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KTI - SYD

$420 Find Cheap Flights from Phnom Penh to Sydney – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
$796
Typical prices: $1,030-$1,500
XiamenAir
Thu 1/11Sat 10/11
KTI - SYD • 1 stop
Cheapest one-way flight
$420
Typical prices: $479-$887
Multiple Airlines
Thu 6/12
KTI - SYD • 1 stop
Direct flights
Not available
There are currently no direct flights between Phnom Penh and Sydney. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
21 weeks
in advance
Our data shows that travellers who book at least 21 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
When to travel
December
Cheapest • 20% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg $785 (return)
Singapore Changi (SIN)
Shortest trip • 13h 52m (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 Sydney!
Flight Deals
Booking Insights
Flight Deals

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

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

Recent return flight deals from Phnom Penh to Sydney

Tue, 27 Oct - Fri, 30 Oct
XiamenAir Logo
18:10 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
36h 25m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
12:35 - 17:05SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
32h 30m1 stop Xiamen Gaoqi Intl
$795XiamenAir
6 hours ago
Sun, 1 Nov - Tue, 10 Nov
XiamenAir Logo
18:10 - 10:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
36h 25m1 stop Xiamen Gaoqi Intl
XiamenAir Logo
12:35 - 17:05SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
32h 30m1 stop Xiamen Gaoqi Intl
$796XiamenAir
1 day ago
Mon, 2 Nov - Mon, 9 Nov
Cathay Pacific Logo
19:05 - 13:00KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
13h 55m1 stop Hong Kong Intl
Cathay Pacific Logo
22:20 - 10:25SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
16h 05m1 stop Hong Kong Intl
$1,353Cathay Pacific
3+ days ago
Sun, 1 Nov - Sun, 31 Jan
China Southern Logo
16:10 - 20:25KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
24h 15m1 stop Guangzhou Baiyun
China Southern Logo
15:10 - 10:50SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
23h 40m1 stop Guangzhou Baiyun
$1,397China Southern
3+ days ago
Tue, 8 Dec - Wed, 9 Dec
China Southern Logo
11:55 - 06:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
14h 40m1 stop Guangzhou Baiyun
China Southern Logo
15:10 - 15:05SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
27h 55m1 stop Guangzhou Baiyun
$1,511China Southern
2 days ago
Mon, 25 Jan - Tue, 30 Mar
Malaysia Airlines Logo
18:30 - 07:55KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
33h 25m1 stop Kuala Lumpur Intl
Malaysia Airlines Logo
12:25 - 10:00SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
25h 35m2 stops Perth Kuala Lumpur Intl
$2,087Malaysia Airlines
1 day ago
Wed, 20 Jan - Tue, 30 Mar
Malaysia Airlines Logo
11:10 - 07:55KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
16h 45m1 stop Kuala Lumpur Intl
Malaysia Airlines Logo
12:25 - 17:25SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
33h 00m2 stops Perth Kuala Lumpur Intl
$2,195Malaysia Airlines
2 days ago
Mon, 25 Jan - Tue, 30 Mar
Cathay Pacific Logo
19:05 - 07:35KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
32h 30m2 stops Hong Kong Intl Brisbane
Cathay Pacific Logo
06:25 - 10:15SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
31h 50m2 stops Brisbane Hong Kong Intl
$2,461Cathay Pacific
1 day ago
Sat, 26 Dec - Sun, 10 Jan
Singapore Airlines Logo
19:40 - 16:20KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
16h 40m2 stops Singapore Changi Perth
Singapore Airlines Logo
20:00 - 08:35SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
16h 35m2 stops Brisbane Singapore Changi
$2,918Singapore Airlines
13 hours ago
Tue, 29 Dec - Wed, 20 Jan
Singapore Airlines Logo
14:40 - 11:50KTI  Phnom Penh Techo Intl-SYD Sydney Kingsford Smith
17h 10m1 stop Singapore Changi
Singapore Airlines Logo
08:05 - 18:30SYD  Sydney Kingsford Smith-KTI Phnom Penh Techo Intl
14h 25m1 stop Singapore Changi
$13,713Singapore Airlines
3+ days ago
Booking Insights

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

Return flights from Phnom Penh to Sydney typically range from $1,030 to $1,500. The lowest price found in the past 5 days was $796 on XiamenAir.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Phnom Penh to Sydney. It’s 7% cheaper than the average day, while Wednesday is the most expensive, with prices 8% higher.

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

•December is the cheapest month to fly from Phnom Penh to Sydney at $1,039 return.
•September ($1,498) and November ($1,407) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Phnom Penh to Sydney the cheapest?

Flights from Phnom Penh to Sydney are cheapest 21 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Phnom Penh to Sydney flights

Low season

September

Cheapest flight

$420
Beat the crowds with an average 52% drop in traveller numbers.
The most popular month to fly with an average 220% increase in traveller numbers.
One-way flight from Phnom Penh to Sydney

When to book flights from Phnom Penh to Sydney

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

Your Phnom Penh to Sydney 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 Phnom Penh to Sydney?

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

    • Economy class
    • Premium Economy Class
    • Business Class

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

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

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

    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 Phnom Penh to Sydney flight?

    Return flights from Phnom Penh to Sydney range from $1,030 to $1,500, with an average of $1,298 over the past 12 months. Anything below $1,030 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 15% above the $1,298 route average. Book 21 weeks before departure for the lowest fares.

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

    One-way fares from Phnom Penh to Sydney are currently lower than usual. Average one-way flight prices are about $621, which is 6% below the typical average for this route.

  • Which car hire options are available at Sydney Kingsford Smith Airport (SYD)?

    Sydney Kingsford Smith Airport (SYD) hosts 5 major car hire companies, with daily rates starting from around $15 for economy cars. Top options include:

    • East Coast Car Rentals
    • Bargain Car Rentals
    • YESDRIVE CAR RENTAL
    • No Birds
    • EverythingFleet

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

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

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

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

    • Kuala Lumpur Intl (KUL) – 29% of one-stop connections
    • Hong Kong Intl (HKG) – 27% of one-stop connections
    • Singapore Changi (SIN) – 26% of one-stop connections
    • Guangzhou Baiyun (CAN) – 12% of one-stop connections

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

    Yes. Flexible dates can save you up to 14% on flights from Phnom Penh to Sydney. Tuesday is the cheapest departure day at $1,213 return on average, while Wednesday is the most expensive at $1,407, a difference of $194.

    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 Phnom Penh to Sydney?

    Flying via Singapore Changi (SIN) gives the shortest average 1-stop total travel time of 13h 52m, compared to 14h 29m via Kuala Lumpur Intl (KUL) and 15h 15m via Hong Kong Intl (HKG).

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

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

  • What popular places can I visit in Sydney?

    Some of the most popular sights in Sydney are Sydney Opera House, Star Casino, and Capitol Theatre. These are among the most viewed places in Sydney on KAYAK.

Your guide to booking Phnom Penh to Sydney 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 Tuesday departure and avoid flying on Wednesday. On this route, Tuesday flights average $1,213, about $194 less than Wednesday fares (14% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 21 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Phnom Penh to Sydney trip for December. Fares historically average $1,039 return in that month – typically $459 less than the most expensive month, which is September (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sydney Kingsford Smith Airport.

    • Travelodge Hotel Sydney Airport
    • Rydges Sydney Airport Hotel
    • ibis budget Sydney Airport

More options for your flight from Phnom Penh to Sydney

Complete your trip to Sydney with a hotel stay or car hire

Car hire in Sydney
Hotels in Sydney
Holidays in Sydney