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$435+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$603
(Air France)

One-way from

$436
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,382

Good round-trip deal

$855 or less

Good one-way deal

$578 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. 15% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Air France deal was found by Cheapflights users on 6/10. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/61:29 pmSTL - IST
2 stops18h 51mMultiple Airlines
Wed 9/174:20 amIST - STL
2 stops19h 40mMultiple Airlines
Deal found 6/10$603
This Lufthansa deal was found by Cheapflights users on 6/11. 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.
Tue 11/48:50 amMLI - IST
2 stops23h 55mMultiple Airlines
Tue 11/186:30 amIST - MLI
2 stops23h 48mMultiple Airlines
Deal found 6/11$636
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/128:00 amSTL - IST
2 stops29h 20mUnited Airlines
Wed 8/202:00 pmIST - STL
2 stops32h 33mUnited Airlines
Deal found 6/10$641
This Gurufare deal was found by Cheapflights users on 6/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:30 pmSTL - IST
2 stops45h 00mBritish Airways
Tue 1/207:35 amIST - STL
2 stops23h 14mBritish Airways
Deal found 6/11$669
This Expedia deal was found by Cheapflights users on 6/9. 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.
Sat 10/255:28 pmSTL - IST
2 stops45h 17mLufthansa
Sat 11/17:00 pmIST - STL
1 stop27h 55mLufthansa
Deal found 6/9$706
This Air Canada deal was found by Cheapflights users on 6/11. 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 8/121:30 pmSTL - IST
2 stops21h 25mAir Canada
Wed 8/209:20 pmIST - STL
2 stops30h 25mAir Canada
Deal found 6/11$754
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 7/232:15 pmSTL - IST
2 stops29h 10mDelta
Tue 8/124:20 amIST - STL
2 stops19h 46mDelta
Deal found 6/10$809
This Gotogate deal was found by Cheapflights users on 6/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmORD - IST
2 stops20h 25mMultiple Airlines
Fri 12/266:30 amIST - ORD
1 stop15h 40mMultiple Airlines
Deal found 6/12$918
This Icelandair deal was found by Cheapflights users on 6/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/810:15 pmORD - IST
1 stop17h 40mIcelandair
Mon 10/1312:25 pmIST - ORD
1 stop13h 50mIcelandair
Deal found 6/10$919
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Mon 8/49:40 pmORD - IST
1 stop18h 10mLOT
Wed 8/135:30 pmIST - ORD
1 stop29h 40mLOT
Deal found 6/10$920
This Delta deal was found by Cheapflights users on 6/10. 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 7/135:10 pmORD - IST
1 stop26h 15mDelta
Tue 8/125:05 pmIST - ORD
1 stop29h 35mDelta
Deal found 6/10$922
This FlightHub deal was found by Cheapflights users on 6/10. 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.
Sun 8/2411:25 amORD - IST
Nonstop10h 20mTurkish Airlines
Mon 9/16:45 pmIST - ORD
Nonstop11h 15mTurkish Airlines
Deal found 6/10$924

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 June 12, 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

Wed 8/6

1:29 pm-4:20 pm

2 stops18h 51m

Istanbul

Wed 9/17

4:20 am-4:00 pm

2 stops19h 40m

$603

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

Tue 11/4

8:50 am-5:45 pm

2 stops23h 55m

Istanbul

Tue 11/18

6:30 am-9:18 pm

2 stops23h 48m

$636

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 8/12

8:00 am-9:20 pm

2 stops29h 20m

Istanbul

Wed 8/20

2:00 pm-2:33 pm

2 stops32h 33m

$641

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Sat 10/25

5:28 pm-10:45 pm

2 stops45h 17m

Istanbul

Sat 11/1

7:00 pm-2:55 pm

1 stop27h 55m

$706

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Tue 8/12

1:30 pm-6:55 pm

2 stops21h 25m

Istanbul

Wed 8/20

9:20 pm-7:45 pm

2 stops30h 25m

$754

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

Wed 7/23

2:15 pm-3:25 am

2 stops29h 10m

Istanbul

Tue 8/12

4:20 am-4:06 pm

2 stops19h 46m

$809

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 10/8

10:15 pm-11:55 pm

1 stop17h 40m

Istanbul

Mon 10/13

12:25 pm-6:15 pm

1 stop13h 50m

$919

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 8/4

9:40 pm-11:50 pm

1 stop18h 10m

Istanbul

Wed 8/13

5:30 pm-3:10 pm

1 stop29h 40m

$920

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 7/6

4:20 pm-4:20 pm

1 stop16h 00m

Istanbul

Sat 7/19

4:20 am-2:10 pm

2 stops17h 50m

$921

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 7/13

5:10 pm-3:25 am

1 stop26h 15m

Istanbul

Tue 8/12

5:05 pm-2:40 pm

1 stop29h 35m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 44 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 $1,374). 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 June 12, 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 June 12, 2025.

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

Rainfall in Istanbul by month

Plan your trip to Istanbul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Istanbul Airport ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Istanbul Airport when rainfall is around 0.4 in.

Temperature in Istanbul by month

Plan your trip to Istanbul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Istanbul Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 June 12, 2025.
Get a feel of what it's like to fly with Emirates, Delta and KLM from Illinois to Istanbul by reading reviews from past customers. 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
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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
7,950 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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
1,358 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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
1,077 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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.
Air France
7.5
Good
1,463 reviews
Emirates
8.1
Very good
3,264 reviews

Boarding

8.1

Food

7.8

Crew

8.3

Comfort

8.0

Overall

8.1

Entertainment

8.2

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 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 $441. Icelandair flights start at $458 while deals on Royal Jordanian start at $468 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: Uzbekistan Airways (52%), Turkish Airlines (52%), Pakistan International Airlines (52%).

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

    Looking at all options, your cheapest flight can be booked for $358. While the most popular route (Chicago O'Hare Intl - Istanbul) can be booked for $759 on average our data indicates $2,750 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 $1,374). 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest$364Average$1,095FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$480Average$776FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$623Average$1,097FlexibilityNo cancel feeOn-time77%
LOTCheapest$683Average$965FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$700Average$938FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$703Average$935FlexibilityNo cancel feeOn-time70%
Etihad AirwaysCheapest$721Average$865FlexibilityNo cancel feeOn-time75%
DeltaCheapest$729Average$1,046FlexibilityNo cancel feeOn-timeN/A
Royal JordanianCheapest$747Average$842FlexibilityNo cancel feeOn-time61%
LufthansaCheapest$769Average$1,153FlexibilityNo cancel feeOn-time76%

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