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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £477

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
31 Jul — 7 Aug1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Chicago O'Hare Intl to Istanbul are usually found in March or November, booked 59 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Cheap flight deals from O'Hare Intl to Istanbul

Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl to Istanbul
Explore the most affordable flight options available from O'Hare Intl to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 July 2026.

Wed 15/715:40
ORD
-
IST
3 stops20h 50m
Multiple Airlines
Tue 28/717:20
IST
-
ORD
3 stops34h 32m
Multiple Airlines
Deal found 30/6£718
Mon 14/906:30
ORD
-
IST
2 stops21h 45m
Qatar Airways
Fri 18/920:05
IST
-
ORD
1 stop27h 00m
Qatar Airways
Deal found 1/7£719
Tue 3/1114:00
ORD
-
IST
2 stops17h 55m
Multiple Airlines
Tue 10/1107:15
IST
-
ORD
2 stops18h 22m
Multiple Airlines
Deal found 28/6£721
Tue 24/1117:45
ORD
-
IST
2 stops14h 50m
Multiple Airlines
Sun 6/1207:15
IST
-
ORD
2 stops19h 19m
Multiple Airlines
Deal found 1/7£722
Tue 1/906:00
ORD
-
IST
2 stops28h 35m
Qatar Airways
Mon 14/913:45
IST
-
ORD
1 stop33h 20m
Qatar Airways
Deal found 28/6£723
Sun 13/911:25
ORD
-
IST
Nonstop10h 20m
Turkish Airlines
Sun 20/906:30
IST
-
ORD
Nonstop11h 10m
Turkish Airlines
Deal found 1/7£723
Mon 31/806:00
ORD
-
IST
2 stops22h 15m
Qatar Airways
Tue 15/920:05
IST
-
ORD
1 stop27h 00m
Qatar Airways
Deal found 1/7£725
Thu 27/806:00
ORD
-
IST
2 stops21h 55m
Qatar Airways
Mon 14/920:05
IST
-
ORD
1 stop27h 00m
Qatar Airways
Deal found 28/6£726
Thu 27/811:25
ORD
-
IST
Nonstop10h 20m
Turkish Airlines
Tue 15/906:30
IST
-
ORD
Nonstop11h 10m
Turkish Airlines
Deal found 28/6£727
Thu 3/911:25
ORD
-
IST
Nonstop10h 20m
Turkish Airlines
Thu 17/906:30
IST
-
ORD
Nonstop11h 10m
Turkish Airlines
Deal found 30/6£728
Sun 30/819:20
ORD
-
IST
1 stop32h 55m
Qatar Airways
Sat 12/920:05
IST
-
ORD
1 stop27h 00m
Qatar Airways
Deal found 27/6£729

Find flight deals from O'Hare Intl to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 1 July 2026.

Round-trip from

£718

One-way from

£477

Popular in

May

Cheapest in

March

Average price

£919

Good round-trip deal

£1,035 or less
15/7-28/7
  • 15/7-28/7
  • 6 total stops
  • 55h 22m total
  • Chicago to Istanbul
Search Deals
Turkish Airlines
  • Turkish Airlines
  • 8/10
  • Nonstop
  • 10h 20m total
  • Chicago to Istanbul
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£116 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£21 potential savings vs. average return price).
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Average for round-trip flights in July 2026
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Istanbul.
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Cheapflights Fare Finder

 
Customise your flight search to find flights from O'Hare Intl 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 858,174 searches. Data last updated 1 July 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Istanbul Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 14/9

11:25-05:45

Nonstop10h 20m

Istanbul

Fri 18/9

06:30-09:40

Nonstop11h 10m

£778

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 29/7

19:05-00:25

1 stop21h 20m

Istanbul

Wed 19/8

08:15-21:16

2 stops21h 01m

£845

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 31/7

19:05-00:20

1 stop21h 15m

Istanbul

Fri 21/8

08:10-18:15

1 stop18h 05m

£875

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 20/11

08:00-18:40

2 stops49h 40m

Istanbul

Sat 28/11

20:10-14:30

1 stop27h 20m

£891

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 22/11

08:00-12:20

2 stops43h 20m

Istanbul

Sun 29/11

20:10-07:00

2 stops43h 50m

£892

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 17/8

16:50-01:20

1 stop24h 30m

Istanbul

Wed 19/8

17:20-14:15

1 stop28h 55m

£899

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 16/7

17:10-16:20

2 stops15h 10m

Istanbul

Tue 28/7

06:00-14:15

1 stop16h 15m

£921

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 23/7

20:25-12:35

1 stop32h 10m

Istanbul

Sat 22/8

13:45-08:35

1 stop26h 50m

£977

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 27/7

15:19-16:20

2 stops17h 01m

Istanbul

Mon 3/8

17:20-14:15

1 stop28h 55m

£977

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 17/7

15:19-16:20

2 stops17h 01m

Istanbul

Sun 2/8

06:00-15:10

2 stops17h 10m

£1,052

Flights are sorted by cheapest return flights first.

Deals found on 27/6

Showing 1-10 of 18 resultsSorted by cheapest first
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Best time to book a flight from O'Hare Intl to Istanbul

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

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

To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Istanbul Airport, you should look to book at least 58 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £634). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in May is currently the most expensive (average of £1,069). 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 ORD to IST?

Find hourly flight availability from O'Hare Intl 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 1 July 2026.

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

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

Related info for your journey

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

    There are many flights that can get you from Chicago O'Hare Intl Airport to Istanbul Airport in 10h 20m. Fly via Qatar Airways, British Airways, or Turkish Airlines to get the fastest option. Chicago O'Hare Intl Airport and Istanbul Airport are separated by a distance of 5455 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    The top 3 most reliable airlines when flying from Chicago O'Hare Intl Airport to Istanbul Airport are Turkish Airlines (68%), MIAT Mongolian (58%) and Uzbekistan Airways (53%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Istanbul Airport?

    While on average a flight from Chicago O'Hare Intl Airport to Istanbul Airport is generally £1,035, our data shows the cheapest flight currently is £906. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £746 for that flight.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £634). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in May is currently the most expensive (average of £1,069). 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

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

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

Yes, we can. To see specific flights from O'Hare Intl to Istanbul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes! Start tracking prices for O'Hare Intl to Istanbul flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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