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Seoul to Istanbul GMP, ICN → IST, SAW

Gimpo International Airport (GMP), Incheon International Airport (ICN) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)

The cheapest return found recently is $515 with China Eastern, 17 Dec – 23 Dec, found yesterday. The cheapest one-way found recently is $285 with China Eastern, 26 Oct, found yesterday.

Return

The cheapest return fare on each of 25 departure dates is usually $535 to $709.

Cheapest return found recently

$515

17 Dec – 23 Dec · China Eastern

Incheon International Airport (ICN) → Istanbul New Airport (IST)

Leaves 6:25 p.m. · Return leaves 1:35 p.m. · 39 h 30 min of travel, both ways together

out 1 stop, back 1 stop

found yesterday

See prices for these datesCheck today's price

Cheapest nonstop return

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently $515 17 Dec – 23 Decfound yesterdaySee prices for these dates

Cheapest we hold, of any age $399 26 Oct – 4 Novfound 6 days agoSee prices for these dates

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $399 to $514.

At $515, the cheapest return found recently is above that range.

25 days is a short history, so treat this range as an early guide.

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

Is this a good return price?

Compared with the cheapest return fare on each of 25 departure dates from 21 Oct to 30 Aug 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 6-night return fares leaving within 3 days of 17 Dec to compare.

Every date we hold

53 fares on 25 departure dates

21 Oct – 3 Nov: $452, found 2 days ago22 Oct – 3 Nov: $974, found 4 days ago26 Oct – 4 Nov: $399, found 6 days ago29 Oct – 20 Nov: $594, found yesterday2 Nov – 14 Nov: $824, found 6 days ago16 Nov – 30 Nov: $515, found 4 days ago25 Nov – 14 Dec: $576, found yesterday26 Nov – 11 Dec: $522, found today4 Dec – 9 Dec: $558, found 3 days ago15 Dec – 4 Jan 2027: $510, found 5 days ago17 Dec – 23 Dec: $512, found 3 days ago20 Dec – 15 Jan 2027: $583, found 6 days ago23 Dec – 15 Jan 2027: $569, found 2 days ago24 Dec – 6 Jan 2027: $536, found yesterday28 Dec – 26 Feb 2027: $710, found 6 days ago6 Jan 2027 – 20 Jan 2027: $544, found 4 days ago7 Jan 2027 – 11 Jan 2027: $535, found yesterday27 Jan 2027 – 5 Feb 2027: $717, found 2 days ago30 Jan 2027 – 7 Feb 2027: $752, found 6 days ago31 Jan 2027 – 8 Feb 2027: $709, found 6 days ago1 Feb 2027 – 9 Feb 2027: $679, found 6 days ago20 Mar 2027 – 3 Apr 2027: $641, found 6 days ago16 Jul 2027 – 26 Jul 2027: $695, found 2 days ago17 Jul 2027 – 26 Jul 2027: $735, found 2 days ago30 Aug 2027 – 10 Sept 2027: $671, found 6 days agoOctNovDecJanJulAug
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
21 Oct – 3 Nov$452China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
22 Oct – 3 Nov$974T'way AirGimpo International Airport (GMP) → Sabiha Gokcen International Airport (SAW)out 3 stops, back 1 stopfound 4 days agoSee prices for these dates
26 Oct – 4 Nov$399China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
29 Oct – 20 Nov$594Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
2 Nov – 14 Nov$824China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 2 stopsfound 6 days agoSee prices for these dates
16 Nov – 30 Nov$515China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
25 Nov – 14 Dec$576Turkmenistan AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
26 Nov – 11 Dec$522China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound todaySee prices for these dates
4 Dec – 9 Dec$558China Southern AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
15 Dec – 4 Jan 2027$510Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
17 Dec – 23 Dec$512China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
20 Dec – 15 Jan 2027$583Air ChinaGimpo International Airport (GMP) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
23 Dec – 15 Jan 2027$569China Southern AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
24 Dec – 6 Jan 2027$536Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
28 Dec – 26 Feb 2027$710Qatar AirwaysIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
6 Jan 2027 – 20 Jan 2027$544Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
7 Jan 2027 – 11 Jan 2027$535Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
27 Jan 2027 – 5 Feb 2027$717Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
30 Jan 2027 – 7 Feb 2027$752Air ChinaGimpo International Airport (GMP) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
31 Jan 2027 – 8 Feb 2027$709Etihad AirwaysIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
1 Feb 2027 – 9 Feb 2027$679Etihad AirwaysIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
20 Mar 2027 – 3 Apr 2027$641China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
16 Jul 2027 – 26 Jul 2027$695China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
17 Jul 2027 – 26 Jul 2027$735China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
30 Aug 2027 – 10 Sept 2027$671Qatar AirwaysIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates

Which month looks cheapest?

