Australia
AUD

SYD - KTI

$413 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
$822
Typical prices: $939-$1,501
China Southern
Sat 17/11Thu 22/11
SYD - KTI • 1 stop
Cheapest one-way flight
$408
Typical prices: $497-$937
China Southern
Sat 3/2
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 $851 (return)
Kuala Lumpur Intl (KUL)
Shortest trip • 14h 38m (one-way)
Insights
Insights
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KAYAK searches hundreds of sites at once to find you the best travel deals.
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, 17 Nov - Sun, 22 Nov
China Southern Logo
15:10 - 10:50SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
23h 40m1 stop Guangzhou Baiyun
China Southern Logo
11:55 - 20:25KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
28h 30m1 stop Guangzhou Baiyun
$822China Southern
3+ days ago
Tue, 10 Nov - Sun, 15 Nov
China Southern Logo
15:10 - 23:30SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
36h 20m1 stop Guangzhou Baiyun
China Southern Logo
08:00 - 20:25KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
32h 25m1 stop Guangzhou Baiyun
$824China Southern
1 day ago
Wed, 21 Oct - Tue, 3 Nov
Vietnam Airlines Logo
11:15 - 16:55SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
33h 40m1 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
$827Vietnam Airlines
2 days ago
Wed, 21 Oct - Tue, 3 Nov
Multiple Airlines Logo
21:50 - 17:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
23h 55m2 stops Kuala Lumpur Intl Bangkok Don Mueang Intl
Multiple Airlines Logo
18:10 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
36h 25m1 stop Xiamen Gaoqi Intl
$878Multiple Airlines
15 hours ago
Wed, 21 Oct - Tue, 3 Nov
Vietnam Airlines Logo
11:15 - 09:30SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
26h 15m1 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
$890Vietnam Airlines
3+ days ago
Wed, 21 Oct - Tue, 3 Nov
Multiple Airlines Logo
21:50 - 17:45SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
23h 55m3 stops Kuala Lumpur Intl Phuket City Bangkok Don Mueang Intl
Multiple Airlines Logo
18:10 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
36h 25m1 stop Xiamen Gaoqi Intl
$899Multiple Airlines
15 hours ago
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
$932Singapore Airlines
1 day ago
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
$933Singapore Airlines
2 days ago
Sat, 28 Nov - Sat, 12 Dec
XiamenAir Logo
12:35 - 17:05SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
32h 30m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
12:50 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 45m1 stop Xiamen Gaoqi Intl
$972XiamenAir
3+ days ago
Fri, 30 Oct - Wed, 25 Nov
XiamenAir Logo
12:35 - 17:05SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
32h 30m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
12:50 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 45m1 stop Xiamen Gaoqi Intl
$988XiamenAir
1 day ago
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 $939 to $1,501. The lowest price found in the past 5 days was $822 on China Southern.

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 $840 return.
•December ($1,787) and January ($1,343) 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

$408
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?

    Three cabin classes are available on flights from Sydney to Phnom Penh:

    • Economy class
    • Premium Economy Class
    • Business Class

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

    A direct flight from Sydney to Phnom Penh takes 00m, covering 11,282 km.

  • 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 $939 to $1,501, with an average of $1,187 over the past 12 months. Anything below $939 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 $1,187 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 $822 to $4,693. That means the highest observed fare was about 6x 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 lower than usual. Average one-way flight prices are about $540, which is 27% below 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 $1,088 return on average, while Tuesday is the most expensive at $1,361, a difference of $273.

    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 $1,088, about $273 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 $840 return in that month – typically $947 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

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