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Cheap flights from Illinois to Istanbul from $297

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Istanbul departing on 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Illinois to Istanbul

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
5:35 pm - 9:00 pm
STL
-
SAW
19h 25m
2 stops
KLM Logo
8:50 am - 9:19 pm
SAW
-
STL
20h 29m
2 stops
$608KLM
Mon, Apr 27 - Tue, May 5
Multiple Airlines Logo
5:21 pm - 4:55 pm
STL
-
IST
15h 34m
2 stops
Multiple Airlines Logo
4:25 am - 3:32 pm
IST
-
STL
19h 07m
2 stops
$610Multiple Airlines
Wed, Mar 18 - Wed, Apr 15
KLM Logo
1:39 pm - 5:25 pm
STL
-
SAW
19h 46m
2 stops
KLM Logo
8:50 am - 11:36 pm
SAW
-
STL
22h 46m
2 stops
$615KLM
Wed, Mar 18 - Wed, Apr 15
KLM Logo
1:39 pm - 4:55 pm
STL
-
IST
19h 16m
2 stops
KLM Logo
6:00 am - 2:29 pm
IST
-
STL
16h 29m
2 stops
$621KLM
Wed, Mar 18 - Wed, Apr 15
Multiple Airlines Logo
4:05 pm - 9:25 pm
STL
-
IST
21h 20m
2 stops
Multiple Airlines Logo
3:45 am - 12:06 pm
IST
-
STL
40h 21m
2 stops
$629Multiple Airlines
Mon, Apr 27 - Mon, May 4
United Airlines Logo
7:45 am - 9:25 pm
STL
-
IST
29h 40m
2 stops
United Airlines Logo
5:40 am - 10:28 pm
IST
-
STL
24h 48m
2 stops
$648United Airlines
Wed, Apr 15 - Wed, Apr 22
Delta Logo
5:59 pm - 3:30 am
STL
-
IST
25h 31m
2 stops
Delta Logo
4:25 am - 9:06 pm
IST
-
STL
24h 41m
2 stops
$689Delta
Mon, Mar 30 - Mon, Apr 6
Scandinavian Airlines Logo
7:15 pm - 3:40 am
ORD
-
IST
24h 25m
1 stop
Scandinavian Airlines Logo
4:30 am - 9:57 pm
IST
-
ORD
25h 27m
3 stops
$694Scandinavian Airlines
Mon, Mar 30 - Mon, Apr 13
Scandinavian Airlines Logo
7:00 am - 3:40 am
ORD
-
IST
36h 40m
2 stops
Scandinavian Airlines Logo
4:30 am - 4:10 pm
IST
-
ORD
19h 40m
1 stop
$696Scandinavian Airlines
Tue, May 12 - Tue, May 26
Delta Logo
6:36 pm - 3:30 am
MDW
-
IST
24h 54m
2 stops
Delta Logo
6:00 am - 6:33 pm
IST
-
MDW
20h 33m
2 stops
$884Delta
Sun, May 10 - Thu, May 21

KLM flights from Illinois to Istanbul

Our best KLM deals on Illinois to Istanbul flight tickets
KLM
Apr 27
STL5:35 pmLambert-St Louis
19h 25m
2 stops
SAW9:00 pmIstanbul Sabiha Gokcen
May 5
SAW8:50 amIstanbul Sabiha Gokcen
20h 29m
2 stops
STL9:19 pmLambert-St Louis
$608
KLM
Mar 18
STL1:39 pmLambert-St Louis
19h 46m
2 stops
SAW5:25 pmIstanbul Sabiha Gokcen
Apr 15
SAW8:50 amIstanbul Sabiha Gokcen
22h 46m
2 stops
STL11:36 pmLambert-St Louis
$615
KLM
Mar 18
STL1:39 pmLambert-St Louis
19h 16m
2 stops
IST4:55 pmIstanbul
Apr 15
IST6:00 amIstanbul
16h 29m
2 stops
STL2:29 pmLambert-St Louis
$621

United Airlines flights from Illinois to Istanbul

Our best United Airlines deals on Illinois to Istanbul flight tickets
United Airlines
Apr 15
STL7:45 amLambert-St Louis
29h 40m
2 stops
IST9:25 pmIstanbul
Apr 22
IST5:40 amIstanbul
24h 48m
2 stops
STL10:28 pmLambert-St Louis
$648
United Airlines
Apr 15
STL7:45 amLambert-St Louis
29h 40m
2 stops
IST9:25 pmIstanbul
Apr 22
IST5:40 amIstanbul
15h 45m
1 stop
STL1:25 pmLambert-St Louis
$778
United Airlines
Aug 16
STL3:30 pmLambert-St Louis
13h 30m
1 stop
IST1:00 pmIstanbul
Aug 31
IST1:55 pmIstanbul
31h 30m
1 stop
STL1:25 pmLambert-St Louis
$790

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 2, 2026.
Use the filters below to find and compare flights from Illinois to Istanbul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Mon 4/27

