Cheap flights from Portsmouth to Phnom Penh from £994
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Phnom Penh
Keep the following information in mind while searching for Portsmouth to Phnom Penh flight deals. Data was last updated 15 June 2025.
Find flight deals from Portsmouth to Phnom Penh
Cheapest flights from Portsmouth to Phnom PenhExplore the most affordable flight options available from Portsmouth to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2025.
Explore the most affordable flight options available from Portsmouth to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Portsmouth to Phnom Penh that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 June 2025.
Use the filters below to find and compare flights from Portsmouth to Phnom Penh that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonPhnom Penh
SOU - PNH
SOUPNH
Southampton Eastleigh
Wed 30/7
09:20-22:20
3 stops31h 00m
Phnom Penh Pochentong
Wed 6/8
15:35-20:15
3 stops34h 40m
Best time to book a flight from Portsmouth to Phnom Penh
Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Phnom Penh
What is the cheapest month to book a flight from Portsmouth to Phnom Penh?
Currently, September is the cheapest month in which you can book a flight from Portsmouth to Phnom Penh (average of £689). Flying from Portsmouth to Phnom Penh in July is currently the most expensive (average of £1,203). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from P0R to PNH?
Find hourly flight availability from Portsmouth to Phnom Penh. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 June 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Phnom Penh as you normally would.
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).
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Portsmouth to Phnom Penh
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Phnom Penh
Discover the top 10 airlines that operate flights from Portsmouth to Phnom Penh. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 15 June 2025.
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How does Cheapflights help users find flights from Portsmouth to Phnom Penh?
Cheapflights helps you search for flights from Portsmouth to Phnom Penh via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Phnom Penh?
Cheapflights helps you find that perfect flight to Phnom Penh from Portsmouth 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 from Portsmouth to Phnom Penh with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Phnom Penh, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Portsmouth to Phnom Penh become cheaper?
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!