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$236+ Cheap flights from Illinois to Istanbul

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 1/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — IST
feb. 5 — feb. 121
jue. 2/5
jue. 2/12
1 adult, Economy
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Cheap flight deals from Illinois to Istanbul

Keep the following information in mind while searching for Illinois to Istanbul flight deals. Data was last updated enero 6, 2026.

Round-trip from

$530
(oojo)

One-way from

$236
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$946
From Illinois to Istanbul
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One-way flight from Illinois to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($172 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Illinois to Istanbul

Cheapest flights from Illinois to Istanbul
Explore the most affordable flight options available from Illinois to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 6, 2026.

This oojo deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/412:11 pmSTL - IST
2 stops20h 14mBritish Airways
mié. 2/117:35 amIST - STL
2 stops21h 38mBritish Airways
Deal found 1/6$530
This Lufthansa deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/204:50 pmSTL - IST
1 stop21h 55mLufthansa
vie. 4/35:40 amIST - STL
1 stop15h 45mLufthansa
Deal found 1/6$535
This Mytrip deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/204:05 pmSTL - IST
2 stops18h 00mMultiple Airlines
vie. 4/35:40 amIST - STL
1 stop15h 45mMultiple Airlines
Deal found 1/6$542
This oojo deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/412:11 pmSTL - IST
2 stops20h 14mBritish Airways
dom. 2/88:20 amIST - STL
2 stops23h 24mBritish Airways
Deal found 1/5$545
This Cheapflightsfares deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/115:04 pmSTL - IST
2 stops22h 21mBritish Airways
mar. 2/177:35 amIST - STL
2 stops25h 13mBritish Airways
Deal found 1/6$546
This oojo deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/59:33 amSTL - IST
2 stops22h 57mBritish Airways
lun. 2/163:15 pmIST - STL
2 stops58h 58mBritish Airways
Deal found 1/6$550
This FlightHub deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/43:50 pmSTL - IST
1 stop21h 55mMultiple Airlines
mar. 3/106:30 amIST - STL
2 stops40h 59mMultiple Airlines
Deal found 1/5$566
This oojo deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 1/1811:05 amSTL - IST
2 stops21h 20mBritish Airways
lun. 2/166:40 pmIST - STL
2 stops37h 42mBritish Airways
Deal found 1/6$568
This United Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/2611:25 amSTL - IST
2 stops26h 20mUnited Airlines
lun. 3/26:30 amIST - STL
2 stops41h 59mUnited Airlines
Deal found 1/5$576
This United Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/63:45 pmMLI - IST
2 stops17h 20mUnited Airlines
mar. 2/106:30 amIST - MLI
2 stops17h 39mUnited Airlines
Deal found 1/5$577
This Iberia deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/112:54 pmSTL - IST
2 stops17h 31mMultiple Airlines
mar. 2/177:35 amIST - STL
2 stops22h 37mMultiple Airlines
Deal found 1/4$577
This FlightHub deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/184:50 pmSTL - IST
1 stop21h 55mLufthansa
mié. 4/155:40 amIST - STL
1 stop15h 45mLufthansa
Deal found 1/6$586

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 2,558,603 searches. Data last updated enero 6, 2026.
Use the filters below to find and compare flights from Illinois to Istanbul that are best for you.

