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Cheap flights from Illinois to Istanbul from $486

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 3/4. 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.
Multiple Airlines Logo
4:05 pm - 6:05 pm
STL
-
IST
17h 00m2 stops
Multiple Airlines Logo
6:30 am - 3:29 pm
IST
-
STL
41h 59m2 stops
$528Multiple Airlines
Wed, Feb 25 - Tue, Mar 3
British Airways Logo
2:19 pm - 5:25 pm
STL
-
IST
19h 06m2 stops
British Airways Logo
8:15 am - 11:04 pm
IST
-
STL
22h 49m2 stops
$530British Airways
Wed, Mar 18 - Wed, Apr 15
Lufthansa Logo
4:50 pm - 10:45 pm
STL
-
IST
21h 55m1 stop
Lufthansa Logo
5:40 am - 1:25 pm
IST
-
STL
15h 45m1 stop
$531Lufthansa
Wed, Mar 18 - Wed, Apr 15
United Airlines Logo
4:50 pm - 10:45 pm
STL
-
IST
21h 55m1 stop
United Airlines Logo
5:40 am - 1:25 pm
IST
-
STL
15h 45m1 stop
$533United Airlines
Sun, Mar 22 - Wed, Apr 1
Lufthansa Logo
4:50 pm - 10:45 pm
STL
-
IST
21h 55m1 stop
Lufthansa Logo
5:40 am - 9:08 pm
IST
-
STL
23h 28m2 stops
$535Lufthansa
Wed, Mar 18 - Wed, Apr 15
United Airlines Logo
7:00 pm - 10:45 pm
STL
-
IST
19h 45m2 stops
United Airlines Logo
5:40 am - 1:25 pm
IST
-
STL
15h 45m1 stop
$537United Airlines
Mon, Mar 16 - Wed, Apr 1
KLM Logo
6:59 pm - 9:20 pm
STL
-
SAW
18h 21m2 stops
KLM Logo
8:50 am - 8:38 pm
SAW
-
STL
19h 48m2 stops
$608KLM
Wed, Mar 18 - Wed, Apr 15
KLM Logo
11:23 am - 5:25 pm
STL
-
SAW
21h 02m2 stops
KLM Logo
9:00 am - 11:37 pm
SAW
-
STL
23h 37m2 stops
$610KLM
Wed, Feb 4 - Wed, Feb 11
Scandinavian Airlines Logo
10:40 am - 3:40 am
ORD
-
IST
33h 00m2 stops
Scandinavian Airlines Logo
4:30 am - 9:29 pm
IST
-
ORD
24h 59m2 stops
$663Scandinavian Airlines
Tue, Apr 7 - Tue, Apr 14
Scandinavian Airlines Logo
7:15 pm - 3:40 am
ORD
-
IST
24h 25m1 stop
Scandinavian Airlines Logo
4:30 am - 9:21 am
IST
-
ORD
36h 51m2 stops
$668Scandinavian Airlines
Wed, Apr 22 - Tue, May 5

British Airways flights from Illinois to Istanbul

Our best British Airways deals on Illinois to Istanbul flight tickets
British Airways
Mar 18
STL2:19 pmLambert-St Louis
19h 06m
2 stops
IST5:25 pmIstanbul
Apr 15
IST8:15 amIstanbul
22h 49m
2 stops
STL11:04 pmLambert-St Louis
$530
British Airways
Jan 18
STL6:44 pmLambert-St Louis
21h 06m
2 stops
IST12:50 amIstanbul
Feb 16
IST6:40 pmIstanbul
55h 33m
2 stops
STL5:13 pmLambert-St Louis
$536
British Airways
Feb 6
STL1:35 pmLambert-St Louis
18h 50m
2 stops
IST5:25 pmIstanbul
Feb 17
IST7:35 amIstanbul
22h 37m
2 stops
STL9:12 pmLambert-St Louis
$545

Lufthansa flights from Illinois to Istanbul

Our best Lufthansa deals on Illinois to Istanbul flight tickets
Lufthansa
Mar 18
STL4:50 pmLambert-St Louis
21h 55m
1 stop
IST10:45 pmIstanbul
Apr 15
IST5:40 amIstanbul
15h 45m
1 stop
STL1:25 pmLambert-St Louis
$531
Lufthansa
Mar 18
STL4:50 pmLambert-St Louis
21h 55m
1 stop
IST10:45 pmIstanbul
Apr 15
IST5:40 amIstanbul
23h 28m
2 stops
STL9:08 pmLambert-St Louis
$535
Lufthansa
Mar 1
STL3:50 pmLambert-St Louis
21h 55m
1 stop
IST10:45 pmIstanbul
Mar 8
IST6:30 amIstanbul
16h 25m
1 stop
STL1:55 pmLambert-St Louis
$542

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 January 8, 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 - IST

STLIST

Lambert-St Louis

Wed 2/25

4:05 pm-6:05 pm

2 stops17h 00m

Istanbul

Tue 3/3

6:30 am-3:29 pm

2 stops41h 59m

$528

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

2:19 pm-5:25 pm

2 stops19h 06m

Istanbul

Wed 4/15

8:15 am-11:04 pm

2 stops22h 49m

$530

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

4:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 4/15

5:40 am-1:25 pm

1 stop15h 45m

$531

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 3/22

4:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 4/1

5:40 am-1:25 pm

1 stop15h 45m

$533

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

4:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 4/15

5:40 am-9:08 pm

2 stops23h 28m

$535

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 3/16

7:00 pm-10:45 pm

2 stops19h 45m

Istanbul

Wed 4/1

5:40 am-1:25 pm

1 stop15h 45m

$537

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 3/18

6:59 pm-9:20 pm

2 stops18h 21m

Istanbul Sabiha Gokcen

Wed 4/15

8:50 am-8:38 pm

2 stops19h 48m

$608

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 2/4

11:23 am-5:25 pm

2 stops21h 02m

Istanbul Sabiha Gokcen

Wed 2/11

9:00 am-11:37 pm

2 stops23h 37m

$610

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 4/7

10:40 am-3:40 am

2 stops33h 00m

Istanbul

Tue 4/14

4:30 am-9:29 pm

2 stops24h 59m

$663

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 4/22

7:15 pm-3:40 am

1 stop24h 25m

Istanbul

Tue 5/5

4:30 am-9:21 am

2 stops36h 51m

$668

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, November 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 $886. If you aren’t able to travel to Istanbul during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $924.

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 $901. 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 $998.

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 $924. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $953 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 $1,022 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 $847 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
IcelandairPriceFrom $421Free CancellationRating
7.1
593 reviews
Search Icelandair flights
Air SerbiaPriceFrom $439Free CancellationRating
6.2
212 reviews
Search Air Serbia flights
DeltaPriceFrom $586Free CancellationRating
7.9
8,026 reviews
Search Delta flights
Turkish AirlinesPriceFrom $667Free CancellationRating
7.3
4,150 reviews
Search Turkish Airlines flights
KLMPriceFrom $719Free CancellationRating
7.7
1,434 reviews
Search KLM flights
LOTPriceFrom $723Free CancellationRating
7.5
1,168 reviews
Search LOT flights
Royal JordanianPriceFrom $733Free CancellationRating
6.8
448 reviews
Search Royal Jordanian flights
Etihad AirwaysPriceFrom $757Free CancellationRating
7.3
1,360 reviews
Search Etihad Airways flights
United AirlinesPriceFrom $771Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
LufthansaPriceFrom $776Free CancellationRating
6.8
7,694 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