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Seoul to Istanbul flights in January 2027 from $641 GMP, ICN → IST, SAW

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

For departures in January 2027, the cheapest return found recently is $641 with Air China, 8 Jan 2027 – 16 Jan 2027, found 3 days ago.

Return

In January 2027, the cheapest return fare on each of 8 departure dates is usually $584 to $646. Across all 24 departure dates we hold on this route, it is usually $552 to $682. Of the 3 months with enough return fares to compare, January 2027 is usually the most expensive.

Cheapest return found recently

$641

8 Jan 2027 – 16 Jan 2027 · Air China

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

out 1 stop, back 1 stop

found 3 days ago

See prices for these datesCheck today's price

Cheapest we hold, of any age

$542

14 Jan 2027 – 27 Jan 2027 · Turkmenistan Airlines

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

out 1 stop, back 1 stop

found 5 days ago

See prices for these datesCheck today's price

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The cheapest dates in January 2027

DatesFromAirlineStopsFound
14 Jan 2027 – 27 Jan 2027$542Turkmenistan Airlinesout 1 stop, back 1 stopfound 5 days agoSee prices for these dates
6 Jan 2027 – 13 Jan 2027$564Turkmenistan Airlinesout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
1 Jan 2027 – 24 Jan 2027$591China Southern Airlinesout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
20 Jan 2027 – 29 Jan 2027$598Air Chinaout 1 stop, back 1 stopfound 7 days agoSee prices for these dates
8 Jan 2027 – 16 Jan 2027$641Air Chinaout 1 stop, back 1 stopfound 3 days agoSee prices for these dates

Every date we hold

8 departure dates

1 Jan 2027 – 24 Jan 2027: $591, found 6 days ago3 Jan 2027 – 11 Jan 2027: $641, found 7 days ago6 Jan 2027 – 13 Jan 2027: $564, found 7 days ago8 Jan 2027 – 16 Jan 2027: $641, found 3 days ago13 Jan 2027 – 15 Jan 2027: $660, found 6 days ago14 Jan 2027 – 27 Jan 2027: $542, found 5 days ago20 Jan 2027 – 29 Jan 2027: $598, found 7 days ago21 Jan 2027 – 29 Jan 2027: $710, found 6 days agoJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
1 Jan 2027 – 24 Jan 2027$591China Southern AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
3 Jan 2027 – 11 Jan 2027$641Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
6 Jan 2027 – 13 Jan 2027$564Turkmenistan AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
8 Jan 2027 – 16 Jan 2027$641Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
13 Jan 2027 – 15 Jan 2027$660Turkmenistan AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
14 Jan 2027 – 27 Jan 2027$542Turkmenistan AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 5 days agoSee prices for these dates
20 Jan 2027 – 29 Jan 2027$598Air ChinaIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 7 days agoSee prices for these dates
21 Jan 2027 – 29 Jan 2027$710China Southern AirlinesIncheon International Airport (ICN) → Istanbul New Airport (IST)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $496.

November 2026From $5163 departure dates24 Nov – 4 Dec · found 8 days agoSee prices for these dates
December 2026From $496Cheapest seen5 departure dates8 Dec – 10 Jan 2027 · found 4 days agoSee prices for these dates
January 2027From $5428 departure dates14 Jan 2027 – 27 Jan 2027 · found 5 days agoSee prices for these dates
February 2027From $6862 departure dates2 Feb 2027 – 7 Feb 2027 · found 4 days agoSee prices for these dates
March 2027From $6391 departure date3 Mar 2027 – 11 Mar 2027 · found 3 days agoSee prices for these dates
May 2027From $6802 departure dates24 May 2027 – 29 May 2027 · found 4 days agoSee prices for these dates
June 2027From $6441 departure date20 Jun 2027 – 22 Jul 2027 · found 6 days agoSee prices for these dates
July 2027From $7561 departure date19 Jul 2027 – 25 Jul 2027 · found 4 days agoSee prices for these dates
September 2027From $7251 departure date26 Sept 2027 – 5 Oct 2027 · found 2 days agoSee prices for these dates

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