Cheap flights from Sydney to Seoul from $408

In general, February is the cheapest month to fly from Sydney to Incheon Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $822. If you aren’t able to travel to Incheon Intl Airport during the month of February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $925.

The cheapest day to depart from Sydney to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,215. On the other hand, Friday is the most expensive day to depart from Sydney because it is more convenient for both business and leisure travellers. As a result, prices tend to be around $1,399.

Our most recent data shows that the best time of day to fly to Incheon Intl Airport is in the morning. Flights from Sydney to Incheon Intl Airport during this time can be as low as $1,263. Flights in the evening are often more expensive, with an average ticket price of $1,586.

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

You are more likely to see cheaper flights to Incheon Intl Airport from Sydney when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,109 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Sydney for as low as $898 on momondo.

There are 3 cabin classes available to choose from on Sydney to Incheon Intl Airport 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 10% on your flight if you consider stops on a Sydney to Incheon Intl Airport flight.

As of October 2026, prices for Sydney to Incheon Intl Airport flights are approximately 9% more expensive when compared to flights at the same time last year.

Shenzhen Airlines, Trinity Airways (Formerly T'way Air), and Cathay Pacific are the most popular carriers operating from Sydney Kingsford Smith to Incheon Intl

Jetstar, Asiana Airlines and Trinity Airways (Formerly T'way Air) are the top three most popular airlines that fly to Incheon Intl Airport from Sydney according to our data. Jetstar is the first choice among our users, with 35% of people opting to fly with this airline when travelling to Incheon Intl Airport. Keep in mind that there are 15 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 30% of flights between Sydney and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 113 minutes.

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

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

According to our data, Korean Air have had the fewest delays on this route over the last 12 months, with about 17% of their flights experiencing any sort of delay.

Guangzhou (CAN) was the most common stop: 40% of momondo users choosing one-stop flights on this route connected there.

Flights via Kuala Lumpur (KUL) offer the lowest average return price of $561.

Flights connecting via Hong Kong (HKG) have the shortest average one-way travel time: 15h 45m.

Hong Kong (HKG) has the shortest average stopover time for this route: 2h 08m.

4 flights are operational daily from Sydney to Incheon Intl Airport as of October 2026. The most popular departure time for this route is 08:00, with 84% of flights per day taking off at midday.

The number of flights available between Sydney and Incheon Intl Airport is 34 per week as of October 2026. The most frequent departure day is Sun, with 26% of weekly flights leaving on this day.