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Cheap flights from Illinois to Istanbul from $438

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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Illinois to Istanbul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
3:57 pm - 3:30 am
STL
-
IST
27h 33m
2 stops
Delta Logo
4:25 am - 11:53 pm
IST
-
STL
27h 28m
2 stops
$683Delta
Wed, Jul 15 - Tue, Jul 21
Lufthansa Logo
3:15 pm - 10:45 pm
STL
-
IST
23h 30m
2 stops
Lufthansa Logo
4:45 am - 1:45 pm
IST
-
STL
18h 00m
2 stops
$794Lufthansa
Wed, Oct 28 - Tue, Nov 3
Lufthansa Logo
4:40 pm - 10:45 pm
STL
-
IST
22h 05m
1 stop
Lufthansa Logo
4:45 am - 1:45 pm
IST
-
STL
18h 00m
2 stops
$803Lufthansa
Wed, Oct 28 - Tue, Nov 3
Scandinavian Airlines Logo
1:30 pm - 3:40 am
STL
-
IST
30h 10m
2 stops
Scandinavian Airlines Logo
5:30 am - 11:39 pm
IST
-
STL
27h 09m
2 stops
$837Scandinavian Airlines
Tue, Oct 20 - Mon, Dec 7
Multiple Airlines Logo
6:30 pm - 4:30 am
ORD
-
IST
25h 00m
3 stops
Multiple Airlines Logo
5:30 am - 5:20 pm
IST
-
ORD
20h 50m
3 stops
$931Multiple Airlines
Sat, Nov 7 - Sat, Nov 21
Qatar Airways Logo
6:50 pm - 12:10 pm
ORD
-
SAW
33h 20m
1 stop
Qatar Airways Logo
1:40 pm - 2:15 pm
SAW
-
ORD
33h 35m
2 stops
$932Qatar Airways
Thu, Oct 29 - Tue, Nov 3
Qatar Airways Logo
6:50 pm - 12:10 pm
ORD
-
SAW
32h 20m
1 stop
Qatar Airways Logo
1:40 pm - 2:30 pm
SAW
-
ORD
33h 50m
1 stop
$933Qatar Airways
Wed, Dec 2 - Wed, Dec 9
Turkish Airlines Logo
11:25 am - 5:45 am
ORD
-
IST
10h 20mnonstop
Turkish Airlines Logo
7:35 am - 10:00 am
IST
-
ORD
11h 25mnonstop
$933Turkish Airlines
Wed, Oct 21 - Wed, Nov 11
Turkish Airlines Logo
11:25 am - 5:45 am
ORD
-
IST
10h 20mnonstop
Turkish Airlines Logo
6:30 am - 9:40 am
IST
-
ORD
11h 10mnonstop
$934Turkish Airlines
Thu, Sep 3 - Wed, Sep 9
Multiple Airlines Logo
8:10 pm - 2:50 pm
ORD
-
IST
10h 40mnonstop
Multiple Airlines Logo
10:40 pm - 5:20 pm
IST
-
ORD
27h 40m
3 stops
$935Multiple Airlines
Sun, Oct 18 - Sun, Nov 15

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United Airlines flights from Illinois to Istanbul

Our best United Airlines deals on Illinois to Istanbul flight tickets
United Airlines
Sep 30
STL3:30 pmLambert-St Louis
21h 55m
1 stop
IST9:25 pmIstanbul
Nov 2
IST6:30 amIstanbul
25h 55m
2 stops
STL11:25 pmLambert-St Louis
$977
United Airlines
Sep 30
STL7:30 amLambert-St Louis
21h 30m
2 stops
IST1:00 pmIstanbul
Nov 2
IST6:30 amIstanbul
24h 36m
2 stops
STL10:06 pmLambert-St Louis
$981
United Airlines
Sep 16
STL3:30 pmLambert-St Louis
21h 55m
1 stop
IST9:25 pmIstanbul
Oct 20
IST5:40 amIstanbul
15h 45m
1 stop
STL1:25 pmLambert-St Louis
$1,003

