Cheap flights from Incheon Intl Airport to Sydney from $425

The month of March is, on average, the cheapest month to fly to Sydney from Incheon Intl Airport, with most prices found around $685. If you aren’t able to travel to Sydney during the month of March, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $849.

Our data shows that Tuesday is the least expensive day to fly to Sydney. Tickets to fly out on this day can be as low as $646. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $1,085.

According to our data, the cheapest time of day to fly to Sydney is in the evening. momondo users have found flights departing from Incheon Intl Airport to Sydney in the evening for as low as $820. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,573 on average. Flights to Sydney from Incheon Intl Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Incheon Intl to Sydney Kingsford Smith for the best Incheon Intl - Sydney Kingsford Smith flight prices

You are more likely to see cheaper flights to Sydney from Incheon Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sydney for around $966 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sydney from Incheon Intl Airport for as low as $807 on momondo.

There are 3 cabin classes available to choose from on Incheon Intl Airport to Sydney flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 15% on your flight if you consider stops on a Incheon Intl Airport to Sydney flight.

As of August 2026, prices for Incheon Intl Airport to Sydney flights are approximately 4% more expensive when compared to flights at the same time last year.

T'way Air, Vietnam Airlines, and Jetstar are the most popular carriers operating from Incheon Intl to Sydney Kingsford Smith

Jetstar, Asiana Airlines and T'way Air are the top three most popular airlines that fly to Sydney from Incheon Intl Airport according to our data. Jetstar is the first choice among our users, with 39% of people opting to fly with this airline when travelling to Sydney. Keep in mind that there are 5 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Historically, on average around 27% of flights between Incheon and Sydney have experienced a delay on any given week. The average delay length over the past 12 months has been 126 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, T'way Air have had the fewest delays on this route over the last 12 months, with about 18% of their flights experiencing any sort of delay.

As of August 2026, 12 flights take off from Incheon Intl Airport and land in Sydney each day. The most common flight departure time for this route is 19:00, with 72% of daily flights taking off in the evening.

As of August 2026, there are 84 flights per week flying from Incheon Intl Airport to Sydney. The most common day of the week flights depart is Fri, with 17% of flights taking off on this day.