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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £390

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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
7 dic — 14 dic1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Istanbul are usually found in November or October, booked 54 days in advance, depart on a Friday or Tuesday and return on a Monday

Cheap 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 7 novembre 2025.

Round-trip from

£535

One-way from

£390

Popular in

June

Cheapest in

November

Average price

£629

Good round-trip deal

£471 or less

Good one-way deal

£416 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 1/4-15/4
  • 4 total stops
  • 49h 31m total
  • Chicago to Istanbul
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Etihad Airways
  • Etihad Airways
  • 4/5
  • 1 total stop
  • 39h 05m total
  • Chicago to Istanbul
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Highest demand for flights based on searches. 15% potential increase in price (£112 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Istanbul.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Istanbul.
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Find 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 7 novembre 2025.

sab 15/1118:30ORD - IST
1 stop20h 25mIcelandair
lun 8/1212:25IST - ORD
1 stop13h 55mIcelandair
Deal found 6/11£535
ven 28/1116:25ORD - IST
1 stop15h 30mKLM
mer 10/1204:50IST - ORD
1 stop19h 20mKLM
Deal found 5/11£551
lun 1/1216:25ORD - IST
1 stop15h 30mKLM
dom 7/1204:50IST - ORD
1 stop19h 20mKLM
Deal found 6/11£552
ven 28/1116:25ORD - IST
1 stop15h 30mKLM
sab 6/1217:55IST - ORD
1 stop29h 25mKLM
Deal found 5/11£554
lun 1/1216:26ORD - IST
2 stops15h 29mKLM
ven 5/1204:50IST - ORD
1 stop19h 20mKLM
Deal found 5/11£555
mar 25/1117:08ORD - IST
2 stops14h 47mKLM
dom 7/1217:55IST - ORD
1 stop29h 25mKLM
Deal found 6/11£557
mar 25/1114:35ORD - IST
2 stops17h 20mKLM
mar 2/1217:55IST - ORD
1 stop29h 25mKLM
Deal found 4/11£558
mer 26/1116:25ORD - IST
1 stop15h 30mMultiple Airlines
mer 10/1204:50IST - ORD
2 stops19h 30mMultiple Airlines
Deal found 5/11£560
mar 25/1117:20ORD - IST
1 stop25h 30mKLM
lun 8/1204:50IST - ORD
1 stop19h 20mKLM
Deal found 6/11£561

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 7 novembre 2025.
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

O'Hare Intl

Fly to

Istanbul

Route

Depart

Return

Price

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

dom 7/12

16:25-16:55

1 stop15h 30m

Istanbul

gio 26/3

04:50-16:10

1 stop19h 20m

£552

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

ven 6/2

16:25-16:55

1 stop15h 30m

Istanbul

gio 19/2

04:50-15:10

1 stop19h 20m

£552

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

sab 29/11

16:25-16:55

1 stop15h 30m

Istanbul

ven 5/12

04:50-15:10

1 stop19h 20m

£552

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

lun 16/2

16:25-16:55

1 stop15h 30m

Istanbul

gio 19/2

17:55-14:20

1 stop29h 25m

£554

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

dom 1/3

16:25-16:55

1 stop15h 30m

Istanbul

gio 5/3

17:55-14:20

1 stop29h 25m

£554

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

mar 20/1

13:58-16:55

2 stops17h 57m

Istanbul

ven 20/2

17:55-14:20

1 stop29h 25m

£557

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

mar 3/2

17:20-03:50

1 stop25h 30m

Istanbul

mar 17/2

17:55-14:20

1 stop29h 25m

£561

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

dom 1/3

16:25-16:55

1 stop15h 30m

Istanbul

ven 6/3

04:50-14:20

2 stops18h 30m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

mar 24/3

18:20-03:50

1 stop25h 30m

Istanbul

lun 30/3

04:25-15:00

1 stop18h 35m

£584

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

mar 24/3

12:50-22:45

2 stops25h 55m

Istanbul

mar 31/3

05:50-14:55

2 stops17h 05m

£588

Flights are sorted by cheapest return flights first.

Deals found on 6/11

Showing 1-10 of 22 results
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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?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Istanbul. Price data was last updated on 31 October 2025.

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 54 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £306). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £652). 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 7 novembre 2025.

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.

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 15h 30m. Fly via Scandinavian Airlines 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 cheapest airlines to fly from Chicago O'Hare Intl Airport to Istanbul Airport one-way?

    One-way options have recently been found by users for as low as £417 on Lufthansa. Other airlines that offer cheap prices include Air Serbia from £435 and KLM from £467 one-way.

  • 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 Pakistan International Airlines (68%), MIAT Mongolian (68%) and IndiGo (67%).

  • 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 £471, our data shows the cheapest flight currently is £404. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £986 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £306). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £652). 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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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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