Find cheap airlines flights from Chicago to Istanbul

You can choose from 3 airlines that fly from Chicago to Istanbul, including Turkish Airlines, LOT Polish Airlines, and British Airways. Turkish Airlines has lowest fares on this route.
Turkish Airlines logo Turkish Airlines
LOT Polish Airlines logo LOT Polish Airlines
British Airways logo British Airways
Airlines are determined based on actual purchased flight tickets from Chicago to Istanbul according to previous 12 months data from Trip.com.

Book direct flights from Chicago to Istanbul: One way flights from $580, round trip flights from $783. Find flight deals for the next 3 months below.

Displayed flight fares from Chicago to Istanbul are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Chicago to Istanbul

The distance between Chicago and Istanbul is approximately 8,810.37 km. It takes around 10 hours 31 minutes on average to fly from Chicago to Istanbul. Based on Trip.com's data travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight price$329
Cheapest round-trip ticket price$508
Off-season for travelSeptember
Peak season for travelJuly
Flight distance8,810.37 km
Average flight time10 hours 31 minutes
Popular airlineTurkish Airlines
Flight statistics for the Chicago–Istanbul route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com price insights on flights from Chicago to Istanbul

Which month has the cheapest one-way flights from Chicago to Istanbul?

The average price of one-way flights from Chicago to Istanbul purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Chicago to Istanbul is February, with an average price of $608; while the month with the highest flight price is usually December, with an average price of up to $1,118.

$1,118
$863
$608
$353
    Cheapest
  • $816
    Mar
  • $750
    Apr
  • $980
    May
  • $1,030
    Jun
  • $709
    Jul
  • $748
    Aug
  • $677
    Sep
  • $670
    Oct
  • $774
    Nov
  • $1,118
    Dec
  • $685
    Jan
  • $608
    Feb

What's the cheapest day to fly from Chicago to Istanbul?

Data is based on the average flight price for each day of the week from Chicago to Istanbul on Trip.com over the past 12 months.

Based on Trip.com data from the past 12 months, the cheapest day to fly from Chicago to Istanbul is Wednesday, with average prices lower than on other days. Avoid Saturday, as prices are usually highest then.

$965
$801
$637
$473
    Cheapest
  • $733
    Mon
  • $842
    Tue
  • $637
    Wed
  • $805
    Thu
  • $925
    Fri
  • $965
    Sat
  • $856
    Sun

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Istanbul (CHI-IST)?

    Based on Trip.com data, American Airlines offers one-way fares as low as $329 on Cheapest nonstop routes (e.g. ORD to SAW on Mon, Mar 16), while Scandinavian Airlines offers Cheapest nonstop round-trips from $508 departing on Mon, Apr 20 and returning on Mon, Apr 27.
  • At the moment, you can catch a nonstop flight from Chicago to Istanbul with the following airlines, including: Turkish Airlines British Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes around 10 hours 31 minutes to fly from Chicago (CHI) to Istanbul (IST).
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Istanbul is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 12 flight per week flying from Chicago to Istanbul. You can check the weekly schedule for popular airlines on this route below: Turkish Airlines: S/M/T/W/T/F/S -- TK006 (01:44)
  • To find best deals on flights from Chicago to Istanbul, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Mon, Mar 16, with one-way flights priced at just $329.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Turkish Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Istanbul travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Istanbul is September, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Chicago to Istanbul on March 17, 2026 with American Airlines, with prices starting at $428.
  • You can land at any one of the following hubs in Istanbul, with O'Hare International Airport to Istanbul Airport (ORD-IST) is by far the most common option on this route: Istanbul Airport (IST) Sabiha Gokcen International Airport (SAW) Ataturk Airport (ISL).
  • The time difference between Istanbul and Chicago is 9h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com airline insights on flights from Chicago to Istanbul

Which airlines offer the cheapest nonstop flights from Chicago to Istanbul?

Data is based on the average price of all nonstop flights from Chicago to Istanbul on Trip.com in the past 12 months.

Based on Trip.com data from the past 12 months, Qatar Airways offers the cheapest nonstop flights from Chicago to Istanbul, with an average price of $529.

$301
$529
$758
$987
$1,215
Qatar Airways
$529
Qatar Airways
United Airlines
$759
United Airlines
LOT Polish Airlines
$808
LOT Polish Airlines
Lufthansa
$819
Lufthansa
Turkish Airlines
$1,052
Turkish Airlines
KLM
$1,215
KLM

Which airlines operate the most flights from Chicago to Istanbul?

Data is based on the number of flights from Chicago to Istanbul operated by each airline on Trip.com in the past month.

Based on Trip.com data from the past month, Turkish Airlines/IndiGo/Uzbekistan Airways/Pakistan International Airlines/Miat Mongolian Airlines operates the most flights from Chicago to Istanbul, with 13 flight per week.

13
Turkish Airlines
13
Turkish Airlines
IndiGo
13
IndiGo
Uzbekistan Airways
13
Uzbekistan Airways
Pakistan International Airlines
13
Pakistan International Airlines
Miat Mongolian Airlines
13
Miat Mongolian Airlines

How many flights are there each day from Chicago to Istanbul?

Data is based on the number of flights from Chicago to Istanbul for each day of the week on Trip.com over the last month.

Based on Trip.com data from the past month, the most flights from Chicago to Istanbul depart on Saturday, and the fewest flights depart on Tuesday.

50
38
25
13
Highest
35
Mon
25
Tue
35
Wed
35
Thu
30
Fri
50
Sat
46
Sun

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.