Cheap flights from Incheon Intl Airport to Sydney
Cheapflights Tip: The best prices from Incheon Intl to Sydney Kingsford Smith are usually found in March or June, booked 15 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from Incheon Intl to Sydney
Discover tips and strategies to find the most affordable flight options for your journey from Incheon Intl (ICN) to Sydney (SYD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 22 October 2025.
Popular in | January |
|---|---|
Cheapest in | March |
Average price | £681 |
Good round-trip deal | £1,670 or less |
Good one-way deal | £335 or less |
Best time to book a flight from Incheon Intl to Sydney
Have a flexible travel schedule? Discover the best time to fly to Sydney from Incheon Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Incheon Intl Airport to Sydney
How far ahead should I book a flight from Incheon Intl Airport to Sydney?
The best time to book flights from Incheon Intl Airport to Sydney is 15 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Incheon Intl Airport to Sydney?
Currently, May is the cheapest month in which you can book a flight from Incheon Intl Airport to Sydney (average of £278). Flying from Incheon Intl Airport to Sydney in January is currently the most expensive (average of £375). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ICN to SYD?
Unlike in the afternoon, when flights are generally more expensive, you can save up to 76% on flights from Incheon Intl Airport to Sydney by exploring options for tickets in the morning.
How often are flights from Incheon to Sydney delayed?
About 34% of weekly flights between Incheon and Sydney have experienced delays in the past year, with the average delay time being 119 minutes.
What is the most punctual flight time for Incheon to Sydney flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Incheon to Sydney flights?
Over the past year, Hahn Air Systems have had the lowest number of delays on this route, with just 23% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Incheon Intl to Sydney. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Can Cheapflights find flights from Incheon Intl to Sydney with no change fees?
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Can Cheapflights notify me if prices for flights from Incheon Intl to Sydney become cheaper?
Not ready to book yet? You can track prices for flights from Incheon Intl to Sydney on Cheapflights with our Price Alert feature and get notified when better prices are available.