Find flights
Deals
When to book
FAQs

Cheap flights from Chicago O'Hare Intl Airport to Istanbul Airport from £343

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
21 Aug — 28 Aug1
1 adult

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 Wednesday 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 August 2025.

Round-trip from

£565

One-way from

£343

Popular in

June

Cheapest in

November

Average price

£716

Good round-trip deal

£493 or less
Icelandair
  • Icelandair
  • 27/12-12/1
  • 2 total stops
  • 34h 20m total
  • Chicago to Istanbul
Search Deals
Air Serbia
  • Air Serbia
  • 8/9
  • 1 total stop
  • 13h 00m total
  • Chicago to Istanbul
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£96 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Istanbul.
Search Deals

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 August 2025.

Sat 27/1218:30ORD - IST
1 stop20h 25mIcelandair
Mon 12/112:25IST - ORD
1 stop13h 55mIcelandair
Deal found 15/8£565
Thu 13/1113:30ORD - IST
2 stops18h 25mKLM
Wed 26/1104:50IST - ORD
2 stops20h 57mKLM
Deal found 15/8£567
Sat 27/923:45ORD - IST
Nonstop10h 20mMultiple Airlines
Sun 5/1004:45IST - ORD
2 stops46h 08mMultiple Airlines
Deal found 14/8£570
Sat 13/1216:25ORD - IST
1 stop15h 30mKLM
Sat 27/1217:55IST - ORD
1 stop29h 25mKLM
Deal found 15/8£573
Tue 4/1113:25ORD - IST
2 stops18h 30mKLM
Thu 13/1117:55IST - ORD
1 stop29h 25mKLM
Deal found 14/8£575
Tue 21/1016:00ORD - IST
1 stop17h 00mUnited Airlines
Tue 4/1106:30IST - ORD
1 stop15h 40mUnited Airlines
Deal found 14/8£578
Sun 9/1117:20ORD - IST
1 stop25h 30mMultiple Airlines
Tue 11/1104:50IST - ORD
2 stops18h 30mMultiple Airlines
Deal found 14/8£579
Sat 22/1117:20ORD - IST
1 stop25h 30mMultiple Airlines
Sun 30/1104:50IST - ORD
2 stops18h 30mMultiple Airlines
Deal found 15/8£580
Tue 21/1018:20ORD - IST
2 stops25h 05mDelta
Mon 3/1104:50IST - ORD
1 stop19h 20mDelta
Deal found 14/8£581
Tue 4/1116:58ORD - IST
2 stops25h 52mDelta
Mon 10/1104:50IST - ORD
1 stop19h 20mDelta
Deal found 15/8£581
Sun 28/1215:55ORD - IST
2 stops21h 50mUnited Airlines
Fri 9/106:30IST - ORD
1 stop22h 35mUnited Airlines
Deal found 15/8£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 16 August 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 11/1

14:10-16:55

2 stops17h 45m

Istanbul

Sat 24/1

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sun 1/2

13:35-16:55

2 stops18h 20m

Istanbul

Sat 7/2

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 13/1

13:30-16:55

2 stops18h 25m

Istanbul

Mon 26/1

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Thu 12/2

13:30-16:55

2 stops18h 25m

Istanbul

Wed 25/2

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 11/2

14:10-16:55

2 stops17h 45m

Istanbul

Wed 18/2

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Wed 28/1

14:10-16:55

2 stops17h 45m

Istanbul

Sat 31/1

04:50-16:37

2 stops20h 47m

£567

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Mon 22/12

16:25-16:55

1 stop15h 30m

Istanbul

Tue 6/1

17:55-14:20

1 stop29h 25m

£573

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Tue 4/11

13:25-16:55

2 stops18h 30m

Istanbul

Thu 13/11

17:55-14:20

1 stop29h 25m

£575

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Fri 31/10

16:58-16:55

2 stops15h 57m

Istanbul

Sat 8/11

17:55-14:20

1 stop29h 25m

£575

ChicagoIstanbul

ORD - IST

ORDIST

Chicago O'Hare Intl

Sat 8/11

16:09-16:55

2 stops15h 46m

Istanbul

Sun 16/11

17:55-14:20

1 stop29h 25m

£575

Flights are sorted by cheapest return flights first.

Deals found on 14/8

Showing 1-10 of 18 results
1
2

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 8 August 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 August 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.

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 16 August 2025.

The most flights from ORD to IST are scheduled on a Monday (14 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (11 on average).

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 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 (73%), MIAT Mongolian (73%) and Turkish Airlines (60%).

  • 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 £1,574, our data shows the cheapest flight currently is £435. When looking at the most popular route, (Chicago O'Hare Intl - Istanbul), you can expect to pay £952 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 Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from O'Hare Intl to Istanbul?

Deals for O'Hare Intl to Istanbul flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl to Istanbul?

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl to Istanbul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.