Fly from

Illinois

Fly to

Istanbul

Route

Depart

Return

Price

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 3/4

11:59 am-5:25 pm

2 stops20h 26m

Istanbul

mar. 3/10

7:35 am-9:11 pm

2 stops21h 36m

$530

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

vie. 3/20

4:05 pm-6:05 pm

2 stops18h 00m

Istanbul

vie. 4/3

5:40 am-1:25 pm

1 stop15h 45m

$542

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

vie. 2/6

9:33 am-5:25 pm

2 stops22h 52m

Istanbul

mar. 2/17

6:40 pm-6:00 pm

2 stops32h 20m

$545

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

jue. 2/5

9:33 am-5:30 pm

2 stops22h 57m

Istanbul

lun. 2/16

3:15 pm-5:13 pm

2 stops58h 58m

$550

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

jue. 3/19

2:00 pm-5:30 pm

2 stops19h 30m

Istanbul

jue. 3/26

7:35 am-9:11 pm

2 stops21h 36m

$560

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 2/4

2:54 pm-5:25 pm

2 stops17h 31m

Istanbul

dom. 2/8

8:20 am-8:13 pm

2 stops20h 53m

$560

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

mié. 3/4

3:50 pm-10:45 pm

1 stop21h 55m

Istanbul

mar. 3/10

6:30 am-3:29 pm

2 stops40h 59m

$566

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

dom. 1/18

11:05 am-5:25 pm

2 stops21h 20m

Istanbul

lun. 2/16

6:40 pm-11:22 pm

2 stops37h 42m

$568

St. LouisIstanbul

STL - IST

STLIST

Lambert-St Louis

jue. 2/26

11:25 am-6:05 pm

2 stops21h 40m

Istanbul

lun. 3/2

6:30 am-3:29 pm

2 stops41h 59m

$576

MolineIstanbul

MLI - IST

MLIIST

Moline Quad-City

vie. 2/6

10:47 am-6:05 pm

2 stops22h 18m

Istanbul

mar. 2/10

6:30 am-9:36 pm

2 stops24h 06m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/5

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Illinois with our price prediction graph.
Estimated round-trip 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 Illinois to Istanbul

What is the cheapest month to book a flight from Illinois to Istanbul?

Currently, February is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $418). Flying from Illinois to Istanbul in June is currently the most expensive (average of $840). 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 IL to IST?

Find hourly flight availability from Illinois 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 enero 6, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Istanbul as you normally would.

Weekly flight availability from Illinois to Istanbul

Explore weekly flight availability from Illinois 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 enero 6, 2026.

The most flights from USIL to TR5 are scheduled on a Monday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois to Istanbul?

    For as low as $530, British Airways can have you in Istanbul from Illinois in 20h 26m. The distance between Illinois and Istanbul is about 5707 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Illinois to Istanbul one-way?

    The cheapest airlines for a one-way flight from Illinois to Istanbul are Turkish Airlines ($320), Air Serbia ($443), and Royal Jordanian ($447).

  • What are the most popular routes from Illinois to Istanbul?

    Most travelers choose Chicago O'Hare Intl - Istanbul, Chicago O'Hare Intl - Istanbul Sabiha Gokcen or Chicago Midway - Istanbul when deciding on the best route from Illinois to Istanbul.

  • What are the most reliable airlines from Illinois to Istanbul?

    Consider Uzbekistan Airways (62%), Turkish Airlines (62%) or Pakistan International Airlines (62%) when booking your flight. These represent the most reliable airlines when flying from Illinois to Istanbul.

  • What are the cheapest flights from Illinois to Istanbul?

    Looking at all options, your cheapest flight can be booked for $419. While the most popular route (Chicago O'Hare Intl - Istanbul) can be booked for $645 on average, our data indicates $1,643 when flying from Illinois to Istanbul.

  • Can I find deals for flights from Illinois to Istanbul that include hotel bookings?

    Yes. In addition to deals on Illinois to Istanbul flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Istanbul.

  • Can I find deals for business class flights from Illinois to Istanbul?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Istanbul?

    Currently, February is the cheapest month in which you can book a flight from Illinois to Istanbul (average of $418). Flying from Illinois to Istanbul in June is currently the most expensive (average of $840). 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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Alternative routes for Illinois to Istanbul

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Illinois to Istanbul

Discover the top 10 airlines that operate flights from Illinois to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$421Average$660FlexibilityNo cancel feeOn-time76%
Air SerbiaCheapest$439Average$856FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$586Average$1,127FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$667Average$993FlexibilityNo cancel feeOn-time77%
KLMCheapest$719Average$775FlexibilityNo cancel feeOn-time75%
LOTCheapest$723Average$1,057FlexibilityNo cancel feeOn-time81%
Royal JordanianCheapest$733Average$797FlexibilityNo cancel feeOn-time61%
Etihad AirwaysCheapest$757Average$865FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$771Average$1,114FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$776Average$1,163FlexibilityNo cancel feeOn-time76%

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