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Istanbul

$513+ Cheap flights from Illinois to Istanbul

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
Feb 19 — Feb 261
Thu 2/19
Thu 2/26
1 adult, Economy
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Cheap flight deals from Illinois to Istanbul

Cheapest flights from Illinois to Istanbul
Explore the most affordable flight options available from Illinois to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2026.

This Mytrip deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:05 pm
STL
-
IST
2 stops17h 00m
Multiple Airlines
Wed 3/116:30 am
IST
-
STL
1 stop16h 25m
Multiple Airlines
Deal found 1/18$517
This Mytrip deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:50 pm
STL
-
IST
1 stop21h 55m
Lufthansa
Wed 3/116:30 am
IST
-
STL
1 stop16h 25m
Lufthansa
Deal found 1/18$523
This oojo deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:05 am
STL
-
IST
2 stops21h 20m
British Airways
Tue 2/172:55 pm
IST
-
STL
2 stops39h 17m
British Airways
Deal found 1/20$529
This oojo deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:59 am
STL
-
IST
2 stops21h 26m
British Airways
Wed 4/88:15 am
IST
-
STL
2 stops21h 59m
British Airways
Deal found 1/18$530
This FlightHub deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:50 pm
STL
-
IST
1 stop21h 55m
Lufthansa
Tue 4/143:45 am
IST
-
STL
2 stops25h 23m
Lufthansa
Deal found 1/18$534
This Lufthansa deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:50 pm
STL
-
IST
1 stop21h 55m
Lufthansa
Tue 4/73:45 am
IST
-
STL
2 stops17h 40m
Lufthansa
Deal found 1/18$544
This American Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1811:59 am
STL
-
IST
2 stops21h 26m
American Airlines
Wed 4/158:15 am
IST
-
STL
2 stops23h 33m
American Airlines
Deal found 1/18$545
This British Airways deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:00 am
STL
-
IST
2 stops26h 25m
British Airways
Mon 11/93:15 pm
IST
-
STL
2 stops38h 40m
British Airways
Deal found 1/18$547
This Booking.com deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:35 pm
STL
-
IST
2 stops23h 30m
Lufthansa
Sat 5/21:55 pm
IST
-
STL
1 stop31h 30m
Lufthansa
Deal found 1/19$554
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/184:05 pm
STL
-
IST
2 stops46h 40m
United Airlines
Wed 4/155:40 am
IST
-
STL
1 stop15h 45m
United Airlines
Deal found 1/19$555
This United Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/610:47 am
MLI
-
IST
2 stops22h 18m
United Airlines
Tue 2/106:30 am
IST
-
MLI
2 stops24h 06m
United Airlines
Deal found 1/19$596
This KLM deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/181:39 pm
STL
-
SAW
2 stops19h 46m
KLM
Wed 4/158:50 am
SAW
-
STL
2 stops19h 48m
KLM
Deal found 1/20$608

Find flight deals from Illinois to Istanbul

Keep the following information in mind while searching for Illinois to Istanbul flight deals. Data was last updated January 20, 2026.

Round-trip from

$517
(Mytrip)

One-way from

$513
(KAYAK)

Popular in

June

Cheapest in

November

Average price

$946
From Illinois to Istanbul
Search Deals
One-way flight from Illinois to Istanbul
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($172 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
Use the filters below to find and compare flights from Illinois to Istanbul that are best for you.

