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Istanbul

$379+ Cheap flights from Illinois to Istanbul (IST)

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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheap flight deals from Illinois to Istanbul

Keep the following information in mind while searching for Illinois to Istanbul flight deals. Data was last updated July 31, 2025.

Round-trip from

$804
(Air Canada)

One-way from

$379
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$1,098

Good round-trip deal

$723 or less

Good one-way deal

$431 or less
From Illinois to Istanbul
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One-way flight from Illinois to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($183 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Illinois to Istanbul.
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Price to beat on a one-way flight from Illinois to Istanbul.
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Find 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 July 31, 2025.

This Ovago deal was found by Cheapflights users on 7/31. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/235:57 pmSTL - IST
2 stops45h 28mBritish Airways
Tue 1/207:35 amIST - STL
2 stops23h 14mBritish Airways
Deal found 7/31$655
This KLM deal was found by Cheapflights users on 7/31. 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.
Tue 12/233:29 pmSTL - IST
2 stops16h 26mKLM
Mon 1/194:50 amIST - STL
2 stops24h 49mKLM
Deal found 7/31$668
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/124:10 pmSTL - IST
2 stops27h 15mDelta
Fri 9/194:20 amIST - STL
2 stops20h 28mDelta
Deal found 7/29$786
This Air Canada deal was found by Cheapflights users on 7/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:05 pmSTL - IST
2 stops22h 20mMultiple Airlines
Tue 1/208:45 amIST - STL
3 stops39h 44mMultiple Airlines
Deal found 7/31$799
This Etihad Airways deal was found by Cheapflights users on 7/31. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/91:55 pmORD - IST
1 stop32h 20mEtihad Airways
Fri 9/197:30 amIST - ORD
1 stop33h 15mEtihad Airways
Deal found 7/31$813
This LOT deal was found by Cheapflights users on 7/29. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/165:10 pmORD - IST
1 stop33h 20mLOT
Sun 11/910:35 pmIST - ORD
2 stops54h 25mLOT
Deal found 7/29$815
This oojo deal was found by Cheapflights users on 7/29. 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 8/2011:45 pmORD - IST
Nonstop10h 20mTurkish Airlines
Tue 9/166:30 amIST - ORD
Nonstop11h 10mTurkish Airlines
Deal found 7/29$816
This Lufthansa deal was found by Cheapflights users on 7/30. 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.
Sat 11/227:50 pmORD - IST
2 stops37h 15mLufthansa
Tue 12/27:00 pmIST - ORD
1 stop25h 10mLufthansa
Deal found 7/30$819
This KLM deal was found by Cheapflights users on 7/30. 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.
Sat 11/85:04 pmMLI - IST
2 stops25h 46mKLM
Wed 11/125:55 pmIST - MLI
2 stops37h 35mKLM
Deal found 7/30$820
This Mytrip deal was found by Cheapflights users on 7/31. 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 9/37:25 pmORD - IST
3 stops35h 30mMultiple Airlines
Sun 9/73:40 pmIST - ORD
3 stops34h 35mMultiple Airlines
Deal found 7/31$820
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/125:10 pmORD - IST
1 stop26h 15mDelta
Tue 10/214:20 amIST - ORD
2 stops24h 59mDelta
Deal found 7/28$824
This Booking.com deal was found by Cheapflights users on 7/31. 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 10/138:40 amORD - IST
2 stops31h 15mAir Canada
Fri 10/247:45 amIST - ORD
2 stops20h 26mAir Canada
Deal found 7/31$831

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 July 31, 2025.
Use the filters below to find and compare flights from Illinois to Istanbul Airport that are best for you.

Fly from

Illinois

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 9/14

1:30 pm-5:10 pm

2 stops19h 40m

Istanbul

Sun 9/21

7:15 am-7:57 pm

2 stops20h 42m

$804

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 9/9

1:55 pm-6:15 am

1 stop32h 20m

Istanbul

Fri 9/19

7:30 am-8:45 am

1 stop33h 15m

$813

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 10/16

5:10 pm-10:30 am

1 stop33h 20m

Istanbul

Sun 11/9

10:35 pm-8:00 pm

2 stops54h 25m

$815

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 8/20

11:45 pm-6:05 pm

Nonstop10h 20m

Istanbul

Tue 9/16

6:30 am-9:40 am

Nonstop11h 10m

$816

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 8/26

11:25 am-5:45 am

Nonstop10h 20m

Istanbul

Mon 9/29

4:45 am-10:43 pm

2 stops25h 58m

$817

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 11/22

7:50 pm-6:05 pm

2 stops37h 15m

Istanbul

Tue 12/2

7:00 pm-11:10 am

1 stop25h 10m

$819

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

Sat 11/8

5:04 pm-3:50 am

2 stops25h 46m

Istanbul

Wed 11/12

5:55 pm-10:30 pm

2 stops37h 35m

$820

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 10/12

5:10 pm-3:25 am

1 stop26h 15m

Istanbul

Tue 10/21

4:20 am-9:19 pm

2 stops24h 59m

$824

ChicagoIstanbul

MDW - IST

MDWIST

Chicago Midway

Mon 9/22

6:15 pm-3:25 am

2 stops25h 10m

Istanbul

Mon 9/29

5:05 pm-6:35 pm

2 stops33h 30m

$833

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 10/17

3:35 pm-5:10 pm

2 stops17h 35m

Istanbul

Fri 11/14

8:50 am-7:30 pm

2 stops19h 40m

$834

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 31 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 Airport

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

Currently, November is the cheapest month in which you can book a flight from Illinois to Istanbul Airport (average of $923). Flying from Illinois to Istanbul Airport in June is currently the most expensive (average of $1,359). 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 July 31, 2025.

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

Weekly flight availability from Illinois to Istanbul Airport

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 July 31, 2025.

The most flights from USIL to IST are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

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

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and LOT from Illinois to Istanbul Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
LOT
7.6
Good
1,105 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Etihad Airways
7.4
Good
1,230 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $386. Icelandair flights start at $447 while deals on Royal Jordanian start at $467 one-way.

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

    While some choose either Chicago Midway - Istanbul or Lambert-St Louis - Istanbul, Chicago O'Hare Intl - Istanbul is the most popular route from Illinois to Istanbul Airport.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Illinois to Istanbul Airport on time: Pakistan International Airlines (73%), MIAT Mongolian (73%), Turkish Airlines (57%).

  • What are the cheapest flights from Illinois to Istanbul Airport?

    Looking at all options, your cheapest flight can be booked for $341. While the most popular route (Chicago O'Hare Intl - Istanbul) can be booked for $631 on average our data indicates $1,856 when flying from Illinois to Istanbul Airport.

  • 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 Airport?

    Currently, November is the cheapest month in which you can book a flight from Illinois to Istanbul Airport (average of $923). Flying from Illinois to Istanbul Airport in June is currently the most expensive (average of $1,359). 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

Traveling to a place near Istanbul Airport?

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

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest$382Average$1,095FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$759FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$624Average$1,079FlexibilityNo cancel feeOn-time77%
LOTCheapest$683Average$982FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$700Average$934FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$704Average$900FlexibilityNo cancel feeOn-time70%
DeltaCheapest$711Average$1,062FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$721Average$872FlexibilityNo cancel feeOn-time75%
Royal JordanianCheapest$747Average$841FlexibilityNo cancel feeOn-time61%
LufthansaCheapest$776Average$1,157FlexibilityNo cancel feeOn-time76%

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