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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £403

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 30/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Istanbul are usually found in November or February, booked 64 days in advance, depart on a Monday or Thursday 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 13 June 2025.

Round-trip from

£676

One-way from

£403

Popular in

June

Cheapest in

November

Average price

£1,013

Good one-way deal

£392 or less
KLM
  • KLM
  • 20/7-7/8
  • 3 total stops
  • 44h 15m total
  • Chicago to Istanbul
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Qatar Airways
  • Qatar Airways
  • 30/8
  • 1 total stop
  • 32h 35m total
  • Chicago to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price (£93 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£16 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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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

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 13 June 2025.

Sun 20/717:10ORD - IST
2 stops15h 10mKLM
Thu 7/817:05IST - ORD
1 stop29h 05mKLM
Deal found 12/6£676
Sun 13/709:00ORD - IST
2 stops34h 25mDelta
Mon 11/817:05IST - ORD
2 stops31h 40mDelta
Deal found 12/6£677
Sat 16/819:35ORD - IST
2 stops33h 30mLufthansa
Fri 29/817:55IST - ORD
1 stop27h 00mLufthansa
Deal found 10/6£680
Wed 3/916:30ORD - IST
1 stop27h 00mAir Serbia
Mon 8/904:20IST - ORD
1 stop20h 20mAir Serbia
Deal found 12/6£681
Thu 13/1111:55ORD - IST
Nonstop10h 25mTurkish Airlines
Wed 3/1207:35IST - ORD
Nonstop11h 35mTurkish Airlines
Deal found 13/6£687
Sat 6/916:00ORD - IST
1 stop13h 05mUnited Airlines
Sun 14/914:00IST - ORD
1 stop13h 55mUnited Airlines
Deal found 12/6£692
Fri 29/813:55ORD - IST
1 stop39h 10mEtihad Airways
Fri 5/907:30IST - ORD
1 stop33h 15mEtihad Airways
Deal found 12/6£703
Sat 6/909:42ORD - IST
2 stops30h 13mIcelandair
Thu 11/912:25IST - ORD
1 stop16h 50mIcelandair
Deal found 12/6£768
Mon 28/716:20ORD - IST
2 stops27h 05mAir France
Mon 4/804:20IST - ORD
1 stop18h 40mAir France
Deal found 13/6£782

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 13 June 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

Sun 20/7

17:10-16:20

2 stops15h 10m

Istanbul

Thu 7/8

17:05-14:10

1 stop29h 05m

£676

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 13/7

09:00-03:25

2 stops34h 25m

Istanbul

Mon 11/8

17:05-16:45

2 stops31h 40m

£677

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 16/8

19:35-13:05

2 stops33h 30m

Istanbul

Fri 29/8

17:55-12:55

1 stop27h 00m

£680

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 3/9

16:30-03:30

1 stop27h 00m

Istanbul

Mon 8/9

04:20-16:40

1 stop20h 20m

£681

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 13/11

11:55-07:20

Nonstop10h 25m

Istanbul

Wed 3/12

07:35-10:10

Nonstop11h 35m

£687

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 6/9

16:00-13:05

1 stop13h 05m

Istanbul

Sun 14/9

14:00-19:55

1 stop13h 55m

£692

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 29/8

13:55-13:05

1 stop39h 10m

Istanbul

Fri 5/9

07:30-08:45

1 stop33h 15m

£703

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 6/9

09:42-23:55

2 stops30h 13m

Istanbul

Thu 11/9

12:25-21:15

1 stop16h 50m

£768

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 28/7

16:20-03:25

2 stops27h 05m

Istanbul

Mon 4/8

04:20-15:00

1 stop18h 40m

£782

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 30/8

19:20-11:55

1 stop32h 35m

£403

Flights are sorted by cheapest return flights first.

Deals found on 11/6

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 9 June 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 64 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £159). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in August is currently the most expensive (average of £366). 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 13 June 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Istanbul Airport in the morning. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight at midday.

Weekly flight availability from Chicago O'Hare Intl Airport to Istanbul Airport

Explore weekly flight availability from O'Hare Intl 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 13 June 2025.

The most flights from ORD to IST are scheduled on a Monday (11 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 on average).

Rainfall in Istanbul by month

Plan your trip to Istanbul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Istanbul Airport ranges from 10.0 - 100.0 inches per month. December is typically the wettest month, when rainfall can reach 100.0 mm. July is typically the driest time to visit Istanbul Airport when rainfall is around 10.0 mm.

Temperature in Istanbul by month

Plan your trip to Istanbul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Istanbul Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

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 13 June 2025.
See what other customers who have flown with Emirates, Delta and KLM from Chicago to Istanbul have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very Good
3,265 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Delta
8.0
Very Good
7,946 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Air France
7.5
Good
1,463 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,584 reviews
Emirates
8.1
Very Good
3,265 reviews
Check prices

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Istanbul Airport round-trip?

    KLM, at £676, was found to be the cheapest airline from Chicago O'Hare Intl Airport to Istanbul Airport.Alternate airlines flying return to your destination include Delta and Lufthansa. These flights start at 13% lower than the current average price 3 months from now.

  • 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 £403 on Qatar Airways. Other airlines that offer cheap prices include Etihad Airways from £423 and United Airlines from £444 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 Uzbekistan Airways (52%), Turkish Airlines (52%) and Pakistan International Airlines (52%).

  • 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 £433, our data shows the cheapest flight currently is £339. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £629 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Istanbul Airport (average of £159). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in August is currently the most expensive (average of £366). 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
Yalova

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

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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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