SYD - KTI

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

Nonstop 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.
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When to book
22 weeks
in advance
Our data shows that travelers who book at least 22 weeks in advance save around 24% compared to booking last minute.
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When to travel
May
Cheapest • 27% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Xiamen Gaoqi Intl (XMN)
Cheapest • Avg $626 (round-trip)
Ho Chi Minh City (SGN)
Shortest trip • 14h 17m (one-way)
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Cheap Flights from Sydney to Phnom Penh (SYD-KTI)

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

Recent round-trip flight deals from Sydney to Phnom Penh

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SYD  Sydney Airport-KTI Phnom Penh Techo Intl
4356 mimulti-stop
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KTI  Phnom Penh Techo Intl-SYD Sydney Airport
4356 mimulti-stop
Multiple 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 from Sydney to Phnom Penh with more confidence.

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

Sunday is the cheapest day of the week to fly from Sydney to Phnom Penh, it is 8% cheaper than the average day. Tuesday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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 $583 round-trip.
  • December ($1,232) and January ($907) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 111% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Sydney to Phnom Penh the cheapest?

Flights from Sydney to Phnom Penh are cheapest 22 weeks before departure. Booking in this window typically costs about 24% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Sydney to Phnom Penh flights

Low season

September
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 55% increase in price.

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 round-trip price

Your Sydney to Phnom Penh flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

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

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

  • 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) - 35% of one-stop connections
    • Hong Kong Intl (HKG) - 22% of one-stop connections
    • Guangzhou Baiyun (CAN) - 20% of one-stop connections
    • Kuala Lumpur Intl (KUL) - 17% of one-stop connections

    Singapore Changi (SIN) handles the largest share of one-stop connections on this route.

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

    On the Sydney to Phnom Penh route, being flexible with your departure day can save you up to 23%. Sunday is the cheapest day at $739 round-trip on average, while Tuesday is the most expensive at $959: a $220 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    A nonstop flight from Sydney to Phnom Penh takes 0h 00m, covering 4,356 miles.

  • What are the earliest and latest flights from Sydney to Phnom Penh?

    These are the earliest and latest flight times available from Sydney to Phnom Penh:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 10% above the route average of $796. Book 22 weeks before departure for the lowest fares.

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

    Flying via Ho Chi Minh City (SGN) gives the shortest average 1-stop total travel time at 14h 17m, compared with 14h 31m via Kuala Lumpur Intl (KUL) and 14h 46m via Hong Kong Intl (HKG).

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

    Phnom Penh is 3 hours behind Sydney (Indochina Time vs Eastern Australia Time). Plan for the time shift when scheduling connections or first-day activities.

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

    Round-trip flights from Sydney to Phnom Penh range from $638 to $1,027, with an average of $796 over the past 12 months. Anything below $638 counts as a good deal.

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 can be flexible, aim for a Sunday departure instead of Tuesday. On this route, Sunday flights average $739 - about $220 less than Tuesday (23% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 22 weeks before you fly. On this route, that window historically saves about 24% 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 $583 round-trip in that month - typically $649 less than the most expensive month, which is December (based on the last 12 months).

Everything you need to know for your flight from Sydney to Phnom Penh

Information on your arrival and departure airports

Sydney (SYD)
Phnom Penh (KTI)