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$316+ Cheap flights from Chicago (CHI) 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — IST
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago to Istanbul are usually found in January or November, booked 87 days in advance, depart on a Wednesday or Sunday and return on a Tuesday

Cheap flight deals from Chicago to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$752
(FlightHub)

One-way from

$316
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$948

Good round-trip deal

$673 or less

Good one-way deal

$370 or less
From Chicago (CHI) to Istanbul
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One-way flight from Chicago (CHI) to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($179 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Chicago (CHI) to Istanbul.
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Price to beat on a one-way flight from Chicago (CHI) to Istanbul.
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Find flight deals from Chicago to Istanbul

Cheapest flights from Chicago to Istanbul
Explore the most affordable flight options available from Chicago to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This FlightHub deal was found by Cheapflights users on 9/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:55 pmORD - IST
2 stops31h 05mLOT
Mon 12/87:50 amIST - ORD
2 stops21h 05mLOT
Deal found 9/12$752
This Mytrip deal was found by Cheapflights users on 9/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/19:00 amORD - IST
3 stops34h 50mMultiple Airlines
Wed 10/84:45 amIST - ORD
3 stops38h 05mMultiple Airlines
Deal found 9/12$753
This KLM deal was found by Cheapflights users on 9/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/14:25 pmORD - IST
1 stop15h 30mKLM
Fri 1/94:50 amIST - ORD
1 stop19h 20mKLM
Deal found 9/12$754
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sun 10/1210:40 amORD - IST
2 stops20h 20mMultiple Airlines
Tue 10/211:40 amIST - ORD
3 stops26h 37mMultiple Airlines
Deal found 9/14$755
This KLM deal was found by Cheapflights users on 9/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/45:20 pmORD - IST
1 stop25h 30mKLM
Mon 11/174:50 amIST - ORD
2 stops20h 38mKLM
Deal found 9/12$756
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Fri 10/174:55 pmORD - IST
2 stops21h 30mMultiple Airlines
Mon 10/2011:15 pmIST - ORD
2 stops28h 25mMultiple Airlines
Deal found 9/14$757
This CrystalTravel deal was found by Cheapflights users on 9/12. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:55 pmORD - IST
1 stop32h 20mEtihad Airways
Wed 10/82:10 pmIST - ORD
1 stop26h 35mEtihad Airways
Deal found 9/12$758
This oojo deal was found by Cheapflights users on 9/14. 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.
Thu 10/99:40 pmORD - IST
2 stops28h 40mLOT
Thu 11/612:10 pmIST - ORD
2 stops16h 50mLOT
Deal found 9/14$760
This Mytrip deal was found by Cheapflights users on 9/13. 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.
Mon 10/610:27 amORD - IST
3 stops33h 23mMultiple Airlines
Thu 11/69:20 pmIST - ORD
2 stops26h 55mMultiple Airlines
Deal found 9/13$761
This Mytrip deal was found by Cheapflights users on 9/14. 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 10/1510:40 amORD - IST
2 stops20h 20mMultiple Airlines
Wed 10/297:35 amIST - ORD
2 stops21h 30mMultiple Airlines
Deal found 9/14$762
This LOT deal was found by Cheapflights users on 9/12. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/169:55 pmORD - IST
1 stop28h 25mLOT
Wed 12/32:55 pmIST - ORD
1 stop14h 05mLOT
Deal found 9/12$763
This Air France deal was found by Cheapflights users on 9/13. 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.
Mon 12/2912:43 pmMDW - IST
2 stops19h 12mMultiple Airlines
Sun 1/184:50 amIST - MDW
2 stops20h 35mMultiple Airlines
Deal found 9/13$768

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 September 15, 2025.
Use the filters below to find and compare flights from Chicago to Istanbul Airport that are best for you.

Fly from

Chicago

Fly to

Istanbul

Route

Depart

Return

Price

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 11/2

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Mon 11/17

4:50 am-4:28 pm

2 stops20h 38m

$752

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 11/30

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Sun 12/7

4:50 am-3:23 pm

2 stops19h 33m

$756

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 11/4

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Mon 11/17

4:50 am-4:28 pm

2 stops20h 38m

$756

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 11/4

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Wed 11/12

4:50 am-3:26 pm

2 stops19h 36m

$756

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 11/3

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Sun 11/23

4:50 am-3:26 pm

2 stops19h 36m

$756

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 11/30

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Sun 12/7

5:55 pm-2:20 pm

1 stop29h 25m

$767

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 11/4

1:25 pm-4:55 pm

2 stops18h 30m

Istanbul

Mon 11/10

4:50 am-3:26 pm

2 stops19h 36m

$768

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 12/10

4:25 pm-4:55 pm

1 stop15h 30m

Istanbul

Sun 1/18

5:55 pm-2:20 pm

1 stop29h 25m

$776

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 12/6

5:20 pm-3:50 am

1 stop25h 30m

Istanbul

Tue 1/6

4:50 am-3:10 pm

1 stop19h 20m

$776

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 11/25

1:25 pm-4:55 pm

2 stops18h 30m

Istanbul

Sun 11/30

5:55 pm-2:20 pm

1 stop29h 25m

$781

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 37 results
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Best time to book a flight from Chicago to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Chicago 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 Chicago to Istanbul Airport

How far ahead should I book a flight from Chicago to Istanbul Airport?

