How do most travelers feel about Singapore Airlines?

1,585 Cheapflights users have left reviews for Singapore Airlines and have rated the airline 8.2/10. If you are looking to travel from Sydney to Phnom Penh on Singapore Airlines, input your dates in the form above for our best prices!

How far ahead should I book a flight from Sydney to Phnom Penh with Singapore Airlines?

Booking with Singapore Airlines 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sydney to Phnom Penh. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sydney to Phnom Penh with Singapore Airlines?

Currently, the most affordable month to book a Singapore Airlines flight from Sydney to Phnom Penh in January, with an average price of $834. Conversely, traveling with Singapore Airlines from Sydney to Phnom Penh in December will be the most expensive, with an average cost of $1,770. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

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.

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).

Find Singapore Airlines flights from Sydney to Phnom Penh

How do most travelers feel about Singapore Airlines?
1,585 Cheapflights users have left reviews for Singapore Airlines and have rated the airline 8.2/10. If you are looking to travel from Sydney to Phnom Penh on Singapore Airlines, input your dates in the form above for our best prices!

Singapore Airlines flights from Sydney to Phnom Penh in 2026

Popular in	December
Cheapest in	February
Average price (all airlines)	$911

Highest demand for flights from Sydney Kingsford Smith to Phnom Penh Techo Intl; 19% potential price increase.

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Best time to find cheap flights from Sydney Kingsford Smith to Phnom Penh Techo Intl; 6% potential price drop.

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Average price for all Sydney Kingsford Smith to Phnom Penh Techo Intl flights (one-way and round-trip).

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Prices

The best time to book a flight to Phnom Penh with Singapore Airlines is 56 days before departure. On average, fares are higher if you book 2 days before departure.

Which month is the cheapest to fly Economy class from Sydney to Phnom Penh?

For Economy class flights, the cheapest month to fly this route is January. The most expensive months are December and June.

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney with our price prediction graph.

SYD-KTI

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How do most travelers feel about Singapore Airlines?

Singapore Airlines flights from Sydney to Phnom Penh in 2026

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Phnom Penh with Singapore Airlines?

The best time to book a flight to Phnom Penh with Singapore Airlines is 56 days before departure. On average, fares are higher if you book 2 days before departure.

Which month is the cheapest to fly Economy class from Sydney to Phnom Penh?

For Economy class flights, the cheapest month to fly this route is January. The most expensive months are December and June.

Rainfall in Phnom Penh 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

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

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Fly from Sydney to Phnom Penh on another airline

Consider alternative airlines that service the Phnom Penh area. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Other Singapore Airlines flights from Sydney

Browse through other Singapore Airlines flights departing from Sydney. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Complete your trip

Complete your trip to Phnom Penh by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines serving Sydney and Phnom Penh

Choose from other airlines serving Sydney and Phnom Penh.

Other popular destinations in Asia

If Phnom Penh is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Popular flights with Singapore Airlines

Browse through some of the most popular routes that Singapore Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 24 August 2026.

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Singapore Airlines flights from Sydney to Phnom Penh (SYD - KTI)

How do most travelers feel about Singapore Airlines?

Singapore Airlines flights from Sydney to Phnom Penh in 2026

Popular in

Cheapest in

Average price (all airlines)

When is the best time to book a flight to Phnom Penh with Singapore Airlines?

The best time to book a flight to Phnom Penh with Singapore Airlines is 56 days before departure. On average, fares are higher if you book 2 days before departure.

Which month is the cheapest to fly Economy class from Sydney to Phnom Penh?

For Economy class flights, the cheapest month to fly this route is January. The most expensive months are December and June.

Rainfall in Phnom Penh 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

Best time to book a flight from Sydney to Phnom Penh

Have a flexible travel schedule? Discover the best time to fly to Phnom Penh from Sydney with our price prediction graph.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from Sydney to Phnom Penh on another airline

Consider alternative airlines that service the Phnom Penh area. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Other Singapore Airlines flights from Sydney

Browse through other Singapore Airlines flights departing from Sydney. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Complete your trip

Complete your trip to Phnom Penh by adding a car hire and/or hotel booking to your travel itinerary.

Other airlines serving Sydney and Phnom Penh

Choose from other airlines serving Sydney and Phnom Penh.

Other popular destinations in Asia

If Phnom Penh is not for you, choose from these other destinations located in Asia. Flight routes are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Popular flights with Singapore Airlines

Browse through some of the most popular routes that Singapore Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 24 August 2026.

See what others are saying about Singapore Airlines

Overview

Recent reviews

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Book with flexibility

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