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Cheap flights from Illinois to Istanbul from $289

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.
1 adult
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.
Lufthansa Logo
3:30 pm - 4:55 pm
STL
-
IST
17h 25m
1 stop
Lufthansa Logo
5:40 am - 1:25 pm
IST
-
STL
15h 45m
1 stop
$551Lufthansa
Wed, Apr 22 - Wed, May 6
British Airways Logo
11:45 am - 12:25 am
STL
-
IST
28h 40m
2 stops
British Airways Logo
7:55 pm - 4:41 pm
IST
-
STL
28h 46m
2 stops
$561British Airways
Wed, Apr 29 - Tue, May 5
United Airlines Logo
6:15 am - 9:25 pm
STL
-
IST
31h 10m
3 stops
United Airlines Logo
5:40 am - 1:25 pm
IST
-
STL
15h 45m
1 stop
$567United Airlines
Wed, Apr 22 - Wed, May 6
United Airlines Logo
6:15 am - 9:15 pm
STL
-
IST
31h 00m
3 stops
United Airlines Logo
1:55 pm - 12:06 pm
IST
-
STL
30h 11m
2 stops
$575United Airlines
Tue, Apr 21 - Tue, May 5
Multiple Airlines Logo
4:05 pm - 9:25 pm
STL
-
IST
21h 20m
2 stops
Multiple Airlines Logo
5:50 pm - 1:25 pm
IST
-
STL
27h 35m
1 stop
$592Multiple Airlines
Mon, Apr 27 - Tue, May 5
Multiple Airlines Logo
7:25 pm - 3:40 am
ORD
-
IST
24h 15m
3 stops
Multiple Airlines Logo
4:40 pm - 2:30 pm
IST
-
ORD
29h 50m
1 stop
$697Multiple Airlines
Sat, Apr 25 - Tue, May 5
Scandinavian Airlines Logo
7:15 pm - 3:40 am
ORD
-
IST
24h 25m
1 stop
Scandinavian Airlines Logo
4:30 am - 9:29 pm
IST
-
ORD
24h 59m
2 stops
$701Scandinavian Airlines
Mon, Mar 30 - Mon, Apr 13
Scandinavian Airlines Logo
7:15 pm - 3:40 am
ORD
-
IST
24h 25m
1 stop
Scandinavian Airlines Logo
4:30 am - 9:56 pm
IST
-
ORD
25h 26m
3 stops
$703Scandinavian Airlines
Wed, Apr 15 - Wed, Apr 22
KLM Logo
1:28 pm - 4:55 pm
MDW
-
IST
18h 27m
2 stops
KLM Logo
5:55 pm - 5:37 pm
IST
-
MDW
32h 42m
2 stops
$743KLM
Sat, Feb 21 - Thu, Feb 26
KLM Logo
1:26 pm - 4:55 pm
MDW
-
IST
18h 29m
2 stops
KLM Logo
4:50 am - 10:31 pm
IST
-
MDW
26h 41m
2 stops
$875KLM
Thu, Feb 19 - Tue, Mar 3

Lufthansa flights from Illinois to Istanbul Airport

Our best Lufthansa deals on Illinois to Istanbul Airport flight tickets
Lufthansa
Apr 22
STL3:30 pmLambert-St Louis
17h 25m
1 stop
IST4:55 pmIstanbul
May 6
IST5:40 amIstanbul
15h 45m
1 stop
STL1:25 pmLambert-St Louis
$551
Lufthansa
Apr 22
STL3:30 pmLambert-St Louis
21h 55m
1 stop
IST9:25 pmIstanbul
May 5
IST3:45 amIstanbul
27h 14m
2 stops
STL10:59 pmLambert-St Louis
$566
Lufthansa
Apr 29
STL3:30 pmLambert-St Louis
13h 30m
1 stop
IST1:00 pmIstanbul
May 5
IST1:55 pmIstanbul
31h 30m
1 stop
STL1:25 pmLambert-St Louis
$578

British Airways flights from Illinois to Istanbul Airport

Our best British Airways deals on Illinois to Istanbul Airport flight tickets
British Airways
Apr 29
STL11:45 amLambert-St Louis
28h 40m
2 stops
IST12:25 amIstanbul
May 5
IST7:55 pmIstanbul
28h 46m
2 stops
STL4:41 pmLambert-St Louis
$561
British Airways
Apr 21
STL9:35 pmLambert-St Louis
19h 30m
1 stop
IST1:05 amIstanbul
May 5
IST7:55 pmIstanbul
31h 35m
1 stop
STL7:30 pmLambert-St Louis
$590
British Airways
Mar 18
STL9:37 amLambert-St Louis
30h 48m
2 stops
IST12:25 amIstanbul
Mar 25
IST7:35 amIstanbul
24h 09m
2 stops
STL11:44 pmLambert-St Louis
$600

momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Istanbul Airport 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 February 9, 2026.
Use the filters below to find and compare flights from Illinois to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 4/22

