Cheap flights from Istanbul to Seoul from $640 IST, SAW → GMP, ICN
Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $640 with China Eastern, 2 Dec – 22 Dec, found 2 days ago.
- Cheapest return found recently
- $640, 2 Dec to 22 Dec
- Usual return price
- $596 to $680
- Cheapest month to fly
- December 2026, return fares from $513 found in the last 7 days
- Airlines with nonstop flights
- Korean Air, Turkish Airlines, Asiana Airlines
Return
The cheapest return fare on each of 32 departure dates is usually $596 to $680.
Cheapest return found recently
$640
2 Dec – 22 Dec · China Eastern
Istanbul New Airport (IST) → Incheon International Airport (ICN)
Leaves 10:00 p.m. · Return leaves 1:00 p.m. · 31 h 25 min of travel, both ways together
out 1 stop, back 1 stop · via Ashgabat Airport (ASB), Xianyang International Airport (XIY) · overnight connection
found 2 days ago
Cheapest nonstop return
$865
2 Dec – 21 Dec · Korean Air
Istanbul New Airport (IST) → Incheon International Airport (ICN)
Leaves 9:55 p.m. · Return leaves 2:05 a.m. · 22 h 10 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Every nonstop date from Istanbul to Seoul
Found recently, and the cheapest we hold
$640 2 Dec – 22 Decfound 2 days agoSee prices for these dates
$513 3 Dec – 14 Decfound 5 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $462 to $576.
At $640, the cheapest return found recently is above that range.
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 32 departure dates from 23 Nov to 1 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 20-night return fares leaving within 3 days of 2 Dec to compare.
Every date we hold
497 fares on 32 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Nov – 18 Dec | $661 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 1 Dec – 30 Jan 2027 | $649 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 2 Dec – 21 Dec | $556 | China Eastern | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 3 Dec – 14 Dec | $513 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 10 Dec – 31 Dec | $576 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 24 Jan 2027 – 5 Feb 2027 | $654 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 1 Feb 2027 – 24 Feb 2027 | $585 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 3 Feb 2027 – 14 Feb 2027 | $615 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 8 Feb 2027 – 25 Feb 2027 | $596 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 22 Feb 2027 – 11 Mar 2027 | $594 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 23 Feb 2027 – 2 Mar 2027 | $648 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 24 Feb 2027 – 10 Mar 2027 | $596 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 2 Mar 2027 – 20 Mar 2027 | $647 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 7 Mar 2027 – 17 Mar 2027 | $639 | MIAT Mongolian Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 15 Mar 2027 – 25 Mar 2027 | $596 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 21 Mar 2027 – 3 Apr 2027 | $804 | Qanot Sharq | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 22 Mar 2027 – 29 Mar 2027 | $639 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 24 Mar 2027 – 31 Mar 2027 | $666 | Turkmenistan Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 5 Apr 2027 – 8 Apr 2027 | $658 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 5 May 2027 – 14 May 2027 | $624 | Qatar Airways | Sabiha Gokcen International Airport (SAW) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 15 May 2027 – 20 May 2027 | $720 | Turkish Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 30 May 2027 – 20 Jun 2027 | $724 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Jun 2027 – 29 Jun 2027 | $656 | 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 dates |
| 3 Jun 2027 – 25 Jun 2027 | $588 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 20 Jun 2027 – 20 Jul 2027 | $606 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 30 Jun 2027 – 8 Jul 2027 | $640 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 1 Jul 2027 – 15 Aug 2027 | $735 | China Southern Airlines | Istanbul New Airport (IST) → Gimpo International Airport (GMP) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 2 Jul 2027 – 18 Jul 2027 | $648 | Qatar Airways | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 26 Jul 2027 – 4 Aug 2027 | $735 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 27 Jul 2027 – 5 Aug 2027 | $735 | China Southern Airlines | Istanbul New Airport (IST) → Gimpo International Airport (GMP) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 31 Jul 2027 – 6 Aug 2027 | $768 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 1 Aug 2027 – 2 Sept 2027 | $820 | China Southern Airlines | Istanbul New Airport (IST) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $513.
Airlines on the cheapest dates: China Southern Airlines, Turkmenistan Airlines, Qatar Airways, China Eastern, MIAT Mongolian Airlines, Qanot Sharq, Turkish Airlines.
Premium cabin fares from Istanbul to Seoul
Return
Business
The lowest business fare we have seen is $2,237, across 6 departure dates.
18 Nov – 29 Nov · IST → ICN · MIAT Mongolian Airlines
out 1 stop, back 1 stop · via ASB, UBN · overnight connection · 8 h connection
found 6 days ago
That business fare is 4.4 times the economy fare of $513.
Today's prices for 2 Dec – 22 Dec in another cabin: Premium economy · Business · First
One-way
Business
The lowest business fare we have seen is $1,089, across 6 departure dates.
24 Nov · IST → ICN · Turkmenistan Airlines
1 stop · via ASB
found 3 days ago
How far ahead were prices cheapest for Istanbul to Seoul?
Return
Fares 30 to 59 days before departure were typically 27% lower than 7 to 13 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 7–13 days | $682 | $596 | +36% | 12 |
| 14–29 days | $620 | $468 | +24% | 34 |
| 30–59 days | $501 | $462 | Cheapest seen | 37 |
| 60–89 days | $505 | $462 | +1% | 48 |
| 90–179 days | $562 | $468 | +12% | 49 |
| 180+ days | $549 | $530 | +10% | 49 |
Live price for these dates
The cheapest return found recently is for 2 Dec – 22 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Istanbul to Seoul?
The cheapest return found recently is $640 with China Eastern, 2 Dec to 22 Dec, found 2 days ago. The cheapest return we hold, of any age, is $513 with China Southern Airlines, 3 Dec to 14 Dec, found 5 days ago. The cheapest return fare on each of 32 departure dates is usually $596 to $680.
What is the cheapest month to fly from Istanbul to Seoul?
December 2026 is the cheapest month for a return, from $513, 3 Dec to 14 Dec, found 5 days ago.
How far ahead should I book a flight from Istanbul to Seoul?
In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 27% lower than 7 to 13 days before departure.
Is there a direct flight from Istanbul to Seoul?
Yes, the cheapest nonstop return found recently is $865 with Korean Air, 2 Dec to 21 Dec, found 2 days ago.
Which airlines have the cheapest flights from Istanbul to Seoul?
Between 23 Nov and 1 Aug 2027, China Southern Airlines has the cheapest return on 12 of the 32 departure dates we hold, Turkmenistan Airlines on 8 and Qatar Airways on 8.
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