Cheap flights from Seoul to Istanbul from £234

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 £406. If you are unable to visit Istanbul Airport during the month of December, then departing from Seoul during the month November is also very affordable. Most momondo users find prices during this month for around £440.

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 £561. The most expensive day to fly to Istanbul Airport is Thursday, with ticket prices averaging around £1,354.

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 £717 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 £1,506 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 £518 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 £455 on momondo.

There are 2 cabin classes available to choose from on Seoul to Istanbul 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 53% on your flight if you consider stops on a Seoul to Istanbul Airport flight.

As of August 2026, prices for Seoul to Istanbul Airport flights are approximately 63% cheaper when compared to flights at the same time last year.

Historically, on average around 100% 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 107 minutes.

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

As of August 2026, there are 3 flights per day flying from Seoul to Istanbul Airport. The most common time of day flights depart is 23:00, with 48% of flights taking off in the evening.

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