3:30 pm-4:55 pm

1 stop17h 25m

Istanbul

Wed 5/6

5:40 am-1:25 pm

1 stop15h 45m

$551

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 4/29

11:45 am-12:25 am

2 stops28h 40m

Istanbul

Tue 5/5

7:55 pm-4:41 pm

2 stops28h 46m

$561

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 4/22

6:15 am-9:25 pm

3 stops31h 10m

Istanbul

Wed 5/6

5:40 am-1:25 pm

1 stop15h 45m

$567

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 4/21

6:15 am-9:15 pm

3 stops31h 00m

Istanbul

Tue 5/5

1:55 pm-12:06 pm

2 stops30h 11m

$575

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 4/27

4:05 pm-9:25 pm

2 stops21h 20m

Istanbul

Tue 5/5

5:50 pm-1:25 pm

1 stop27h 35m

$592

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 4/25

7:25 pm-3:40 am

3 stops24h 15m

Istanbul

Tue 5/5

4:40 pm-2:30 pm

1 stop29h 50m

$697

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-9:29 pm

2 stops24h 59m

$701

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 4/15

7:15 pm-3:40 am

1 stop24h 25m

Istanbul

Wed 4/22

4:30 am-9:56 pm

3 stops25h 26m

$703

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Sat 2/21

1:28 pm-4:55 pm

2 stops18h 27m

Istanbul

Thu 2/26

5:55 pm-5:37 pm

2 stops32h 42m

$743

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Thu 2/19

1:26 pm-4:55 pm

2 stops18h 29m

Istanbul

Tue 3/3

4:50 am-10:31 pm

2 stops26h 41m

$875

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 Airport

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 Airport?

In general, February is the cheapest month to fly from Illinois to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $755. If you don’t want to visit Istanbul Airport in February, then you should wait until November to fly from Illinois, when ticket prices are also cheap, with an average price of $886.

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

Our data shows that Wednesday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $897. On the other hand, Friday is the most expensive day to depart from Illinois because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $989.

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

In the morning is the cheapest time of day to fly from Illinois to Istanbul Airport when you can find flight prices for as low as $915. Flying to Istanbul Airport in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $950.

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 Airport?

You are more likely to see cheaper flights to Istanbul Airport from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $1,009 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from Illinois for as low as $834 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.

Can stopping save me money on Illinois to Istanbul Airport flights?

You could potentially save up to 5% on your flight if you consider stops on a Illinois to Istanbul Airport flight.

Cheap Illinois to Istanbul Airport flight deals and tips

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

Best Price Found

$491

Fastest flight time

10h 20m

Direct flights

Every day
The best one-way flight to Istanbul Airport from Illinois in the past 72 hours is $491. The best round-trip flight deal from Illinois to Istanbul Airport found on momondo in the last 72 hours is $677.
The fastest flight from Illinois to Istanbul Airport takes 10h 20m
Direct flights go from Illinois to Istanbul Airport every day.
Search flight deals

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

    Prices for flights from Illinois to Istanbul Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Illinois to Istanbul Airport.

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

    The travel and health documents required for your trip to Istanbul Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Istanbul Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Illinois to Istanbul Airport?

Best airlines flying from Illinois to Istanbul Airport

Compare and see reviews for airlines that fly from Illinois to Istanbul Airport with momondo
Airline
Rating
Free Cancellation
Price
Royal JordanianPriceFrom $127Free CancellationRating
6.7
454 reviews
Search Royal Jordanian flights
Air SerbiaPriceFrom $382Free CancellationRating
6.1
214 reviews
Search Air Serbia flights
IcelandairPriceFrom $421Free CancellationRating
7.1
606 reviews
Search Icelandair flights
American AirlinesPriceFrom $524Free CancellationRating
7.2
11,255 reviews
Search American Airlines flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,174 reviews
Search Delta flights
Turkish AirlinesPriceFrom $602Free CancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
KLMPriceFrom $719Free CancellationRating
7.7
1,450 reviews
Search KLM flights
LOTPriceFrom $757Free CancellationRating
7.5
1,179 reviews
Search LOT flights
Etihad AirwaysPriceFrom $757Free CancellationRating
7.3
1,389 reviews
Search Etihad Airways flights
LufthansaPriceFrom $762Free CancellationRating
6.8
7,775 reviews
Search Lufthansa flights

Traveling to a place near Istanbul?

Book flights to Istanbul if you plan to visit one of these locations
Yalova

Why use momondo?

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

Finding the right flight to Istanbul from Illinois is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Istanbul quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Illinois to Istanbul flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Istanbul from Illinois.

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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