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Cheap flights from Istanbul Airport to Chicago O'Hare Intl Airport from £393

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 22/5. Fares are subject to change and may not be available on all flights or dates of travel.
IST — ORD
4 Mar — 11 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Istanbul to O'Hare Intl

Enter your travel dates to find the best prices.

Cheapest flights from Istanbul to O'Hare Intl
Explore the most affordable flight options available from Istanbul to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 February 2026.

Wed 1/406:00
IST
-
ORD
1 stop16h 30m
KLM
Wed 15/416:50
ORD
-
IST
1 stop24h 30m
KLM
Deal found 31/1£417
Tue 17/217:55
IST
-
ORD
1 stop29h 25m
KLM
Wed 6/516:50
ORD
-
IST
1 stop15h 30m
KLM
Deal found 1/2£418
Mon 30/317:20
IST
-
ORD
1 stop28h 55m
KLM
Sat 2/516:20
ORD
-
IST
1 stop16h 00m
KLM
Deal found 31/1£419
Sun 8/204:50
IST
-
ORD
1 stop19h 20m
KLM
Mon 16/214:12
ORD
-
IST
2 stops17h 43m
KLM
Deal found 2/2£421
Sun 22/204:50
IST
-
ORD
1 stop19h 20m
KLM
Wed 6/516:50
ORD
-
IST
1 stop15h 30m
KLM
Deal found 1/2£422
Thu 12/207:35
IST
-
ORD
Nonstop11h 30m
Turkish Airlines
Wed 25/219:59
ORD
-
IST
1 stop37h 01m
Turkish Airlines
Deal found 1/2£424
Thu 12/207:35
IST
-
ORD
Nonstop11h 30m
Turkish Airlines
Wed 18/219:59
ORD
-
IST
1 stop37h 01m
Turkish Airlines
Deal found 1/2£428
Tue 10/217:55
IST
-
ORD
1 stop29h 25m
KLM
Sun 22/217:20
ORD
-
IST
1 stop25h 30m
KLM
Deal found 1/2£431
Tue 17/304:50
IST
-
ORD
2 stops20h 20m
KLM
Tue 24/317:50
ORD
-
IST
2 stops15h 05m
KLM
Deal found 30/1£436
Mon 16/207:35
IST
-
ORD
Nonstop11h 30m
Turkish Airlines
Wed 18/219:59
ORD
-
IST
1 stop37h 01m
Turkish Airlines
Deal found 1/2£457
Sun 1/307:35
IST
-
ORD
Nonstop11h 30m
Turkish Airlines
Mon 16/312:50
ORD
-
IST
Nonstop10h 20m
Turkish Airlines
Deal found 2/2£470

Find flight deals from Istanbul to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to O'Hare Intl (ORD). 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 2 February 2026.

Round-trip from

£417

One-way from

£393

Popular in

August

Cheapest in

February

Average price

£463
KLM
  • KLM
  • 1/4-15/4
  • 2 total stops
  • 41h 00m total
  • Istanbul to Chicago
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SAUDIA
  • SAUDIA
  • 22/5
  • 2 total stops
  • 33h 10m total
  • Istanbul to Chicago
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customise your flight search to find flights from Istanbul to O'Hare Intl 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 858,174 searches. Data last updated 2 February 2026.
Use the filters below to find and compare flights from Istanbul Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Istanbul

Fly to

O'Hare Intl

Route

Depart

Return

Price

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Tue 17/3

04:50-17:10

2 stops20h 20m

Chicago O'Hare Intl

Tue 24/3

17:50-16:55

2 stops15h 05m

£436

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Mon 16/2

07:35-10:05

Nonstop11h 30m

Chicago O'Hare Intl

Wed 18/2

19:59-18:00

1 stop37h 01m

£457

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Sun 29/3

17:20-14:30

1 stop29h 10m

Chicago O'Hare Intl

Sat 2/5

16:20-01:20

1 stop25h 00m

£472

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Thu 12/2

07:35-10:05

Nonstop11h 30m

Chicago O'Hare Intl

Wed 25/2

11:50-07:10

Nonstop10h 20m

£472

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Wed 17/6

06:00-14:30

1 stop16h 30m

Chicago O'Hare Intl

Tue 30/6

16:20-01:20

1 stop25h 00m

£480

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Mon 30/3

17:20-14:15

1 stop28h 55m

Chicago O'Hare Intl

Wed 6/5

10:20-01:20

2 stops31h 00m

£481

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Wed 1/4

17:20-18:31

2 stops33h 11m

Chicago O'Hare Intl

Thu 30/4

16:20-01:20

1 stop25h 00m

£483

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Wed 25/2

17:55-17:43

2 stops32h 48m

Chicago O'Hare Intl

Wed 6/5

12:14-01:20

2 stops29h 06m

£484

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Tue 24/2

17:55-17:43

2 stops32h 48m

Chicago O'Hare Intl

Thu 7/5

10:40-01:20

2 stops30h 40m

£484

IstanbulChicago

IST - ORD

ISTORD

Istanbul

Thu 26/2

17:55-16:51

2 stops31h 56m

Chicago O'Hare Intl

Thu 7/5

10:40-01:20

2 stops30h 40m

£484

Flights are sorted by cheapest return flights first.

Deals found on 2/2

Showing 1-10 of 24 results
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Best time to book a flight from Istanbul to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Istanbul with our price prediction graph.
Estimated return 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 Istanbul Airport to Chicago O'Hare Intl Airport

How far ahead should I book a flight from Istanbul Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a return flight from Istanbul to O'Hare Intl. Price data was last updated on 30 January 2026.

The best time to book flights from Istanbul Airport to Chicago O'Hare Intl Airport is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Istanbul Airport to Chicago O'Hare Intl Airport?

Currently, July is the cheapest month in which you can book a flight from Istanbul Airport to Chicago O'Hare Intl Airport (average of £299). Flying from Istanbul Airport to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £471). 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 IST to ORD?

Find hourly flight availability from Istanbul to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 2 February 2026.

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

How much does it cost for a return flight from Istanbul Airport to Chicago O'Hare Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Istanbul to O'Hare Intl. 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 Istanbul Airport to Chicago O'Hare Intl Airport?

    A quick flight from Istanbul Airport to Chicago O'Hare Intl Airport can take about 11h 30m. KLM provides one of the quickest options available for as low as £457. The distance from Istanbul Airport to Chicago O'Hare Intl Airport is about 5455 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Istanbul Airport to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport from Istanbul Airport, check out the most reliable airlines to get you to your destination on time: Uzbekistan Airways (68%), Pakistan International Airlines (68%), MIAT Mongolian( 68%).

  • Can I find deals for flights from Istanbul to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Istanbul to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Istanbul to O'Hare Intl?

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

  • Can I find deals for business class flights from Istanbul to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Istanbul to O'Hare Intl 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 Istanbul Airport to Chicago O'Hare Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Istanbul Airport to Chicago O'Hare Intl Airport (average of £299). Flying from Istanbul Airport to Chicago O'Hare Intl Airport in August is currently the most expensive (average of £471). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Elk Grove Village

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When you search for this flight from Istanbul to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Istanbul to O'Hare Intl?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to O'Hare Intl from Istanbul.

Can Cheapflights find flights from Istanbul to O'Hare Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Istanbul to O'Hare Intl with no change fees.

Can Cheapflights notify me if prices for flights from Istanbul to O'Hare Intl become cheaper?

Not ready to book yet? You can track prices for flights from Istanbul to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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