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Cheap flights from Illinois to Istanbul from $333

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 4/27. 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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0 bags

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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.
Delta Logo
5:19 pm - 3:30 am
STL
-
IST
26h 11m
2 stops
Delta Logo
6:00 am - 11:01 pm
IST
-
STL
25h 01m
2 stops
$639Delta
Tue, Jul 28 - Wed, Aug 26
Delta Logo
5:19 pm - 3:30 am
STL
-
IST
26h 11m
2 stops
Delta Logo
6:00 am - 8:31 pm
IST
-
STL
22h 31m
2 stops
$689Delta
Tue, Jul 28 - Mon, Aug 24
Delta Logo
5:19 pm - 3:30 am
STL
-
IST
26h 11m
2 stops
Delta Logo
4:25 am - 3:57 pm
IST
-
STL
19h 32m
2 stops
$690Delta
Tue, Jul 28 - Sun, Aug 23
Qatar Airways Logo
7:20 pm - 11:55 am
ORD
-
IST
32h 35m
1 stop
Qatar Airways Logo
8:05 pm - 3:05 pm
IST
-
ORD
27h 00m
1 stop
$764Qatar Airways
Tue, Oct 13 - Wed, Oct 21
Qatar Airways Logo
7:20 pm - 7:20 am
ORD
-
IST
28h 00m
1 stop
Qatar Airways Logo
5:00 pm - 4:50 pm
IST
-
ORD
31h 50m
1 stop
$766Qatar Airways
Wed, May 6 - Thu, May 21
Lufthansa Logo
8:43 am - 2:05 am
STL
-
IST
33h 22m
2 stops
Lufthansa Logo
5:40 am - 5:30 pm
IST
-
STL
19h 50m
2 stops
$823Lufthansa
Mon, Jul 27 - Tue, Aug 25
Multiple Airlines Logo
7:25 pm - 5:10 pm
ORD
-
SAW
37h 45m
2 stops
Multiple Airlines Logo
4:25 pm - 11:50 am
SAW
-
ORD
27h 25m
1 stop
$875Multiple Airlines
Mon, Apr 27 - Wed, Jun 10
Multiple Airlines Logo
7:25 pm - 5:10 pm
ORD
-
SAW
37h 45m
2 stops
Multiple Airlines Logo
4:25 pm - 11:50 am
SAW
-
ORD
27h 25m
1 stop
$877Multiple Airlines
Mon, Apr 27 - Sat, Jun 6
KLM Logo
4:50 pm - 9:00 pm
ORD
-
SAW
20h 10m
1 stop
KLM Logo
8:50 am - 2:15 pm
SAW
-
ORD
13h 25m
1 stop
$900KLM
Wed, Apr 29 - Fri, May 8
KLM Logo
3:30 pm - 5:05 pm
ORD
-
SAW
17h 35m
2 stops
KLM Logo
8:50 am - 2:15 pm
SAW
-
ORD
13h 25m
1 stop
$905KLM
Wed, Apr 29 - Fri, May 8

Delta flights from Illinois to Istanbul

Our best Delta deals on Illinois to Istanbul flight tickets
Delta
Jul 28
STL5:19 pmLambert-St Louis
26h 11m
2 stops
IST3:30 amIstanbul
Aug 26
IST6:00 amIstanbul
25h 01m
2 stops
STL11:01 pmLambert-St Louis
$639
Delta
Jul 28
STL5:19 pmLambert-St Louis
26h 11m
2 stops
IST3:30 amIstanbul
Aug 24
IST6:00 amIstanbul
22h 31m
2 stops
STL8:31 pmLambert-St Louis
$689
Delta
Jul 28
STL5:19 pmLambert-St Louis
26h 11m
2 stops
IST3:30 amIstanbul
Aug 23
IST4:25 amIstanbul
19h 32m
2 stops
STL3:57 pmLambert-St Louis
$690

