Cheap flights from Seoul to Istanbul from £158

In general, December is the cheapest month to fly from Seoul to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £415. If you are unable to visit Istanbul Airport during the month of December, then departing from Seoul during the month June is also very affordable. Most momondo users find prices during this month for around £445.

The cheapest day to depart from Seoul to Istanbul Airport is on a Sunday. Travellers who choose to depart for Istanbul Airport on a Sunday will often find tickets for as low as £560. The most expensive day to fly to Istanbul Airport is Thursday, with ticket prices averaging around £1,352.

Flying to Istanbul Airport from Seoul in the evening is the least expensive time of day to depart. momondo users have found prices as low as £716 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are £1,503 on average. Flights to Istanbul Airport from Seoul in the morning are generally more expensive because this time of day is more convenient for travellers’ schedules.

Fly from Incheon Intl to Istanbul for the best Seoul - Istanbul flight prices

You are more likely to see cheaper flights to Istanbul Airport from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around £511 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from Seoul for as low as £436 on momondo.

There are 2 cabin classes available to choose from on Seoul to Istanbul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 0% of flights between Seoul and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 0 minutes.

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

As of February 2026, there are 3 flights per day flying from Seoul to Istanbul Airport. The most common time of day flights depart is 00:00, with 45% of flights taking off in the morning.

27 flights are operational weekly from Seoul to Istanbul Airport as of February 2026. The most popular departure day for this route is Mon, with 19% of flights per week taking off on this day.