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Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £273

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 16/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
16 Nov — 23 Nov1
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 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 17 October 2025.

Round-trip from

£570

One-way from

£273

Popular in

June

Cheapest in

November

Average price

£669

Good round-trip deal

£513 or less

Good one-way deal

£345 or less
Delta
  • Delta
  • 14/11-23/11
  • 2 total stops
  • 54h 55m total
  • Chicago to Istanbul
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16/11
  • 16/11
  • 3 total stops
  • 29h 10m total
  • Chicago to Istanbul
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Highest demand for flights based on searches. 15% potential increase in price (£103 potential increase over avg. return price).
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Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
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Average for round-trip flights in October 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 17 October 2025.

Fri 14/1117:20ORD - IST
1 stop25h 30mDelta
Sun 23/1117:55IST - ORD
1 stop29h 25mDelta
Deal found 16/10£570
Thu 27/1110:35ORD - IST
2 stops21h 20mDelta
Tue 2/1217:55IST - ORD
1 stop29h 25mDelta
Deal found 16/10£573
Mon 29/1216:20ORD - IST
1 stop21h 25mUnited Airlines
Fri 6/206:30IST - ORD
2 stops22h 30mUnited Airlines
Deal found 15/10£573
Wed 12/1116:25ORD - IST
1 stop15h 30mDelta
Thu 20/1104:50IST - ORD
1 stop19h 20mDelta
Deal found 16/10£576
Sat 15/1116:25ORD - IST
1 stop15h 30mKLM
Wed 19/1104:50IST - ORD
1 stop19h 20mKLM
Deal found 16/10£578
Wed 5/1118:20ORD - IST
2 stops24h 30mDelta
Thu 13/1104:50IST - ORD
1 stop19h 20mDelta
Deal found 17/10£579
Wed 29/1017:25ORD - IST
1 stop15h 30mKLM
Sun 2/1104:50IST - ORD
1 stop19h 20mKLM
Deal found 15/10£579
Thu 6/1113:08ORD - IST
2 stops18h 47mKLM
Wed 19/1104:50IST - ORD
1 stop19h 20mKLM
Deal found 16/10£581
Fri 7/1116:25ORD - IST
1 stop15h 30mDelta
Mon 10/1104:50IST - ORD
2 stops25h 37mDelta
Deal found 15/10£583
Wed 12/1116:25ORD - IST
1 stop15h 30mDelta
Tue 25/1117:55IST - ORD
2 stops36h 41mDelta
Deal found 16/10£584
Mon 3/1117:20ORD - IST
1 stop25h 30mDelta
Thu 13/1104:50IST - ORD
1 stop19h 20mDelta
Deal found 17/10£584

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 17 October 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

Sat 6/12

17:20-03:50

1 stop25h 30m

Istanbul

Sat 13/12

17:55-14:20

1 stop29h 25m

£570

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 6/1

09:13-17:45

2 stops23h 32m

Istanbul

Tue 27/1

06:30-08:05

2 stops34h 35m

£577

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 5/11

17:20-03:50

1 stop25h 30m

Istanbul

Sun 9/11

04:50-15:10

1 stop19h 20m

£584

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 3/11

17:20-03:50

1 stop25h 30m

Istanbul

Wed 12/11

04:50-15:10

1 stop19h 20m

£584

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 3/11

17:20-03:50

1 stop25h 30m

Istanbul

Mon 10/11

04:50-21:27

2 stops25h 37m

£592

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 29/10

17:25-16:55

1 stop15h 30m

Istanbul

Thu 13/11

04:50-14:20

2 stops18h 30m

£595

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 23/11

18:20-22:45

2 stops19h 25m

Istanbul

Thu 4/12

06:30-13:10

1 stop15h 40m

£614

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 1/12

16:25-16:55

1 stop15h 30m

Istanbul

Sun 21/12

04:50-15:10

1 stop19h 20m

£619

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 1/12

15:50-16:55

2 stops16h 05m

Istanbul

Sat 20/12

04:50-14:20

2 stops18h 30m

£621

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 17/1

18:30-23:55

1 stop20h 25m

Istanbul

Wed 21/1

09:00-17:20

2 stops17h 20m

£622

Flights are sorted by cheapest return flights first.

Deals found on 15/10

Showing 1-10 of 23 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 10 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 £287). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £636). 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 17 October 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 18h 47m. Fly via Delta 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 £361 on LOT. Other airlines that offer cheap prices include KLM from £456 and Delta from £635 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 (69%), MIAT Mongolian (69%) 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 £584, our data shows the cheapest flight currently is £342. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £961 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 £287). Flying from Chicago O'Hare Intl Airport to Istanbul Airport in June is currently the most expensive (average of £636). 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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