Cheap flights from Seoul to Istanbul from $216

In general, March 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 $375. If you don’t want to visit Istanbul Airport in March, then you should wait until April to fly from Seoul, when ticket prices are also cheap, with an average price of $391.

Our data shows that Thursday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $875. On the other hand, Sunday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,443.

At noon is the cheapest time of day to fly from Seoul to Istanbul Airport when you can find flight prices for as low as $799. Flying to Istanbul Airport at noon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $1,051.

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 $702 when searching weeks out. 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 $558 on momondo.

You could potentially save up to 14% on your flight if you consider stops on a Seoul to Istanbul Airport flight.

As of May 2026, prices for Seoul to Istanbul Airport flights are approximately 9% cheaper when compared to flights at the same time last year.

China Eastern and China Southern are the most popular carriers operating from Seoul to Istanbul

China Eastern, Asiana Airlines and Turkish Airlines are the top three most popular airlines that fly to Istanbul Airport from Seoul according to our data. China Eastern is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Istanbul Airport. Keep in mind that there are 5 different airlines that fly to Istanbul Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 33% 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 36 minutes.

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

Shanghai (PVG) was the most common stop: 35% of momondo users choosing 1-stop flights on this route connected there.

Flights via Xi'an (XIY) offer the lowest average round-trip price of $411.

Flights connecting via Tashkent (TAS) have the shortest average one-way travel time: 15h 53m.

Warsaw (WAW) has the shortest average layover time for this route: 1h 10m.

As of May 2026, 5 flights take off from Seoul and land in Istanbul Airport each day. The most common flight departure time for this route is 10:00AM, with 45% of daily flights taking off at noon.

The number of flights available between Seoul and Istanbul Airport is 35 per week as of May 2026. The most frequent departure day is Wed, with 20% of weekly flights leaving on this day.