Cheap flights from Chicago to Istanbul from $347

In general, March is the cheapest month to fly from Chicago to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $851. If you don’t want to visit Istanbul Airport in March, then you should wait until February to fly from Chicago, when ticket prices are also cheap, with an average price of $869.

Our data shows that Monday is the least expensive day to fly to Istanbul Airport. Tickets to fly out on this day can be as low as $914. On the other hand, Saturday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $985.

In the morning is the cheapest time of day to fly from Chicago to Istanbul Airport when you can find flight prices for as low as $922. Flying to Istanbul Airport in the morning is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $977.

Fly from Chicago O'Hare Intl to Istanbul for the best Chicago - Istanbul flight prices

You are more likely to see cheaper flights to Istanbul Airport from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $1,066 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Istanbul Airport from Chicago for as low as $881 on momondo.

There are 3 cabin classes available to choose from on Chicago to Istanbul Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 19% on your flight if you consider stops on a Chicago to Istanbul Airport flight.

As of October 2026, prices for Chicago to Istanbul Airport flights are approximately 27% more expensive when compared to flights at the same time last year.

Qatar Airways, KLM, and United Airlines are the most popular carriers operating from Chicago to Istanbul

Turkish Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Istanbul Airport from Chicago according to our data. Turkish Airlines is the first choice among our users, with 78% of people opting to fly with this airline when traveling to Istanbul Airport. Keep in mind that there are 14 different airlines that fly to Istanbul Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Chicago and Istanbul have experienced a delay on any given week. The average delay length over the past 12 months has been 188 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Turkish Airlines have had the least number of delays on this route over the last 12 months; with about 22% of their flights experiencing any sort of delay.

Warsaw (WAW) was the most common stop: 17% of momondo users choosing 1-stop flights on this route connected there.

Flights via Amman (AMM) offer the lowest average round-trip price of $282.

Flights connecting via London (LHR) have the shortest average one-way travel time: 13h 50m.

Frankfurt am Main (FRA) has the shortest average layover time for this route: 2h 04m.

8 flights are operational daily from Chicago to Istanbul Airport as of October 2026. The most popular departure time for this route is 11:00AM, with 55% of flights per day taking off at noon.

As of October 2026, there are 62 flights per week flying from Chicago to Istanbul Airport. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.