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$396+ 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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 3, 2025.

Round-trip from

$637
(British Airways)

One-way from

$396
(Trip.com)

Popular in

June

Cheapest in

January

Average price

$1,146
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. 15% potential increase in price ($190 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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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 3, 2025.

This British Airways deal was found by Cheapflights users on 7/2. 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.
Tue 8/121:15 pmSTL - SAW
2 stops18h 05mBritish Airways
Wed 8/204:15 pmSAW - STL
2 stops31h 34mBritish Airways
Deal found 7/2$637
This British Airways deal was found by Cheapflights users on 7/2. 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.
Tue 8/121:15 pmSTL - IST
2 stops19h 15mBritish Airways
Wed 8/205:35 pmIST - STL
2 stops30h 14mBritish Airways
Deal found 7/2$643
This United deal was found by Cheapflights users on 7/2. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/93:50 pmSTL - IST
1 stop21h 55mMultiple Airlines
Sun 11/166:30 amIST - STL
1 stop16h 25mMultiple Airlines
Deal found 7/2$675
This KLM deal was found by Cheapflights users on 7/2. 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 12/2311:46 amSTL - IST
2 stops20h 09mKLM
Tue 1/205:10 amIST - STL
2 stops24h 29mKLM
Deal found 7/2$719
This Delta deal was found by Cheapflights users on 7/1. 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.
Tue 8/125:11 pmSTL - IST
2 stops26h 14mDelta
Wed 8/205:05 pmIST - STL
2 stops32h 49mDelta
Deal found 7/1$739
This Expedia deal was found by Cheapflights users on 7/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:30 pmSTL - IST
2 stops21h 25mAir Canada
Tue 10/218:30 pmIST - STL
2 stops31h 08mAir Canada
Deal found 7/1$764
This KLM deal was found by Cheapflights users on 7/2. 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 11/155:00 pmMLI - IST
2 stops26h 10mKLM
Wed 11/195:55 pmIST - MLI
2 stops37h 35mKLM
Deal found 7/2$821
This Ovago deal was found by Cheapflights users on 7/1. 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.
Wed 10/153:30 pmSTL - IST
1 stop21h 50mLufthansa
Tue 10/215:55 pmIST - STL
1 stop27h 35mLufthansa
Deal found 7/1$847
This Delta deal was found by Cheapflights users on 7/1. 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 8/154:59 pmMLI - IST
2 stops26h 26mDelta
Fri 8/225:05 pmIST - MLI
2 stops31h 14mDelta
Deal found 7/1$879
This KLM deal was found by Cheapflights users on 7/3. 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 9/305:10 pmORD - IST
2 stops15h 10mKLM
Sun 10/125:05 pmIST - ORD
1 stop29h 35mKLM
Deal found 7/3$898
This Lufthansa deal was found by Cheapflights users on 7/2. 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.
Mon 9/224:00 pmORD - IST
1 stop21h 20mLufthansa
Tue 9/305:55 pmIST - ORD
1 stop29h 00mLufthansa
Deal found 7/2$899
This oojo deal was found by Cheapflights users on 7/3. 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.
Mon 7/219:40 pmORD - IST
1 stop18h 10mLOT
Sun 9/2111:25 amIST - ORD
1 stop35h 45mLOT
Deal found 7/3$900

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 3, 2025.
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 - SAW

STLSAW

Lambert-St Louis

Tue 8/12

1:15 pm-3:20 pm

2 stops18h 05m

Istanbul Sabiha Gokcen

Wed 8/20

4:15 pm-3:49 pm

2 stops31h 34m

$637

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 8/12

1:15 pm-4:30 pm

2 stops19h 15m

Istanbul

Wed 8/20

5:35 pm-3:49 pm

2 stops30h 14m

$643

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sun 11/9

3:50 pm-10:45 pm

1 stop21h 55m

Istanbul

Sun 11/16

6:30 am-1:55 pm

1 stop16h 25m

$675

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 12/23

11:46 am-4:55 pm

2 stops20h 09m

Istanbul

Tue 1/20

5:10 am-8:39 pm

2 stops24h 29m

$719

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 8/12

5:11 pm-3:25 am

2 stops26h 14m

Istanbul

Wed 8/20

5:05 pm-5:54 pm

2 stops32h 49m

$739

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 10/15

1:30 pm-6:55 pm

2 stops21h 25m

Istanbul

Tue 10/21

8:30 pm-7:38 pm

2 stops31h 08m

$764

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

Sat 11/15

5:00 pm-4:10 am

2 stops26h 10m

Istanbul

Wed 11/19

5:55 pm-10:30 pm

2 stops37h 35m

$821

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 10/15

3:30 pm-9:20 pm

1 stop21h 50m

Istanbul

Tue 10/21

5:55 pm-1:30 pm

1 stop27h 35m

$847

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

Fri 8/15

4:59 pm-3:25 am

2 stops26h 26m

Istanbul

Fri 8/22

5:05 pm-4:19 pm

2 stops31h 14m

$879

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 9/30

5:10 pm-4:20 pm

2 stops15h 10m

Istanbul

Sun 10/12

5:05 pm-2:40 pm

1 stop29h 35m

$898

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 43 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, November is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $923). Flying from Illinois to Istanbul in June is currently the most expensive (average of $1,362). 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 3, 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 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 July 3, 2025.

The most flights from USIL to TR5 are scheduled on a Monday (11 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

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 3, 2025.
Read through reviews of airlines operating flights from Illinois to Istanbul, such as Emirates, Delta, and KLM. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,287 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very good
7,982 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,367 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
LOT
7.6
Good
1,092 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,594 reviews
Emirates
8.1
Very good
3,287 reviews

Boarding

8.1

Entertainment

8.2

Comfort

8.0

Food

7.8

Overall

8.1

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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 one-way?

    The cheapest airlines for a one-way flight from Illinois to Istanbul are Turkish Airlines ($405), Icelandair ($408), and Qatar Airways ($454).

  • 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 (63%), Turkish Airlines (63%) or Pakistan International Airlines (63%) 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 $376. While the most popular route (Chicago O'Hare Intl - Istanbul) can be booked for $723 on average our data indicates $2,125 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, November is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $923). Flying from Illinois to Istanbul in June is currently the most expensive (average of $1,362). 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.

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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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest$382Average$1,095FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$776FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$621Average$1,090FlexibilityNo cancel feeOn-time77%
LOTCheapest$683Average$977FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$700Average$938FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$704Average$912FlexibilityNo cancel feeOn-time70%
DeltaCheapest$711Average$1,050FlexibilityNo cancel feeOn-timeN/A
Etihad AirwaysCheapest$721Average$872FlexibilityNo cancel feeOn-time75%
Royal JordanianCheapest$722Average$841FlexibilityNo cancel feeOn-time61%
LufthansaCheapest$777Average$1,165FlexibilityNo cancel feeOn-time76%

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