October 2026 is the cheapest month — from $399.

October 2026From $399Cheapest seen4 departure dates26 Oct – 4 Nov · found 6 days agoSee prices for these dates
November 2026From $5154 departure dates16 Nov – 30 Nov · found 4 days agoSee prices for these dates
December 2026From $5107 departure dates15 Dec – 4 Jan 2027 · found 5 days agoSee prices for these datesEvery date in December 2026
January 2027From $5355 departure dates7 Jan 2027 – 11 Jan 2027 · found yesterdaySee prices for these dates
February 2027From $6791 departure date1 Feb 2027 – 9 Feb 2027 · found 6 days agoSee prices for these dates
March 2027From $6411 departure date20 Mar 2027 – 3 Apr 2027 · found 6 days agoSee prices for these dates
July 2027From $6952 departure dates16 Jul 2027 – 26 Jul 2027 · found 2 days agoSee prices for these dates
August 2027From $6711 departure date30 Aug 2027 – 10 Sept 2027 · found 6 days agoSee prices for these dates

Airlines on the cheapest dates: China Eastern, Air China, China Southern Airlines, Qatar Airways, Etihad Airways, T'way Air, Turkmenistan Airlines.

One-way

The cheapest one-way fare on each of 3 departure dates is usually $322 to $366.

Cheapest one-way found recently

$285

26 Oct · China Eastern

Incheon International Airport (ICN) → Istanbul New Airport (IST)

Leaves 7:55 p.m. · 17 h 5 min trip

stops unknown

found yesterday

Open this tripCheck today's price

Cheapest nonstop one-way

None seen yet.

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Found recently, and the cheapest we hold

Cheapest found recently $285 26 Octfound yesterdayOpen this trip

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $14 to $369.

$285, the cheapest one-way found recently, sits here in that range of $14 to $369.

25 days is a short history, so treat this range as an early guide.

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

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 3 departure dates from 21 Oct to 12 Sept 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 26 Oct to compare.

Every date we hold

4 fares on 3 departure dates

21 Oct: $359, found 2 days ago26 Oct: $285, found yesterday12 Sept 2027: $373, found 5 days agoOctSep
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
21 Oct$359China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)stops unknownfound 2 days agoOpen this trip
26 Oct$285China EasternIncheon International Airport (ICN) → Istanbul New Airport (IST)stops unknownfound yesterdayOpen this trip
12 Sept 2027$373China EasternGimpo International Airport (GMP) → Istanbul New Airport (IST)1 stopfound 5 days agoOpen this trip

Which month looks cheapest?

October 2026 is the cheapest month — from $285.

October 2026From $285Cheapest seen2 departure dates26 Oct · found yesterdayOpen this trip
September 2027From $3731 departure date12 Sept 2027 · found 5 days agoOpen this trip

Airlines on the cheapest dates: China Eastern.

Premium cabin fares from Seoul to Istanbul

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 17 Dec – 23 Dec in another cabin: Premium economy · Business · First

Today's prices for 26 Oct in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Seoul to Istanbul?

Return

Fares 7 to 13 days before departure were typically 18% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 18 Oct (25 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.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$533$409+22%18
7–13 days$437$399Cheapest seen16
14–29 days$515$422+18%23
30–59 days$516$510+18%25
60–89 days$501$499+15%25
90–179 days$555$547+27%25
180+ days$652$637+49%24

One-way

Not enough history yet: in 25 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.

Live price for these dates

The cheapest return found recently is for 17 Dec – 23 Dec. A live search on this page shows what those dates cost now, for one adult in economy.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work