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Cheap flights from Illinois to Istanbul from $316

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 12/10. 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
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 - 8:10 pmSTL-IST
19h 05m2 stops
Multiple Airlines Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$536Multiple Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Multiple Airlines Logo
4:05 pm - 5:25 amSTL-IST
28h 20m2 stops
Multiple Airlines Logo
6:30 am - 1:55 pmIST-STL
16h 25m1 stop
$545Multiple Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 24
Air Canada Logo
4:05 pm - 8:10 pmSTL-IST
19h 05m2 stops
Air Canada Logo
7:45 pm - 3:29 pmIST-STL
52h 44m2 stops
$553Air Canada
Find Deal
Tue, Dec 30 - Tue, Jan 13
Air Canada Logo
4:05 pm - 8:10 pmSTL-IST
19h 05m2 stops
Air Canada Logo
7:45 pm - 3:29 pmIST-STL
52h 44m2 stops
$554Air Canada
Find Deal
Tue, Nov 4 - Tue, Nov 11
Lufthansa Logo
6:43 pm - 10:45 pmSTL-IST
19h 02m2 stops
Lufthansa Logo
6:30 am - 11:44 pmIST-STL
26h 14m2 stops
$570Lufthansa
Find Deal
Mon, Nov 3 - Mon, Nov 10
Lufthansa Logo
3:50 pm - 10:45 pmSTL-IST
21h 55m1 stop
Lufthansa Logo
7:00 pm - 1:55 pmIST-STL
27h 55m1 stop
$575Lufthansa
Find Deal
Wed, Nov 12 - Tue, Nov 25
British Airways Logo
11:50 am - 5:45 pmSTL-IST
20h 55m2 stops
British Airways Logo
7:35 am - 11:52 pmIST-STL
25h 17m2 stops
$577British Airways
Find Deal
Tue, Dec 9 - Tue, Dec 23
British Airways Logo
6:00 am - 5:30 pmSTL-IST
26h 30m2 stops
British Airways Logo
2:45 pm - 4:47 pmIST-STL
35h 02m2 stops
$579British Airways
Find Deal
Mon, Dec 1 - Wed, Dec 17
United Airlines Logo
1:35 pm - 10:45 pmSTL-IST
24h 10m2 stops
United Airlines Logo
6:30 am - 1:21 pmIST-STL
39h 51m2 stops
$581United Airlines
Find Deal
Wed, Dec 10 - Wed, Dec 24
United Airlines Logo
4:05 pm - 9:20 pmSTL-IST
45h 15m2 stops
United Airlines Logo
2:00 pm - 1:30 pmIST-STL
31h 30m1 stop
$690United Airlines
Find Deal
Sat, Apr 4 - Sat, Apr 11

Air Canada flights from Illinois to Istanbul

Our best Air Canada deals on Illinois to Istanbul flight tickets
Air Canada
Dec 30
STL4:05 pmLambert-St Louis
19h 05m
2 stops
IST8:10 pmIstanbul
Jan 13
IST7:45 pmIstanbul
52h 44m
2 stops
STL3:29 pmLambert-St Louis
$553
Find similar
Air Canada
Nov 4
STL4:05 pmLambert-St Louis
19h 05m
2 stops
IST8:10 pmIstanbul
Nov 11
IST7:45 pmIstanbul
52h 44m
2 stops
STL3:29 pmLambert-St Louis
$554
Find similar
Air Canada
Jan 18
STL4:05 pmLambert-St Louis
23h 50m
2 stops
IST12:55 amIstanbul
Feb 16
IST7:45 pmIstanbul
52h 44m
2 stops
STL3:29 pmLambert-St Louis
$564
Find similar

