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.

$323 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 30 - Sun, May 9

9:50 pm - 10:30 amORD Chicago O'Hare Intl-IST Istanbul

28h 40m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice

6:45 am - 7:50 pmIST Istanbul-ORD Chicago O'Hare Intl

21h 05m1 stop Warsaw Frederic Chopin

$812LOT

Sun, Nov 29 - Sun, Dec 6

6:30 pm - 2:00 pmORD Chicago O'Hare Intl-IST Istanbul

34h 30m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Warsaw Frederic Chopin

8:20 am - 5:20 pmIST Istanbul-ORD Chicago O'Hare Intl

18h 00m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$812Multiple Airlines

Sun, Mar 21 - Sun, Mar 28

5:20 pm - 10:45 pmORD Chicago O'Hare Intl-IST Istanbul

21h 25m1 stop Frankfurt am Main

5:55 pm - 12:55 pmIST Istanbul-ORD Chicago O'Hare Intl

27h 00m1 stop Frankfurt am Main

$813Lufthansa

Wed, Mar 17 - Sun, Mar 28

5:20 pm - 6:10 pmORD Chicago O'Hare Intl-IST Istanbul

16h 50m1 stop Frankfurt am Main

5:55 pm - 12:55 pmIST Istanbul-ORD Chicago O'Hare Intl

27h 00m1 stop Frankfurt am Main

$813Lufthansa

Sun, Nov 29 - Tue, Dec 15

7:10 pm - 4:40 amORD Chicago O'Hare Intl-IST Istanbul

24h 30m3 stops Kastrup Copenhagen Stockholm Arlanda Belgrade Nikola Tesla

5:25 am - 4:45 pmIST Istanbul-ORD Chicago O'Hare Intl

20h 20m3 stops Belgrade Nikola Tesla Stockholm Arlanda Kastrup Copenhagen

$814Multiple Airlines

Fri, Jan 29 - Fri, Feb 12

3:17 pm - 5:30 pmORD Chicago O'Hare Intl-IST Istanbul

17h 13m2 stops Boston Logan Intl London Heathrow

8:25 am - 8:24 pmIST Istanbul-ORD Chicago O'Hare Intl

20h 59m2 stops London Heathrow Philadelphia

$815British Airways

Thu, Apr 29 - Tue, May 11

5:10 pm - 11:50 pmORD Chicago O'Hare Intl-IST Istanbul

22h 40m2 stops Krakow J. Paul II Balice Warsaw Frederic Chopin

6:45 am - 3:10 pmIST Istanbul-ORD Chicago O'Hare Intl

16h 25m1 stop Warsaw Frederic Chopin

$815LOT

Mon, Feb 1 - Sun, Feb 7

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

Fri, Apr 23 - Fri, May 7

4:05 pm - 1:05 pmORD Chicago O'Hare Intl-IST Istanbul

13h 00m1 stop Frankfurt am Main

2:00 pm - 7:55 pmIST Istanbul-ORD Chicago O'Hare Intl

13h 55m1 stop Frankfurt am Main

$817United Airlines

Fri, Mar 5 - Fri, Mar 19

3:59 pm - 5:30 pmORD Chicago O'Hare Intl-IST Istanbul

16h 31m2 stops New York John F Kennedy Intl London Heathrow

8:25 am - 9:48 pmIST Istanbul-ORD Chicago O'Hare Intl

21h 23m2 stops London Heathrow Boston Logan Intl

$820British Airways

Recent last minute flight deals from Illinois to Istanbul

Mon, Nov 9 - Mon, Dec 14

6:50 pm - 9:05 pmORD Chicago O'Hare Intl-IST Istanbul

17h 15m1 stop Amman Queen Alia Intl

2:05 pm - 7:25 amIST Istanbul-ORD Chicago O'Hare Intl

26h 20m1 stop Amman Queen Alia Intl

$842Royal Jordanian

Tue, Nov 10 - Tue, Nov 17

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

20h 25m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

8:40 am - 5:20 pmIST Istanbul-ORD Chicago O'Hare Intl

17h 40m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$863Multiple Airlines

Sun, Nov 8 - Mon, Dec 14

6:50 pm - 9:05 pmORD Chicago O'Hare Intl-IST Istanbul

17h 15m1 stop Amman Queen Alia Intl

2:05 pm - 7:25 amIST Istanbul-ORD Chicago O'Hare Intl

26h 20m1 stop Amman Queen Alia Intl

$896Royal Jordanian

Mon, Nov 9 - Mon, Nov 16

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

16h 50m1 stop Frankfurt am Main

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

15h 40m1 stop Frankfurt am Main

$913Lufthansa

Tue, Nov 10 - Mon, Mar 1

9:50 pm - 2:00 pmORD Chicago O'Hare Intl-IST Istanbul

31h 10m1 stop Warsaw Frederic Chopin

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

34h 25m1 stop Warsaw Frederic Chopin

$927LOT

Tue, Nov 10 - Thu, Nov 12

6:30 pm - 4:40 amORD Chicago O'Hare Intl-IST Istanbul

25h 10m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Belgrade Nikola Tesla

5:45 pm - 2:45 pmIST Istanbul-ORD Chicago O'Hare Intl

30h 00m1 stop Belgrade Nikola Tesla

$927Multiple Airlines

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

$928Lufthansa

Sun, Nov 8 - Wed, Nov 18

6:50 pm - 12:20 pmORD Chicago O'Hare Intl-IST Istanbul

32h 30m1 stop Doha Hamad Intl

8:10 pm - 2:30 pmIST Istanbul-ORD Chicago O'Hare Intl

27h 20m1 stop Doha Hamad Intl

$931Qatar Airways

Tue, Nov 10 - Mon, Mar 1

9:50 pm - 11:10 amORD Chicago O'Hare Intl-IST Istanbul

28h 20m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice

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

34h 25m1 stop Warsaw Frederic Chopin

$940LOT

Sun, Nov 8 - Thu, Nov 12

6:50 pm - 6:40 pmORD Chicago O'Hare Intl-IST Istanbul

38h 50m1 stop Doha Hamad Intl

1:50 pm - 2:30 pmIST Istanbul-ORD Chicago O'Hare Intl

33h 40m1 stop Doha Hamad Intl

$976Qatar Airways

Useful Info

Low season	February
High season	June
Cheapest flight	$323

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

Most popular time to fly with an average 33% 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.