How does KAYAK find such low prices on flights from Illinois to Istanbul?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Istanbul.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Istanbul?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from Illinois to Istanbul?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul with an airline and back to Illinois with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Istanbul?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$334 CHEAP FLIGHTS from Illinois to Istanbul (IST)

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Flight Deals

Cheap Flights from Illinois to Istanbul

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Istanbul

Fri, Apr 16 - Mon, Apr 26

9:50 pm - 10:45 amORD Chicago O'Hare Intl-IST Istanbul

28h 55m2 stops Warsaw Frederic Chopin Gdansk Rebiechowo

11:35 am - 3:10 pmIST Istanbul-ORD Chicago O'Hare Intl

35h 35m2 stops Gdansk Rebiechowo Warsaw Frederic Chopin

$811LOT

Thu, Jan 7 - Thu, Jan 28

9:50 pm - 5:35 pmORD Chicago O'Hare Intl-IST Istanbul

34h 45m1 stop Warsaw Frederic Chopin

6:30 pm - 7:55 pmIST Istanbul-ORD Chicago O'Hare Intl

34h 25m1 stop Warsaw Frederic Chopin

$811LOT

Sun, Apr 4 - Sat, Apr 10

9:40 pm - 2:05 amORD Chicago O'Hare Intl-IST Istanbul

20h 25m1 stop Munich Franz Josef Strauss

6:00 am - 8:03 pmIST Istanbul-ORD Chicago O'Hare Intl

22h 03m2 stops Frankfurt am Main Detroit Metropolitan Wayne County

$811Lufthansa

Mon, Nov 9 - Sun, Nov 15

4:20 pm - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

16h 50m1 stop Frankfurt am Main

7:05 pm - 8:05 pmIST Istanbul-ORD Chicago O'Hare Intl

34h 00m1 stop Frankfurt am Main

$811Lufthansa

Sun, Apr 4 - Fri, Apr 9

7:05 am - 1:05 pmORD Chicago O'Hare Intl-IST Istanbul

22h 00m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main

3:45 am - 12:35 pmIST Istanbul-ORD Chicago O'Hare Intl

16h 50m1 stop Munich Franz Josef Strauss

$811Multiple Airlines

Mon, Nov 23 - Mon, Dec 7

6:30 pm - 11:55 pmORD Chicago O'Hare Intl-IST Istanbul

20h 25m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

6:30 pm - 5:20 pmIST Istanbul-ORD Chicago O'Hare Intl

31h 50m3 stops Warsaw Frederic Chopin Stockholm Arlanda Reykjavik Keflavik Intl

$812Multiple Airlines

Tue, Jan 26 - Mon, Feb 15

10:30 am - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

22h 40m2 stops Newark Frankfurt am Main

7:05 pm - 2:05 pmIST Istanbul-ORD Chicago O'Hare Intl

28h 00m2 stops Frankfurt am Main Amsterdam Schiphol

$815United Airlines

Sun, Feb 7 - Sat, Feb 13

4:20 pm - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

16h 50m1 stop Frankfurt am Main

6:30 am - 3:20 pmIST Istanbul-ORD Chicago O'Hare Intl

17h 50m1 stop Frankfurt am Main

$816United Airlines

Sun, Nov 29 - Tue, Dec 15

6:25 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

14h 30m1 stop Paris Charles de Gaulle

7:15 am - 4:15 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 00m1 stop Paris Charles de Gaulle

$816KLM

Tue, Dec 1 - Tue, Dec 8

6:25 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

14h 30m1 stop Paris Charles de Gaulle

7:15 am - 4:15 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 00m1 stop Paris Charles de Gaulle

$817KLM

Recent last minute flight deals from Illinois to Istanbul

Sun, Nov 1 - Sun, Nov 8

9:50 pm - 10:45 pmORD Chicago O'Hare Intl-IST Istanbul

15h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

6:30 am - 1:10 pmIST Istanbul-ORD Chicago O'Hare Intl

15h 40m1 stop Frankfurt am Main

$823Lufthansa

Sun, Nov 1 - Wed, Dec 16

9:50 pm - 10:45 pmORD Chicago O'Hare Intl-IST Istanbul

15h 55m2 stops Munich Franz Josef Strauss Frankfurt am Main

7:05 pm - 1:10 pmIST Istanbul-ORD Chicago O'Hare Intl

27h 05m1 stop Frankfurt am Main

$835Lufthansa

Mon, Nov 2 - Tue, Nov 17

6:25 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

14h 30m1 stop Paris Charles de Gaulle

7:15 am - 4:15 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 00m1 stop Paris Charles de Gaulle

