Question 1

What is the cheapest month to book a flight from Southampton to Phnom Penh?

Accepted Answer

Currently, September is the cheapest month in which you can book a flight from Southampton to Phnom Penh (average of £689). Flying from Southampton to Phnom Penh in July is currently the most expensive (average of £1,232). 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.

Question 2

E

Accepted Answer

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.

Question 3

E

Accepted Answer

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).

Question 4

How far in advance should I book a flight from Southampton to Phnom Penh?

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 54 days in advance, which can save you up to 16% on flights from Southampton to Phnom Penh compared to booking the week you need them. Waiting 54 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £549. For sooner than that we have options available in the next 3 days from £873.

Question 5

What is the cheapest month to fly from Southampton to Phnom Penh?

Accepted Answer

November can be a great time to fly to Phnom Penh from Southampton with a flight ticket averaging about £654. Cheapflights users have found deals in the month of November for as cheap as £400. The most expensive prices can be found in the month of July.

Question 6

What is the cheapest time of day to fly from SOU to PNH?

Accepted Answer

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Southampton to Phnom Penh as you normally would.

Question 7

Can I find deals for flights from Southampton to Phnom Penh that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Southampton to Phnom Penh flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 8

How can I find direct flights from Southampton to Phnom Penh?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Southampton to Phnom Penh.

Question 9

Can I find deals for business class flights from Southampton to Phnom Penh?

Accepted Answer

Yes. Cheapflights offers flight deals from Southampton to Phnom Penh by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 10

How does Cheapflights help users find flights from Southampton to Phnom Penh?

Accepted Answer

When you search for this flight from Southampton 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 flight for you.

Question 11

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

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Southampton to Phnom Penh by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 12

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

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Southampton to Phnom Penh flexibly with Cheapflights today.

Question 13

Can Cheapflights notify me if prices for flights from Southampton to Phnom Penh become cheaper?

Accepted Answer

Yes! Start tracking prices for Southampton to Phnom Penh flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

Round-trip from	£757
Popular in	July
Cheapest in	November
Average price	£804

Cheap flights from Southampton to Phnom Penh from £757

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/10. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from Southampton to Phnom PenhExplore the most affordable flight options available from Southampton to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Explore the most affordable flight options available from Southampton to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

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Best time to book a flight from Southampton to Phnom Penh

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Everything you need to know about your flight from Southampton to Phnom Penh

What is the cheapest month to book a flight from Southampton to Phnom Penh?

Related info for your journey

Find useful and relevant information for your journey from Southampton to Phnom Penh. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Southampton to Phnom Penh that include hotel bookings?

How can I find direct flights from Southampton to Phnom Penh?

Can I find deals for business class flights from Southampton to Phnom Penh?

What is the cheapest month to book a flight from Southampton to Phnom Penh?

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How does Cheapflights help users find flights from Southampton to Phnom Penh?

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

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

Can Cheapflights notify me if prices for flights from Southampton to Phnom Penh become cheaper?

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Cheapest flights from Southampton to Phnom Penh
Explore the most affordable flight options available from Southampton to Phnom Penh. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.