Chicago to Istanbul MDW, ORD, RFD → IST, SAW
Chicago Midway International Airport (MDW), O'Hare International Airport (ORD), Chicago Rockford International Airport (RFD) → Istanbul New Airport (IST), Sabiha Gokcen International Airport (SAW)
The cheapest return found recently is $745 with Turkish Airlines, 12 Feb 2027 – 21 Feb 2027, found yesterday. The cheapest one-way found recently is $353 with Icelandair, 26 Oct, found 4 hours ago.
Return
The cheapest return fare on each of 22 departure dates is usually $786 to $1,013.
Cheapest return found recently
$745
12 Feb 2027 – 21 Feb 2027 · Turkish Airlines
O'Hare International Airport (ORD) → Istanbul New Airport (IST)
Leaves 8:15 p.m. · Return leaves 7:35 a.m. · 22 h 15 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Cheapest nonstop return
$745
12 Feb 2027 – 21 Feb 2027 · Turkish Airlines
O'Hare International Airport (ORD) → Istanbul New Airport (IST)
Leaves 8:15 p.m. · Return leaves 7:35 a.m. · 22 h 15 min of travel, both ways together
out nonstop, back nonstop
found yesterday
Every nonstop date from Chicago to Istanbul
Found recently, and the cheapest we hold
$745 12 Feb 2027 – 21 Feb 2027found yesterdaySee prices for these dates
$716 11 Jan 2027 – 17 Jan 2027found 5 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 $442 to $804.
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 22 departure dates from 22 Oct to 8 Apr 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 9-night return fares leaving within 3 days of 12 Feb 2027 to compare.
Every date we hold
165 fares on 22 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct – 15 Nov | $968 | LOT Polish | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 2 stops | found today | See prices for these dates |
| 23 Oct – 31 Oct | $1,013 | Egyptair | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 24 Oct – 26 Oct | $1,170 | TAP Air Portugal | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 3 stops, back nonstop | found 5 days ago | See prices for these dates |
| 26 Oct – 6 Nov | $918 | TAP Air Portugal | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 30 Oct – 5 Nov | $902 | Royal Jordanian | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 4 Dec – 4 Jan 2027 | $1,275 | TAP Air Portugal | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 2 stops, back 3 stops | found yesterday | See prices for these dates |
| 8 Dec – 8 Jan 2027 | $899 | LOT Polish | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found today | See prices for these dates |
| 16 Dec – 24 Dec | $1,063 | Icelandair | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 3 stops, back 3 stops | found 6 days ago | See prices for these dates |
| 21 Dec – 17 Jan 2027 | $1,124 | Air France | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 22 Dec – 3 Jan 2027 | $1,602 | Air Canada | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 2 stops, back 1 stop | found 5 days ago | See prices for these dates |
| 25 Dec – 9 Jan 2027 | $995 | LOT Polish | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 26 Dec – 4 Feb 2027 | $807 | LOT Polish | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 27 Dec – 9 Jan 2027 | $1,013 | LOT Polish | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 28 Dec – 10 Feb 2027 | $745 | Turkish Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 4 Jan 2027 – 11 Jan 2027 | $851 | British Airways | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 6 Jan 2027 – 11 Jan 2027 | $851 | Lufthansa | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 Jan 2027 – 17 Jan 2027 | $716 | SAS Scandinavian | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 2 stops | found 5 days ago | See prices for these dates |
| 12 Jan 2027 – 18 Jan 2027 | $779 | British Airways | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 15 Jan 2027 – 21 Jan 2027 | $745 | Turkish Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 1 Feb 2027 – 8 Feb 2027 | $745 | Turkish Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 12 Feb 2027 – 21 Feb 2027 | $745 | Turkish Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | out nonstop, back nonstop | found yesterday | See prices for these dates |
| 8 Apr 2027 – 12 Apr 2027 | $831 | Qatar Airways | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $716.
Airlines on the cheapest dates: LOT Polish, Turkish Airlines, TAP Air Portugal, British Airways, Egyptair, Royal Jordanian, Icelandair, Air France.
One-way
The cheapest one-way fare on each of 14 departure dates is usually $381 to $449.
Cheapest one-way found recently
$353
26 Oct · Icelandair
O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW)
Leaves 7:30 p.m. · 16 h 30 min trip
2 stops · via Keflavik International Airport (KEF), Copenhagen Airport (CPH) · connection may need a visa
found 4 hours ago
Cheapest nonstop one-way
$621
14 Apr 2027 · Turkish Airlines
O'Hare International Airport (ORD) → Istanbul New Airport (IST)
Leaves 11:20 a.m. · 10 h 25 min trip
nonstop
found yesterday
Every nonstop date from Chicago to Istanbul
Found recently, and the cheapest we hold
$353 26 Octfound 4 hours agoOpen 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 $325 to $382.
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 14 departure dates from 26 Oct to 1 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
93 fares on 14 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 26 Oct | $353 | Icelandair | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | 2 stops | found 4 hours ago | Open this trip |
| 8 Nov | $377 | Icelandair | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | 2 stops | found 4 days ago | Open this trip |
| 4 Jan 2027 | $496 | Qatar Airways | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
| 6 Jan 2027 | $481 | Air Serbia | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 2 stops | found 2 days ago | Open this trip |
| 23 Jan 2027 | $444 | United Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 3 days ago | Open this trip |
| 27 Jan 2027 | $399 | United Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 3 days ago | Open this trip |
| 9 Feb 2027 | $385 | United Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 2 stops | found 5 days ago | Open this trip |
| 15 Feb 2027 | $387 | Icelandair | O'Hare International Airport (ORD) → Sabiha Gokcen International Airport (SAW) | 2 stops | found 6 days ago | Open this trip |
| 25 Feb 2027 | $450 | United Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
| 13 Apr 2027 | $380 | Lufthansa | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 2 days ago | Open this trip |
| 14 Apr 2027 | $355 | British Airways | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found yesterday | Open this trip |
| 5 Jul 2027 | $451 | Lufthansa | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 5 days ago | Open this trip |
| 1 Aug 2027 | $399 | British Airways | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found 2 days ago | Open this trip |
| 1 Sept 2027 | $441 | United Airlines | O'Hare International Airport (ORD) → Istanbul New Airport (IST) | 1 stop | found yesterday | Open this trip |
Which month looks cheapest?
October 2026 is the cheapest month — from $353.
Airlines on the cheapest dates: United Airlines, Icelandair, Lufthansa, British Airways, Qatar Airways, Air Serbia.
Premium cabin fares from Chicago 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 12 Feb 2027 – 21 Feb 2027 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 Chicago to Istanbul?
Return
Fares 90 to 179 days before departure were typically 19% 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $919 | $871 | +24% | 22 |
| 7–13 days | $910 | $809 | +23% | 24 |
| 14–29 days | $880 | $772 | +19% | 22 |
| 30–59 days | $791 | $718 | +7% | 25 |
| 60–89 days | $817 | $716 | +10% | 25 |
| 90–179 days | $742 | $442 | Cheapest seen | 25 |
| 180+ days | $853 | $843 | +15% | 25 |
One-way
Fares 90 to 179 days before departure were typically 8% lower than 14 to 29 days before departure.
From the cheapest one-way 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $387 | $377 | +9% | 8 |
| 30–59 days | $484 | $330 | +36% | 11 |
| 60–89 days | $372 | $325 | +5% | 15 |
| 90–179 days | $355 | $334 | Cheapest seen | 25 |
| 180+ days | $389 | $383 | +10% | 25 |
Live price for these dates
The cheapest return found recently is for 12 Feb 2027 – 21 Feb 2027. 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