United Kingdom
GBP

SYD - KTI

£298 Find Cheap Flights from Sydney to Phnom Penh – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£490
Typical prices: £494-£790
Singapore Airlines
Fri 16/2Wed 21/2
SYD - KTI • 1 stop
Cheapest one-way flight
£298
Typical prices: £262-£493
Vietnam Airlines
Sat 3/11
SYD - KTI • 1 stop
Direct flights
Not available
There are currently no direct flights between Sydney and Phnom Penh. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travellers who book at least 16 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 29% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Xiamen Gaoqi Intl (XMN)
Cheapest • Avg £448 (return)
Kuala Lumpur Intl (KUL)
Shortest trip • 14h 38m (one-way)
Insights
Insights
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We hope you enjoy your trip to Phnom Penh!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sydney to Phnom Penh (SYD-KTI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Phnom Penh

Tue, 16 Feb - Sun, 21 Feb
Singapore Airlines Logo
19:10 - 13:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
22h 35m1 stop Singapore Changi
Singapore Airlines Logo
14:40 - 11:50KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 10m1 stop Singapore Changi
£490Singapore Airlines
Tue, 16 Feb - Sun, 21 Feb
Singapore Airlines Logo
19:10 - 13:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
22h 35m1 stop Singapore Changi
Singapore Airlines Logo
14:40 - 11:50KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 10m1 stop Singapore Changi
£491Singapore Airlines
Tue, 3 Nov - Sun, 8 Nov
Vietnam Airlines Logo
11:50 - 16:40SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
32h 50m1 stop Ho Chi Minh City
Vietnam Airlines Logo
17:30 - 13:15KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
15h 45m2 stops Vientiane Wattay Hanoi Noibai
£509Vietnam Airlines
Wed, 21 Oct - Tue, 3 Nov
Malaysia Airlines Logo
10:00 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
28h 00m1 stop Kuala Lumpur Intl
Malaysia Airlines Logo
18:30 - 07:55KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
33h 25m1 stop Kuala Lumpur Intl
£513Malaysia Airlines
Tue, 3 Nov - Sun, 8 Nov
Malaysia Airlines Logo
22:15 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
15h 45m1 stop Kuala Lumpur Intl
Malaysia Airlines Logo
18:30 - 06:05KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
31h 35m2 stops Kuala Lumpur Intl Perth
£532Malaysia Airlines
Tue, 17 Nov - Sun, 22 Nov
Malaysia Airlines Logo
11:50 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
26h 10m1 stop Kuala Lumpur Intl
Malaysia Airlines Logo
18:30 - 06:05KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
31h 35m2 stops Kuala Lumpur Intl Perth
£534Malaysia Airlines
Tue, 16 Feb - Sun, 21 Feb
Singapore Airlines Logo
19:10 - 13:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
22h 35m1 stop Singapore Changi
Singapore Airlines Logo
14:40 - 11:50KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 10m1 stop Singapore Changi
£546Singapore Airlines
Tue, 16 Feb - Sun, 21 Feb
Singapore Airlines Logo
19:10 - 13:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
22h 35m1 stop Singapore Changi
Singapore Airlines Logo
14:40 - 11:50KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 10m1 stop Singapore Changi
£546Singapore Airlines
Tue, 17 Nov - Sun, 22 Nov
Multiple Airlines Logo
19:45 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
18h 15m2 stops Perth Kuala Lumpur Intl
Multiple Airlines Logo
18:30 - 06:05KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
31h 35m2 stops Kuala Lumpur Intl Perth
£566Multiple Airlines
Tue, 3 Nov - Sun, 8 Nov
Multiple Airlines Logo
22:15 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
15h 45m1 stop Kuala Lumpur Intl
Multiple Airlines Logo
18:30 - 13:55KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
15h 25m2 stops Kuala Lumpur Intl Melbourne
£568Multiple Airlines
Booking Insights

Price, demand, and travel trends for Sydney to Phnom Penh flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from Sydney to Phnom Penh?

