Cheap flights from Seoul to Istanbul from $344 GMP, ICN → IST, SAW

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $398 to $514.

At $558, the cheapest return found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 14-night return fares leaving within 3 days of 23 Dec to compare.

Every date we hold

474 fares on 24 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $496.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $14 to $425.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 23 Nov to compare.

Every date we hold

71 fares on 5 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $274.

Return

Fares 30 to 59 days before departure were typically 7% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 14 to 29 days before departure were typically 10% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Seoul to Istanbul?

The cheapest return found recently is $558 with Turkmenistan Airlines, 23 Dec to 6 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is $496 with Air China, 8 Dec to 10 Jan 2027, found 4 days ago. The cheapest return fare on each of 24 departure dates is usually $552 to $682.

How much is a one-way flight from Seoul to Istanbul?

The cheapest one-way found recently is $344 with China Eastern, 23 Nov, found 2 days ago. The cheapest one-way we hold, of any age, is $274 with Turkmenistan Airlines, 3 Dec, found 8 days ago. The cheapest one-way fare on each of 5 departure dates is usually $312 to $344.

What is the cheapest month to fly from Seoul to Istanbul?

December 2026 is the cheapest month for a return, from $496, 8 Dec to 10 Jan 2027, found 4 days ago. It is the cheapest month for a one-way too, from $274, 3 Dec, found 8 days ago.

How far ahead should I book a flight from Seoul to Istanbul?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 7% lower than 0 to 6 days before departure. One-way fares 14 to 29 days before departure were typically 10% lower than 0 to 6 days before departure.

Is there a direct flight from Seoul to Istanbul?

Yes, the cheapest nonstop return found recently is $752 with Asiana Airlines, 31 Dec to 9 Jan 2027, found 2 days ago. The cheapest nonstop one-way found recently is $803 with Turkish Airlines, 23 Nov, found 2 days ago.

Every nonstop date from Seoul to Istanbul

How long is the flight from Seoul to Istanbul?

The cheapest nonstop one-way found recently, with Turkish Airlines on 23 Nov, takes 12 h from Incheon International Airport (ICN) to Istanbul New Airport (IST). The cheapest one-way found recently, with China Eastern on 23 Nov, takes 17 h 5 min with 1 stop.

Which airlines have the cheapest flights from Seoul to Istanbul?

Between 16 Nov and 26 Sept 2027, China Southern Airlines has the cheapest return on 8 of the 24 departure dates we hold, China Eastern on 5 and Air China on 4. Between 23 Nov and 20 Aug 2027, China Eastern has the cheapest one-way on 2 of the 5 departure dates we hold, Turkmenistan Airlines on 1 and SCAT on 1.