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Istanbul. Price data was last updated on August 29, 2025.

The price you pay for your flight from Chicago to Istanbul Airport may vary depending on when you book. For the best chance of a lower fare, look to book 87 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, October is the cheapest month in which you can book a flight from Chicago to Istanbul Airport (average of $916). Flying from Chicago 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 CHI to IST?

Find hourly flight availability from Chicago 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 September 15, 2025.

It’s optimal to fly from Chicago to Istanbul Airport at noon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Chicago to Istanbul Airport?

Use this chart to determine the cheapest time to fly round-trip from Chicago to Istanbul. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago to Istanbul Airport flight should consider departing on Wednesday at noon when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Chicago to Istanbul Airport

Explore weekly flight availability from Chicago 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 September 15, 2025.

The most flights from CHI to IST are scheduled on a Monday (13 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).

What’s the top layover airport for flights from Chicago to Istanbul Airport?

Share of 1-stop round-trip flights from Chicago to Istanbul Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Warsaw (WAW) – chosen by Cheapflights users on 59% of 1-stop itineraries from Chicago to Istanbul Airport on Cheapflights.

What’s the cheapest layover airport for flights from Chicago to Istanbul Airport?

Average round-trip fare for 1-stop flights from Chicago to Istanbul Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $570.

What’s the fastest layover option from Chicago to Istanbul Airport?

Shortest average travel time for 1-stop one-way flights from Chicago to Istanbul Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Frankfurt am Main (FRA) have the shortest average one-way travel time for 1-stop routes: 13h 58m.

Which airport typically offers the quickest layover for flights from Chicago to Istanbul Airport?

Average layover duration for 1-stop one-way flights from Chicago to Istanbul Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Frankfurt am Main (FRA) offer the fastest connection on this route, with an average layover time of 1h 49m.

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 September 15, 2025.
Peruse reviews from past customers who have flown with Delta, LOT, and Turkish Airlines from Chicago to Istanbul Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
7,956 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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
1,114 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
Turkish Airlines
7.3
Good
3,968 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
Lufthansa
6.8
Okay
7,409 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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!
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,956 reviews

Crew

8.5

Comfort

7.9

Entertainment

7.9

Overall

8.0

Food

7.3

Boarding

8.2

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 Chicago 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 Chicago to Istanbul Airport?

    A quick flight from Chicago to Istanbul Airport can take about 22h 23m. KLM provides one of the quickest options available for as low as $1,023. The distance from Chicago to Istanbul Airport is about 5459 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Chicago to Istanbul Airport round-trip?

    Cheapflights users have booked flights from Chicago to Istanbul Airport round-trip from $382. Other airlines that can offer you cheap pricing are Icelandair, from $517, and Turkish Airlines, from $633. Air Serbia is 63% cheaper than the average price of flights available within the next 90 days to this destination.

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

    Before booking your flight to Istanbul Airport from Chicago, check out the most reliable airlines to get you to your destination on time: Pakistan International Airlines (71%), MIAT Mongolian (71%), Turkish Airlines( 60%).

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

    The cheapest flight price from Chicago to Istanbul Airport is $301. On average you can expect to pay $1,477. The most popular route, (Chicago O'Hare Intl - Istanbul), can usually be booked for $640.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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 Chicago to Istanbul Airport?

    Currently, October is the cheapest month in which you can book a flight from Chicago to Istanbul Airport (average of $916). Flying from Chicago 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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Top 10 airlines flying from Chicago to Istanbul

Discover the top 10 airlines that operate flights from Chicago 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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air SerbiaCheapest$382Average$1,026FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$517Average$759FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$633Average$1,053FlexibilityNo cancel feeOn-time77%
DeltaCheapest$653Average$1,103FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$660Average$867FlexibilityNo cancel feeOn-time70%
LOTCheapest$683Average$985FlexibilityNo cancel feeOn-time81%
American AirlinesCheapest$700Average$934FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$721Average$857FlexibilityNo cancel feeOn-time75%
KLMCheapest$753Average$930FlexibilityNo cancel feeOn-time75%
Royal JordanianCheapest$769Average$828FlexibilityNo cancel feeOn-time61%

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