Cheap flights from Incheon Intl Airport to Sydney from $290

In general, March is the cheapest month to fly from Incheon Intl Airport to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $495. If you are unable to visit Sydney during the month of March, then departing from Incheon Intl Airport during the month May is also very affordable. Most momondo users find prices during this month for around $600.

The cheapest day to depart from Incheon Intl Airport to Sydney is on a Thursday when prices can be found for as low as $651. The most expensive day to fly to Sydney is Friday, with ticket prices averaging around $924.

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 $749. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Sydney are more costly in the afternoon, with an average ticket price of $1,101. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $694 when searching weeks out. 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 $568 on momondo.

There are 2 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 18% 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 5% more expensive when compared to flights at the same time last year.

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

Jetstar, Asiana Airlines and Korean 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 70% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 3 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

Historically, on average around 26% 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 128 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of 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 least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

11 flights are operational daily from Incheon Intl Airport to Sydney as of August 2026. The most popular departure time for this route is 7:00PM, with 71% of flights per day taking off in the evening.

As of August 2026, 80 flights take off from Incheon Intl Airport and land in Sydney each week. The most common flight departure day for this route is Fri, with 16% of weekly flights taking off on this day.