Lufthansa flights from Illinois to Istanbul

Our best Lufthansa deals on Illinois to Istanbul flight tickets
Lufthansa
Jul 27
STL8:43 amLambert-St Louis
33h 22m
2 stops
IST2:05 amIstanbul
Aug 25
IST5:40 amIstanbul
19h 50m
2 stops
STL5:30 pmLambert-St Louis
$823
Lufthansa
Jul 28
STL1:13 pmLambert-St Louis
19h 42m
2 stops
IST4:55 pmIstanbul
Aug 25
IST5:40 amIstanbul
21h 16m
2 stops
STL6:56 pmLambert-St Louis
$834
Lufthansa
Jul 28
STL3:30 pmLambert-St Louis
21h 45m
1 stop
IST9:15 pmIstanbul
Aug 25
IST5:40 amIstanbul
21h 16m
2 stops
STL6:56 pmLambert-St Louis
$835

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 April 17, 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

Cheapest round-trip

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 7/28

5:19 pm-3:30 am

2 stops26h 11m

Istanbul

Wed 8/26

6:00 am-11:01 pm

2 stops25h 01m

$639

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 7/28

5:19 pm-3:30 am

2 stops26h 11m

Istanbul

Mon 8/24

6:00 am-8:31 pm

2 stops22h 31m

$689

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 7/28

5:19 pm-3:30 am

2 stops26h 11m

Istanbul

Sun 8/23

4:25 am-3:57 pm

2 stops19h 32m

$690

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 10/13

7:20 pm-11:55 am

1 stop32h 35m

Istanbul

Wed 10/21

8:05 pm-3:05 pm

1 stop27h 00m

$764

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 5/6

7:20 pm-7:20 am

1 stop28h 00m

Istanbul

Thu 5/21

5:00 pm-4:50 pm

1 stop31h 50m

$766

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 7/27

8:43 am-2:05 am

2 stops33h 22m

Istanbul

Tue 8/25

5:40 am-5:30 pm

2 stops19h 50m

$823

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Mon 4/27

7:25 pm-5:10 pm

2 stops37h 45m

Istanbul Sabiha Gokcen

Wed 6/10

4:25 pm-11:50 am

1 stop27h 25m

$875

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Mon 4/27

7:25 pm-5:10 pm

2 stops37h 45m

Istanbul Sabiha Gokcen

Sat 6/6

4:25 pm-11:50 am

1 stop27h 25m

$877

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Wed 4/29

4:50 pm-9:00 pm

1 stop20h 10m

Istanbul Sabiha Gokcen

Fri 5/8

8:50 am-2:15 pm

1 stop13h 25m

$900
Quickest round-trip

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Wed 4/29

3:30 pm-5:05 pm

2 stops17h 35m

Istanbul Sabiha Gokcen

Fri 5/8

8:50 am-2:15 pm

1 stop13h 25m

$905

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $879.

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 $882. 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 $962.

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 $902. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $926 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 $1,014 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 $819 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

Frequently asked questions about flying from Illinois to Istanbul

  • 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
457 reviews
Search Royal Jordanian flights
IcelandairPriceFrom $421Free CancellationRating
7.0
634 reviews
Search Icelandair flights
Air SerbiaPriceFrom $440Free CancellationRating
6.1
218 reviews
Search Air Serbia flights
Scandinavian AirlinesPriceFrom $521Free CancellationRating
7.3
1,751 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom $524Free CancellationRating
7.1
11,595 reviews
Search American Airlines flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,415 reviews
Search Delta flights
Turkish AirlinesPriceFrom $671Free CancellationRating
7.3
4,306 reviews
Search Turkish Airlines flights
KLMPriceFrom $719Free CancellationRating
7.8
1,502 reviews
Search KLM flights
LufthansaPriceFrom $744Free CancellationRating
6.8
7,930 reviews
Search Lufthansa flights
LOTPriceFrom $755Free CancellationRating
7.5
1,189 reviews
Search LOT 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