$937Air France

Mon, Nov 2 - Fri, Nov 20

5:29 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

15h 26m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

7:15 am - 4:41 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 26m2 stops Paris Charles de Gaulle Minneapolis St Paul

$942Air France

Mon, Nov 2 - Wed, Nov 18

9:50 pm - 12:05 amORD Chicago O'Hare Intl-IST Istanbul

17h 15m1 stop London Heathrow

7:40 am - 1:45 pmIST Istanbul-ORD Chicago O'Hare Intl

15h 05m1 stop London Heathrow

$945British Airways

Mon, Nov 2 - Mon, Nov 9

9:50 pm - 12:05 amORD Chicago O'Hare Intl-IST Istanbul

17h 15m1 stop London Heathrow

6:30 pm - 6:45 pmIST Istanbul-ORD Chicago O'Hare Intl

33h 15m1 stop London Heathrow

$952British Airways

Wed, Nov 4 - Tue, Nov 24

3:15 pm - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

17h 55m1 stop Frankfurt am Main

6:30 am - 1:10 pmIST Istanbul-ORD Chicago O'Hare Intl

15h 40m1 stop Frankfurt am Main

$963United Airlines

Tue, Nov 3 - Tue, Nov 10

6:10 pm - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

15h 00m1 stop Frankfurt am Main

6:30 am - 1:10 pmIST Istanbul-ORD Chicago O'Hare Intl

15h 40m1 stop Frankfurt am Main

$963United Airlines

Mon, Nov 2 - Thu, Nov 26

6:25 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

14h 30m1 stop Paris Charles de Gaulle

7:15 am - 2:25 pmIST Istanbul-ORD Chicago O'Hare Intl

16h 10m2 stops Paris Charles de Gaulle Amsterdam Schiphol

$965KLM

Sun, Nov 1 - Sun, Nov 8

6:25 pm - 5:55 pmORD Chicago O'Hare Intl-IST Istanbul

14h 30m1 stop Paris Charles de Gaulle

7:15 am - 4:15 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 00m1 stop Paris Charles de Gaulle

$987KLM

Recent direct flight deals from Illinois to Istanbul

Tue, Dec 8 - Fri, Dec 25

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$821Turkish Airlines

Wed, Nov 11 - Wed, Nov 18

8:15 pm - 4:05 pmORD Chicago O'Hare Intl-IST Istanbul

10h 50mnonstop

3:35 pm - 6:20 pmIST Istanbul-ORD Chicago O'Hare Intl

11h 45mnonstop

$825Turkish Airlines

Tue, Nov 10 - Sat, Dec 5

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$831Turkish Airlines

Thu, Dec 3 - Sun, Dec 6

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$850Turkish Airlines

Fri, Feb 5 - Tue, Feb 16

8:15 pm - 4:05 pmORD Chicago O'Hare Intl-IST Istanbul

10h 50mnonstop

3:35 pm - 6:20 pmIST Istanbul-ORD Chicago O'Hare Intl

11h 45mnonstop

$871Turkish Airlines

Tue, Jan 12 - Tue, Jan 26

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$878Turkish Airlines

Thu, Jan 7 - Thu, Jan 28

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$878Turkish Airlines

Wed, Mar 3 - Tue, Mar 9

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 11:00 amIST Istanbul-ORD Chicago O'Hare Intl

12h 25mnonstop

$878Turkish Airlines

Thu, Jan 14 - Wed, Jan 20

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 10:00 amIST Istanbul-ORD Chicago O'Hare Intl

11h 25mnonstop

$878Turkish Airlines

Thu, Mar 4 - Wed, Mar 10

11:45 am - 7:10 amORD Chicago O'Hare Intl-IST Istanbul

10h 25mnonstop

7:35 am - 11:00 amIST Istanbul-ORD Chicago O'Hare Intl

12h 25mnonstop

$878Turkish Airlines

Useful Info

Low season	February
High season	June
Cheapest flight	$334

Best time to beat the crowds with an average 26% drop in price.

Most popular time to fly with an average 34% increase in price.

Flight from Chicago O'Hare Airport to Istanbul Airport

How does KAYAK find such low prices on flights from Illinois to Istanbul?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Istanbul.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Istanbul?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from Illinois to Istanbul?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Istanbul?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.