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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £316

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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
16 10월 — 23 10월1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Istanbul are usually found in November or October, booked 66 days in advance, depart on a Sunday 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 16 9월 2025.

Round-trip from

£555

One-way from

£316

Popular in

June

Cheapest in

November

Average price

£698

Good round-trip deal

£553 or less

Good one-way deal

£363 or less
KLM
  • KLM
  • 1/12-9/1
  • 2 total stops
  • 34h 50m total
  • Chicago to Istanbul
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Air Serbia
  • Air Serbia
  • 1/10
  • 1 total stop
  • 15h 20m total
  • Chicago to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price (£98 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in September 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

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 16 9월 2025.

월 1/1216:25ORD - IST
1 stop15h 30mKLM
금 9/104:50IST - ORD
1 stop19h 20mKLM
Deal found 14/9£555
화 4/1117:20ORD - IST
1 stop25h 30mMultiple Airlines
수 12/1104:50IST - ORD
2 stops19h 36mMultiple Airlines
Deal found 16/9£556
수 8/1016:30ORD - IST
1 stop15h 20mAir Serbia
목 27/1117:35IST - ORD
1 stop30h 00mAir Serbia
Deal found 15/9£557
토 4/1023:20ORD - IST
1 stop32h 30mAir Serbia
화 14/1016:35IST - ORD
1 stop29h 50mAir Serbia
Deal found 14/9£559
일 14/1217:20ORD - IST
1 stop25h 30mKLM
일 18/117:55IST - ORD
1 stop29h 25mKLM
Deal found 15/9£564
화 4/1113:25ORD - IST
2 stops18h 30mMultiple Airlines
월 17/1104:50IST - ORD
2 stops19h 36mMultiple Airlines
Deal found 15/9£565
토 6/1217:20ORD - IST
1 stop25h 30mKLM
화 6/104:50IST - ORD
1 stop19h 20mKLM
Deal found 14/9£571
토 4/1023:20ORD - IST
1 stop32h 30mAir Serbia
토 11/1004:20IST - ORD
1 stop24h 40mAir Serbia
Deal found 14/9£573
목 6/1113:25ORD - IST
2 stops18h 30mKLM
목 20/1117:55IST - ORD
1 stop29h 25mKLM
Deal found 14/9£575
화 18/1112:50ORD - IST
2 stops19h 55mMultiple Airlines
월 1/1220:00IST - ORD
2 stops33h 00mMultiple Airlines
Deal found 15/9£578
토 8/1117:20ORD - IST
1 stop25h 30mKLM
금 21/1104:50IST - ORD
2 stops18h 30mKLM
Deal found 16/9£578

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 16 9월 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

일 30/11

17:20-03:50

1 stop25h 30m

Istanbul

일 7/12

04:50-15:23

2 stops19h 33m

£556

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

목 6/11

17:20-03:50

1 stop25h 30m

Istanbul

목 20/11

17:55-14:20

1 stop29h 25m

£564

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

월 16/2

14:10-16:55

2 stops17h 45m

Istanbul

수 18/2

04:50-16:37

2 stops20h 47m

£565

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

화 4/11

16:56-16:55

2 stops14h 59m

Istanbul

수 12/11

04:50-15:26

2 stops19h 36m

£565

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

토 15/11

17:08-16:55

2 stops14h 47m

Istanbul

월 17/11

04:50-16:28

2 stops20h 38m

£565

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

화 4/11

13:25-16:55

2 stops18h 30m

Istanbul

월 17/11

04:50-15:26

2 stops19h 36m

£565

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

목 12/2

13:30-16:55

2 stops18h 25m

Istanbul

수 25/2

04:50-16:37

2 stops20h 47m

£565

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

금 26/12

16:25-16:55

1 stop15h 30m

Istanbul

목 8/1

17:55-14:20

1 stop29h 25m

£571

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

화 25/11

13:25-16:55

2 stops18h 30m

Istanbul

일 30/11

17:55-14:20

1 stop29h 25m

£575

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

화 18/11

12:50-17:45

2 stops19h 55m

Istanbul

월 1/12

20:00-20:00

2 stops33h 00m

£578

Flights are sorted by cheapest return flights first.

Deals found on 13/9

Showing 1-10 of 21 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 12 September 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 66 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 16 9월 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Istanbul Airport in the afternoon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight at midday.

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 15h 30m. Fly via KLM to get the fastest option. Chicago O'Hare Intl Airport and Istanbul Airport are separated by a distance of 5455 mi.

  • 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 (75%), MIAT Mongolian (75%) and IndiGo (68%).

  • 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 £561, our data shows the cheapest flight currently is £233. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £950 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

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