HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Istanbul

$379+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — IST
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago to Istanbul with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Chicago to Istanbul are usually found in January or November, booked 27 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 July 31, 2025.

Round-trip from

$813
(Etihad Airways)

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

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 July 31, 2025.

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 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
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/226:15 pmMDW - IST
2 stops25h 10mDelta
Tue 9/305:05 pmIST - MDW
2 stops33h 30mDelta
Deal found 7/30$833
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/231:30 pmORD - IST
2 stops18h 25mKLM
Sun 11/305:55 pmIST - ORD
1 stop29h 25mKLM
Deal found 7/29$852
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1010:30 pmORD - IST
1 stop14h 50mUnited Airlines
Fri 9/196:10 amIST - ORD
2 stops22h 01mUnited Airlines
Deal found 7/31$856
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.
Mon 9/1512:43 pmMDW - IST
2 stops19h 37mKLM
Thu 9/254:20 amIST - MDW
2 stops21h 15mKLM
Deal found 7/30$860
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/206:15 amMDW - IST
1 stop18h 40mMultiple Airlines
Tue 9/308:00 amIST - MDW
1 stop15h 58mMultiple Airlines
Deal found 7/30$973

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 July 31, 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

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

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

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 11/23

1:30 pm-4:55 pm

2 stops18h 25m

Istanbul

Sun 11/30

5:55 pm-2:20 pm

1 stop29h 25m

$852

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 9/10

10:30 pm-9:20 pm

1 stop14h 50m

Istanbul

Fri 9/19

6:10 am-8:11 pm

2 stops22h 01m

$856

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 18 results
1
2

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 July 25, 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 27 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, November is the cheapest month in which you can book a flight from Chicago to Istanbul Airport (average of $923). 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 July 31, 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 July 31, 2025.

The most flights from CHI 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 Chicago to Istanbul Airport?

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 July 31, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and LOT 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
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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!
United Airlines
7.4
Good
8,900 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

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.

  • 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 $813. Other airlines that can offer you cheap pricing are LOT, from $815, and Turkish Airlines, from $816. Etihad Airways is 21% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Chicago 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 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 (73%), MIAT Mongolian (73%), Turkish Airlines( 57%).

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

    The cheapest flight price from Chicago to Istanbul Airport is $341. On average you can expect to pay $1,856. The most popular route, (Chicago O'Hare Intl - Istanbul), can usually be booked for $631.

  • 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, November is the cheapest month in which you can book a flight from Chicago to Istanbul Airport (average of $923). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.