Fly from

Illinois

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

4:05 pm-10:45 pm

2 stops46h 40m

Istanbul

Wed 4/15

5:40 am-1:25 pm

1 stop15h 45m

$555

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Thu 2/26

11:25 am-6:05 pm

2 stops21h 40m

Istanbul

Mon 3/2

6:30 am-9:05 pm

2 stops23h 35m

$576

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Thu 2/5

8:31 am-5:30 pm

2 stops23h 59m

Istanbul

Mon 2/16

6:40 pm-9:12 pm

2 stops35h 32m

$579

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

Fri 2/6

10:47 am-6:05 pm

2 stops22h 18m

Istanbul

Tue 2/10

6:30 am-9:36 pm

2 stops24h 06m

$596

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 3/18

1:39 pm-5:25 pm

2 stops19h 46m

Istanbul Sabiha Gokcen

Wed 4/15

8:50 am-11:33 pm

2 stops22h 43m

$608

St. LouisIstanbul

STL - SAW

STLSAW

Lambert-St Louis

Wed 3/18

1:39 pm-5:25 pm

2 stops19h 46m

Istanbul Sabiha Gokcen

Wed 4/8

8:50 am-11:25 pm

2 stops22h 35m

$608

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 3/18

4:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Wed 4/8

5:40 am-1:25 pm

1 stop15h 45m

$637

ChicagoIstanbul

ORD - SAW

ORDSAW

Chicago O'Hare Intl

Wed 2/18

4:25 pm-5:25 pm

1 stop16h 00m

Istanbul Sabiha Gokcen

Mon 3/2

12:55 pm-4:41 pm

2 stops36h 46m

$685

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Tue 2/24

1:26 pm-4:55 pm

2 stops18h 29m

Istanbul

Mon 3/2

4:50 am-5:45 pm

2 stops21h 55m

$686

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Sun 2/22

1:28 pm-4:55 pm

2 stops18h 27m

Istanbul

Mon 3/2

4:50 am-5:45 pm

2 stops21h 55m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/17

Showing 1-10 of 58 results
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Best time to book a flight from Illinois to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Istanbul

What is the cheapest month to book a flight from Illinois to Istanbul?

Currently, February is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $418). Flying from Illinois to Istanbul in June is currently the most expensive (average of $842). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to IST?

Find hourly flight availability from Illinois to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Istanbul as you normally would.

Weekly flight availability from Illinois to Istanbul

Explore weekly flight availability from Illinois to Istanbul. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 20, 2026.

The most flights from USIL to TR5 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Illinois to Istanbul?

Related info for your journey

Find useful and relevant information for your journey from Illinois to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Istanbul?

    For as low as $608, United Airlines can have you in Istanbul from Illinois in 19h 46m. The distance between Illinois and Istanbul is about 5746 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Istanbul one-way?

    The cheapest airlines for a one-way flight from Illinois to Istanbul are Turkish Airlines ($320), Air Serbia ($443), and Royal Jordanian ($447).

  • What are the most popular routes from Illinois to Istanbul?

    Most travelers choose Chicago O'Hare Intl - Istanbul, Chicago O'Hare Intl - Istanbul Sabiha Gokcen or Chicago Midway - Istanbul when deciding on the best route from Illinois to Istanbul.

  • What are the most reliable airlines from Illinois to Istanbul?

    Consider Uzbekistan Airways (58%), Turkish Airlines (58%) or Pakistan International Airlines (58%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Istanbul.

  • What are the cheapest flights from Illinois to Istanbul?

    Looking at all options, your cheapest flight can be booked for $374. While the most popular route (Chicago O'Hare Intl - Istanbul) can be booked for $648 on average, our data indicates $1,712 when flying from Illinois to Istanbul.

  • Can I find deals for flights from Illinois to Istanbul that include hotel bookings?

    Yes. In addition to deals on Illinois to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Istanbul.

  • Can I find deals for business class flights from Illinois to Istanbul?

    Yes. Cheapflights offers flight deals from Illinois to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Istanbul?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $418). Flying from Illinois to Istanbul in June is currently the most expensive (average of $842). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Istanbul

Discover the top 10 airlines that operate flights from Illinois to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest$382Average$842FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$421Average$655FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$524Average$1,002FlexibilityNo cancel feeOn-time71%
Turkish AirlinesCheapest$583Average$980FlexibilityNo cancel feeOn-time77%
DeltaCheapest$586Average$1,148FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$719Average$775FlexibilityNo cancel feeOn-time75%
Royal JordanianCheapest$733Average$797FlexibilityNo cancel feeOn-time61%
LOTCheapest$738Average$1,034FlexibilityNo cancel feeOn-time81%
Etihad AirwaysCheapest$757Average$865FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$771Average$1,171FlexibilityNo cancel feeOn-time76%

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