5:35 pm-9:00 pm

2 stops19h 25m

Istanbul Sabiha Gokcen

Tue 5/5

8:50 am-9:19 pm

2 stops20h 29m

$608

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

5:21 pm-4:55 pm

2 stops15h 34m

Istanbul

Wed 4/15

4:25 am-3:32 pm

2 stops19h 07m

$610

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 3/18

1:39 pm-5:25 pm

2 stops19h 46m

Istanbul Sabiha Gokcen

Wed 4/15

8:50 am-11:36 pm

2 stops22h 46m

$615

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

1:39 pm-4:55 pm

2 stops19h 16m

Istanbul

Wed 4/15

6:00 am-2:29 pm

2 stops16h 29m

$621

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/27

4:05 pm-9:25 pm

2 stops21h 20m

Istanbul

Mon 5/4

3:45 am-12:06 pm

2 stops40h 21m

$629

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 4/15

7:45 am-9:25 pm

2 stops29h 40m

Istanbul

Wed 4/22

5:40 am-10:28 pm

2 stops24h 48m

$648

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 3/30

5:59 pm-3:30 am

2 stops25h 31m

Istanbul

Mon 4/6

4:25 am-9:06 pm

2 stops24h 41m

$689

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 3/30

7:15 pm-3:40 am

1 stop24h 25m

Istanbul

Mon 4/13

4:30 am-9:57 pm

3 stops25h 27m

$694

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 5/12

7:00 am-3:40 am

2 stops36h 40m

Istanbul

Tue 5/26

4:30 am-4:10 pm

1 stop19h 40m

$696

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Sun 5/10

6:36 pm-3:30 am

2 stops24h 54m

Istanbul

Thu 5/21

6:00 am-6:33 pm

2 stops20h 33m

$884

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Istanbul from

How to get the cheapest flight ticket from Illinois to Istanbul

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Istanbul?

In general, February is the cheapest month to fly from Illinois to Istanbul. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $802. If you aren’t able to travel to Istanbul during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $886.

What is the cheapest day to depart on your flight to Istanbul?

The cheapest day to depart from Illinois to Istanbul is on a Wednesday when prices can be found for as low as $894. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to Istanbul on Friday is $984.

What is the cheapest time of day to depart on your flight to Istanbul?

Our most recent data shows that the best time of day to fly to Istanbul is in the morning. Flights from Illinois to Istanbul during this time can be as low as $913. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $947 on average. Flights to Istanbul from Illinois in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Illinois to Istanbul flight route?

Fly from Chicago O'Hare Intl to Istanbul for the best Illinois - Istanbul flight prices

How far in advance should I book a flight to Istanbul?

You are more likely to see cheaper flights to Istanbul from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul for around $1,010 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul from Illinois for as low as $805 on momondo.

What cabin class options are available on Illinois to Istanbul flights?

There are 3 cabin classes available to choose from on Illinois to Istanbul flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Istanbul flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Istanbul

Fastest flight time

10h 20m

Direct flights

Every day

Airports in Istanbul

2 airports
The fastest flight from Illinois to Istanbul takes 10h 20m
Direct flights go from Illinois to Istanbul every day.
There are 2 airports in Istanbul. From Illinois there are direct flights to Istanbul (IST).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Istanbul?

    Prices for flights from Illinois to Istanbul are updated daily.

  • How many operators does momondo search for flights from Illinois to Istanbul?

  • How old do you have to be to fly from Illinois to Istanbul?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Istanbul.

  • What documentation or ID do you need to fly to Istanbul?

    The required travel and health documents for your Istanbul trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Istanbul. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Istanbul

Compare and see reviews for airlines that fly from Illinois to Istanbul with momondo
Airline
Rating
Free Cancellation
Price
Royal JordanianPriceFrom $127Free CancellationRating
6.7
453 reviews
Search Royal Jordanian flights
IcelandairPriceFrom $421Free CancellationRating
7.1
617 reviews
Search Icelandair flights
Air SerbiaPriceFrom $439Free CancellationRating
6.1
214 reviews
Search Air Serbia flights
Scandinavian AirlinesPriceFrom $521Free CancellationRating
7.3
1,702 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,369 reviews
Search American Airlines flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,237 reviews
Search Delta flights
Turkish AirlinesPriceFrom $616Free CancellationRating
7.3
4,240 reviews
Search Turkish Airlines flights
KLMPriceFrom $719Free CancellationRating
7.7
1,461 reviews
Search KLM flights
LOTPriceFrom $755Free CancellationRating
7.5
1,182 reviews
Search LOT flights
Etihad AirwaysPriceFrom $757Free CancellationRating
7.3
1,420 reviews
Search Etihad Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Istanbul?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Illinois to Istanbul. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Illinois to Istanbul with flexible booking policies on momondo?

Flights from Illinois to Istanbul with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Illinois to Istanbul?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Istanbul.

I’m not ready to book a flight from Illinois to Istanbul right now. Can momondo alert me if prices change?

Price alerts on flights to Istanbul from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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Find better results for your trip to Turkey

Fly into one of these airports located in Istanbul

Airports listed have a maximum distance of 20.9 mi from Istanbul
Istanbul Airport
Istanbul Sabiha Gokcen Airport