Qatar Airways did a very good job. Flights were slightly delayed with boarding but pilots made up time by arrival. The food was OK, no better or worse than other airlines. Although it would be nice to have three meals during 16 hours flight instead of two.

The space was tight, hardly any leg room and the crew surprisingly were busy and did not take the time to attend to passengers, felt rushed. There was a delay for check in since the systems were down the airport staffs were accommodating

I recently travelled in Business Class with Qatar Airways, and overall, it was a pleasant experience. The cabin crew stood out for their kindness and professionalism, making the journey truly comfortable. The food exceeded expectations and was exceptional in both quality and presentation. The boarding staff was courteous, though I would like to mention that the staff member responsible for checking tickets during boarding could benefit from additional training to be more welcoming. A warm and hospitable approach would enhance the passenger experience significantly. However, one aspect of the journey was particularly frustrating. The in-flight entertainment system was disappointing, as the headphones provided did not work at all due to a loose connection. This significantly impacted the experience, especially since the flight also lacked Wi-Fi service. Addressing these issues would greatly enhance the overall travel experience. Lastly, I would suggest implementing a section-wise boarding process to streamline the boarding experience and minimise potential challenges. I appreciate the efforts Qatar Airways puts into delivering high-quality service and hope to see these improvements implemented in the future.

I purchased Qatar airways after seeing ads about its service. To my surprise Qatar is marketing gimmick and horrible airlines which I don’t recommend to anyone Flight was dirty including flight from Miami to Doha And Doha airport restrooms are dirty On top of this they use this pathetic cheap indigo From Doha to Hyderabad which I will never fly Also they lost one of my baggage in Indigo and still waiting to receive it. I will never travel Qatar and will never recommend

Worst air experience in whole life . Boarding and checking was hassle as they did 3 times. Crew team was clueless about passengers need. Despite of passengers raising hand , they were resetting the program

Everything you need to know for your flight to Phnom Penh

Information on the airport you'll fly into in Phnom Penh

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.