Air Canada flights from Illinois to Istanbul

Our best Air Canada deals on Illinois to Istanbul flight tickets
Air Canada
Sep 20
STL12:10 pmLambert-St Louis
16h 50m
2 stops
IST1:00 pmIstanbul
Oct 15
IST5:40 amIstanbul
40h 20m
2 stops
STL2:00 pmLambert-St Louis
$1,014
Air Canada
Sep 20
STL12:10 pmLambert-St Louis
16h 50m
2 stops
IST1:00 pmIstanbul
Oct 19
IST10:40 amIstanbul
41h 20m
2 stops
STL8:00 pmLambert-St Louis
$1,018
Air Canada
Jun 22
STL1:20 pmLambert-St Louis
15h 40m
2 stops
IST1:00 pmIstanbul
Jul 9
IST5:40 amIstanbul
21h 02m
2 stops
STL6:42 pmLambert-St Louis
$1,683

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 June 13, 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

Wed 7/15

3:57 pm-3:30 am

2 stops27h 33m

Istanbul

Tue 7/21

4:25 am-11:53 pm

2 stops27h 28m

$683

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 10/28

3:15 pm-10:45 pm

2 stops23h 30m

Istanbul

Tue 11/3

4:45 am-1:45 pm

2 stops18h 00m

$794

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 10/28

4:40 pm-10:45 pm

1 stop22h 05m

Istanbul

Tue 11/3

4:45 am-1:45 pm

2 stops18h 00m

$803

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 10/20

1:30 pm-3:40 am

2 stops30h 10m

Istanbul

Mon 12/7

5:30 am-11:39 pm

2 stops27h 09m

$837

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 11/7

6:30 pm-4:30 am

3 stops25h 00m

Istanbul

Sat 11/21

5:30 am-5:20 pm

3 stops20h 50m

$931

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Thu 10/29

6:50 pm-12:10 pm

1 stop33h 20m

Istanbul Sabiha Gokcen

Tue 11/3

1:40 pm-2:15 pm

2 stops33h 35m

$932

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Wed 12/2

6:50 pm-12:10 pm

1 stop32h 20m

Istanbul Sabiha Gokcen

Wed 12/9

1:40 pm-2:30 pm

1 stop33h 50m

$933

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 10/21

11:25 am-5:45 am

Nonstop10h 20m

Istanbul

Wed 11/11

7:35 am-10:00 am

Nonstop11h 25m

$933
Quickest round-trip

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 9/3

11:25 am-5:45 am

Nonstop10h 20m

Istanbul

Wed 9/9

6:30 am-9:40 am

Nonstop11h 10m

$934

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 10/18

8:10 pm-2:50 pm

Nonstop10h 40m

Istanbul

Sun 11/15

10:40 pm-5:20 pm

3 stops27h 40m

$935

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, March 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 $127. If you aren’t able to travel to Istanbul during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $231.

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 $886. 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 $950.

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 $897. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $922 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 from Illinois 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 $1,031 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 $827 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

9h 25m

Direct flights

Every day

Airports in Istanbul

2 airports
The fastest flight from Illinois to Istanbul takes 9h 25m
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
6.8
468 reviews
Search Royal Jordanian flights
British AirwaysPriceFrom $412Free CancellationRating
6.7
8,047 reviews
Search British Airways flights
IcelandairPriceFrom $421Free CancellationRating
7.0
674 reviews
Search Icelandair flights
Qatar AirwaysPriceFrom $529Free CancellationRating
7.3
3,726 reviews
Search Qatar Airways flights
Scandinavian AirlinesPriceFrom $541Free CancellationRating
7.4
1,824 reviews
Search Scandinavian Airlines flights
Air SerbiaPriceFrom $574Free CancellationRating
6.1
231 reviews
Search Air Serbia flights
DeltaPriceFrom $577Free CancellationRating
7.9
8,405 reviews
Search Delta flights
Turkish AirlinesPriceFrom $678Free CancellationRating
7.4
4,411 reviews
Search Turkish Airlines flights
KLMPriceFrom $720Free CancellationRating
7.8
1,529 reviews
Search KLM flights
LufthansaPriceFrom $735Free CancellationRating
6.8
8,057 reviews
Search Lufthansa 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