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Istanbul to Seoul in March 2027 IST, SAW → GMP, ICN

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

For departures in March 2027, the cheapest return found recently is $650 with China Southern Airlines, 21 Mar 2027 – 10 Apr 2027, found yesterday.

Return

In March 2027, the cheapest return fare on each of 11 departure dates is usually $614 to $721. Across all 48 departure dates we hold on this route, it is usually $557 to $696. Of the 8 months with enough return fares to compare, 4 are usually cheaper than March 2027.

Cheapest return found recently

$650

21 Mar 2027 – 10 Apr 2027 · China Southern Airlines

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

out 1 stop, back 1 stop

found yesterday

See prices for these datesCheck today's price

Cheapest we hold, of any age

$543

20 Mar 2027 – 3 Apr 2027 · China Southern Airlines

Istanbul New Airport (IST) → Gimpo International Airport (GMP)

out 1 stop, back 1 stop

found 2 days ago

See prices for these datesCheck today's price

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The cheapest dates in March 2027

DatesFromAirlineStopsFound
20 Mar 2027 – 3 Apr 2027$543China Southern Airlinesout 1 stop, back 1 stopfound 2 days agoSee prices for these dates
27 Mar 2027 – 10 Apr 2027$549China Southern Airlinesout 1 stop, back 1 stopfound 6 days agoSee prices for these dates
11 Mar 2027 – 18 Mar 2027$599Centrum Airout 1 stop, back 1 stopfound 4 days agoSee prices for these dates
16 Mar 2027 – 23 Mar 2027$629Turkmenistan Airlinesout 1 stop, back 1 stopfound 3 days agoSee prices for these dates
21 Mar 2027 – 10 Apr 2027$650China Southern Airlinesout 1 stop, back 1 stopfound yesterdaySee prices for these dates

Every date we hold

11 departure dates

6 Mar 2027 – 17 Mar 2027: $822, found 2 days ago11 Mar 2027 – 18 Mar 2027: $599, found 4 days ago13 Mar 2027 – 21 Mar 2027: $776, found 2 days ago16 Mar 2027 – 23 Mar 2027: $629, found 3 days ago19 Mar 2027 – 4 Apr 2027: $651, found 6 days ago20 Mar 2027 – 3 Apr 2027: $543, found 2 days ago21 Mar 2027 – 10 Apr 2027: $650, found yesterday23 Mar 2027 – 10 Apr 2027: $671, found 3 days ago25 Mar 2027 – 2 Apr 2027: $757, found today27 Mar 2027 – 10 Apr 2027: $549, found 6 days ago31 Mar 2027 – 7 Apr 2027: $684, found 2 days agoMar
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
6 Mar 2027 – 17 Mar 2027$822THAI AirwaysIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
11 Mar 2027 – 18 Mar 2027$599Centrum AirIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 4 days agoSee prices for these dates
13 Mar 2027 – 21 Mar 2027$776China Southern AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
16 Mar 2027 – 23 Mar 2027$629Turkmenistan AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
19 Mar 2027 – 4 Apr 2027$651China Southern AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
20 Mar 2027 – 3 Apr 2027$543China Southern AirlinesIstanbul New Airport (IST) → Gimpo International Airport (GMP)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates
21 Mar 2027 – 10 Apr 2027$650China Southern AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
23 Mar 2027 – 10 Apr 2027$671Turkmenistan AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 3 days agoSee prices for these dates
25 Mar 2027 – 2 Apr 2027$757Centrum AirIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound todaySee prices for these dates
27 Mar 2027 – 10 Apr 2027$549China Southern AirlinesIstanbul New Airport (IST) → Gimpo International Airport (GMP)out 1 stop, back 1 stopfound 6 days agoSee prices for these dates
31 Mar 2027 – 7 Apr 2027$684China Southern AirlinesIstanbul New Airport (IST) → Incheon International Airport (ICN)out 1 stop, back 1 stopfound 2 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $462.

October 2026From $5815 departure dates27 Oct – 9 Dec · found 7 days agoSee prices for these dates
November 2026From $4685 departure dates5 Nov – 18 Nov · found 20 hours agoSee prices for these dates
December 2026From $462Cheapest seen5 departure dates11 Dec – 8 Jan 2027 · found 7 days agoSee prices for these dates
January 2027From $4953 departure dates10 Jan 2027 – 18 Jan 2027 · found 5 days agoSee prices for these dates
February 2027From $5763 departure dates24 Feb 2027 – 10 Mar 2027 · found yesterdaySee prices for these dates
March 2027From $54311 departure dates20 Mar 2027 – 3 Apr 2027 · found 2 days agoSee prices for these dates
April 2027From $5459 departure dates5 Apr 2027 – 15 Apr 2027 · found 4 days agoSee prices for these datesEvery date in April 2027
May 2027From $6325 departure dates24 May 2027 – 29 May 2027 · found 2 days agoSee prices for these dates
June 2027From $5531 departure date15 Jun 2027 – 26 Jun 2027 · found 7 days agoSee prices for these dates
July 2027From $5491 departure date1 Jul 2027 – 12 Jul 2027 · found 6 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