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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £378

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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
8 Jun — 15 Jun1
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 85 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 9 May 2026.

Mon 24/817:10
ORD
-
IST
1 stop26h 20m
Delta
Tue 8/906:00
IST
-
ORD
2 stops18h 45m
Delta
Deal found 4/5£656
Wed 16/1223:55
ORD
-
IST
1 stop31h 05m
Air Serbia
Fri 25/1216:40
IST
-
ORD
1 stop33h 05m
Air Serbia
Deal found 8/5£666
Sat 26/1219:15
ORD
-
IST
1 stop24h 25m
Scandinavian Airlines
Mon 11/105:30
IST
-
ORD
1 stop20h 15m
Scandinavian Airlines
Deal found 8/5£667
Sat 12/919:20
ORD
-
IST
1 stop32h 35m
Qatar Airways
Sun 20/920:05
IST
-
ORD
1 stop27h 00m
Qatar Airways
Deal found 5/5£668
Fri 6/1107:00
ORD
-
IST
2 stops36h 40m
Scandinavian Airlines
Sat 14/1105:30
IST
-
ORD
2 stops25h 34m
Scandinavian Airlines
Deal found 6/5£669
Wed 29/711:25
ORD
-
IST
Nonstop10h 20m
Turkish Airlines
Wed 26/806:30
IST
-
ORD
Nonstop11h 10m
Turkish Airlines
Deal found 4/5£670
Sun 15/1118:50
ORD
-
IST
1 stop27h 10m
Qatar Airways
Mon 30/1120:10
IST
-
ORD
1 stop27h 20m
Qatar Airways
Deal found 5/5£673
Thu 5/1118:50
ORD
-
IST
1 stop38h 50m
Qatar Airways
Mon 23/1120:10
IST
-
ORD
1 stop27h 20m
Qatar Airways
Deal found 6/5£675
Mon 12/1019:20
ORD
-
IST
1 stop39h 15m
Qatar Airways
Fri 30/1012:00
IST
-
ORD
1 stop35h 30m
Qatar Airways
Deal found 6/5£676
Sat 5/914:30
ORD
-
IST
2 stops29h 00m
Delta
Wed 16/906:00
IST
-
ORD
1 stop16h 30m
Delta
Deal found 5/5£679
Sun 27/1219:15
ORD
-
IST
1 stop24h 25m
Scandinavian Airlines
Thu 7/105:30
IST
-
ORD
1 stop20h 15m
Scandinavian Airlines
Deal found 8/5£681
Sat 14/1117:20
ORD
-
IST
1 stop15h 35m
Delta
Mon 30/1117:55
IST
-
ORD
2 stops32h 39m
Delta
Deal found 6/5£683

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 9 May 2026.

Round-trip from

£656

One-way from

£378

Popular in

June

Cheapest in

March

Average price

£999

Good round-trip deal

£669 or less
Delta
  • Delta
  • 24/8-8/9
  • 3 total stops
  • 45h 05m total
  • Chicago to Istanbul
Search Deals
Qatar Airways
  • Qatar Airways
  • 9/8
  • 1 total stop
  • 39h 15m total
  • Chicago to Istanbul
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£148 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Istanbul.
Search Deals

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 9 May 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

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 1/8

17:18-03:30

2 stops26h 12m

Istanbul

Fri 11/9

06:00-21:36

2 stops23h 36m

£687

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 18/9

19:20-11:55

1 stop32h 35m

Istanbul

Sun 20/9

20:05-15:05

1 stop27h 00m

£740

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 2/6

16:20-01:20

1 stop25h 00m

Istanbul

Tue 9/6

06:00-15:05

2 stops17h 05m

£783
Fastest return journey

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 20/7

16:50-16:20

1 stop15h 30m

Istanbul

Mon 17/8

06:00-14:30

1 stop16h 30m

£806

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 3/7

18:00-03:30

2 stops25h 30m

Istanbul

Thu 16/7

06:00-14:15

1 stop16h 15m

£823

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 29/5

16:20-01:20

1 stop25h 00m

Istanbul

Fri 12/6

06:00-14:15

1 stop16h 15m

£831

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 7/9

19:15-01:20

2 stops22h 05m

Istanbul

Tue 20/10

04:30-21:33

3 stops25h 03m

£845

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 3/9

19:15-01:20

2 stops22h 05m

Istanbul

Wed 16/9

04:30-21:36

3 stops25h 06m

£845

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 19/6

16:20-01:20

1 stop25h 00m

Istanbul

Fri 26/6

04:25-15:10

1 stop18h 45m

£865

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 4/6

16:20-01:20

1 stop25h 00m

Istanbul

Tue 21/7

06:00-14:15

1 stop16h 15m

£879

Flights are sorted by cheapest return flights first.

Deals found on 6/5

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 84 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 £619). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £999). 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 9 May 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 25h. Fly via Delta, Qatar Airways, or KLM 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 (71%), MIAT Mongolian (63%) and Pakistan International Airlines (56%).

  • 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 £875, our data shows the cheapest flight currently is £625. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £727 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 £619). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £999). 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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