Lufthansa flights from Illinois to Istanbul

Our best Lufthansa deals on Illinois to Istanbul flight tickets
Lufthansa
Nov 3
STL6:43 pmLambert-St Louis
19h 02m
2 stops
IST10:45 pmIstanbul
Nov 10
IST6:30 amIstanbul
26h 14m
2 stops
STL11:44 pmLambert-St Louis
$570
Find similar
Lufthansa
Nov 12
STL3:50 pmLambert-St Louis
21h 55m
1 stop
IST10:45 pmIstanbul
Nov 25
IST7:00 pmIstanbul
27h 55m
1 stop
STL1:55 pmLambert-St Louis
$575
Find similar
Lufthansa
Dec 9
STL1:00 pmLambert-St Louis
24h 45m
2 stops
IST10:45 pmIstanbul
Dec 23
IST7:00 pmIstanbul
27h 55m
1 stop
STL1:55 pmLambert-St Louis
$585
Find similar

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 October 6, 2025.
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

Mon 12/8

4:05 pm-8:10 pm

2 stops19h 05m

Istanbul

Wed 12/24

6:30 am-1:55 pm

1 stop16h 25m

$536

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 12/10

4:05 pm-5:25 am

2 stops28h 20m

Istanbul

Wed 12/24

6:30 am-1:55 pm

1 stop16h 25m

$545

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 12/30

4:05 pm-8:10 pm

2 stops19h 05m

Istanbul

Tue 1/13

7:45 pm-3:29 pm

2 stops52h 44m

$553

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 11/4

4:05 pm-8:10 pm

2 stops19h 05m

Istanbul

Tue 11/11

7:45 pm-3:29 pm

2 stops52h 44m

$554

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 11/3

6:43 pm-10:45 pm

2 stops19h 02m

Istanbul

Mon 11/10

6:30 am-11:44 pm

2 stops26h 14m

$570

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 11/12

3:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Tue 11/25

7:00 pm-1:55 pm

1 stop27h 55m

$575

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 12/9

11:50 am-5:45 pm

2 stops20h 55m

Istanbul

Tue 12/23

7:35 am-11:52 pm

2 stops25h 17m

$577

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Mon 12/1

6:00 am-5:30 pm

2 stops26h 30m

Istanbul

Wed 12/17

2:45 pm-4:47 pm

2 stops35h 02m

$579

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 12/10

1:35 pm-10:45 pm

2 stops24h 10m

Istanbul

Wed 12/24

6:30 am-1:21 pm

2 stops39h 51m

$581

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 4/4

4:05 pm-9:20 pm

2 stops45h 15m

Istanbul

Sat 4/11

2:00 pm-1:30 pm

1 stop31h 30m

$690

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 $916. If you aren’t able to travel to Istanbul during the month of November, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $926.

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 $900. 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 $1,003.

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 at noon. Flights from Illinois to Istanbul during this time can be as low as $682. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,032 on average. Flights to Istanbul from Illinois in the afternoon 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 $1,037 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 $890 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

1 airport
The fastest flight from Illinois to Istanbul takes 10h 20m
Direct flights go from Illinois to Istanbul every day.
There is 1 airport near Istanbul: 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
Air SerbiaPriceFrom $382Free CancellationRating
6.2
203 reviews
Search Air Serbia flights
IcelandairPriceFrom $517Free CancellationRating
7.0
550 reviews
Search Icelandair flights
Turkish AirlinesPriceFrom $636Free CancellationRating
7.3
3,992 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $654Free CancellationRating
6.7
7,430 reviews
Search British Airways flights
LOTPriceFrom $683Free CancellationRating
7.6
1,123 reviews
Search LOT flights
American AirlinesPriceFrom $700Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
Etihad AirwaysPriceFrom $721Free CancellationRating
7.4
1,269 reviews
Search Etihad Airways flights
Royal JordanianPriceFrom $747Free CancellationRating
6.8
429 reviews
Search Royal Jordanian flights
KLMPriceFrom $769Free CancellationRating
7.8
1,394 reviews
Search KLM flights
LufthansaPriceFrom $777Free CancellationRating
6.8
7,455 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