Return flights from Sydney to Phnom Penh typically range from £494 to £790. The lowest price found in the past 5 days was £490 on Singapore Airlines.

What's the cheapest day of the week to fly from Sydney to Phnom Penh?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Sydney to Phnom Penh. It’s 9% cheaper than the average day, while Tuesday is the most expensive, with prices 14% higher.

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

•May is the cheapest month to fly from Sydney to Phnom Penh at £442 return.
•December (£941) and January (£707) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 112% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Sydney to Phnom Penh the cheapest?

Flights from Sydney to Phnom Penh are cheapest 16 weeks before departure. Booking in this window typically costs about 28% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Sydney to Phnom Penh flights

Low season

September

Cheapest flight

£298
Beat the crowds with an average 41% drop in traveller numbers.
The most popular month to fly with an average 183% increase in traveller numbers.
One-way flight from Sydney to Phnom Penh

When to book flights from Sydney to Phnom Penh

Are your dates flexible? Find out the best times to travel from Sydney to Phnom Penh based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Sydney to Phnom Penh flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Sydney to Phnom Penh?

    Only Economy class is available on flights from Sydney to Phnom Penh.

  • How long is a flight from Sydney to Phnom Penh?

    A direct flight from Sydney to Phnom Penh takes 00m, covering 4,356 miles.

  • Do I need a passport to fly from Sydney to Phnom Penh?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Sydney to Phnom Penh flight?

    Return flights from Sydney to Phnom Penh range from £494 to £790, with an average of £625 over the past 12 months. Anything below £494 counts as a good deal.

  • How expensive are last-minute Sydney to Phnom Penh flights?

    Last-minute fares on this route (booked within two weeks of departure) run 9% above the £625 route average. Book 16 weeks before departure for the lowest fares.

  • Have flight prices from Sydney to Phnom Penh changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £490 to £1,902. That means the highest observed fare was about 4x higher than the lowest one.

  • How are flight prices from Sydney to Phnom Penh looking right now?

    One-way fares from Sydney to Phnom Penh are currently higher than usual. Average one-way flight prices are about £494, which is 28% above the typical average for this route.

  • Which airports can I use when flying from Sydney to Phnom Penh?

    Flights from Sydney to Phnom Penh usually depart from Sydney Kingsford Smith (SYD) and arrive at Phnom Penh Techo Intl (KTI).

  • Which airports do connecting flights from Sydney to Phnom Penh pass through?

    One-stop flights from Sydney to Phnom Penh most commonly connect through:

    • Singapore Changi (SIN) – 32% of one-stop connections
    • Hong Kong Intl (HKG) – 22% of one-stop connections
    • Guangzhou Baiyun (CAN) – 21% of one-stop connections
    • Kuala Lumpur Intl (KUL) – 18% of one-stop connections

  • Can I save money by using flexible dates for flights from Sydney to Phnom Penh?

    Yes. Flexible dates can save you up to 21% on flights from Sydney to Phnom Penh. Wednesday is the cheapest departure day at £573 return on average, while Tuesday is the most expensive at £717, a difference of £144.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Sydney to Phnom Penh?

    Flying via Kuala Lumpur Intl (KUL) gives the shortest average 1-stop total travel time of 14h 38m, compared to 14h 40m via Hong Kong Intl (HKG) and 15h 05m via Ho Chi Minh City (SGN).

  • What is the time difference between Sydney and Phnom Penh?

    Phnom Penh is 4 hours behind Sydney (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking Sydney to Phnom Penh flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Tuesday. On this route, Wednesday flights average £573, about £144 less than Tuesday fares (20% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 28% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Sydney to Phnom Penh trip for May. Fares historically average £442 return in that month – typically £499 less than the most expensive month, which is December (based on the last 12 months).

More options for your flight from Sydney to Phnom Penh

Complete your trip to Phnom Penh with a hotel stay or car hire

Car hire in Phnom Penh
Hotels in Phnom Penh
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