Cheap flights from Chicago O'Hare Intl Airport to Istanbul from $323

In general, March is the cheapest month to fly from Chicago O'Hare Intl Airport to Istanbul Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $836. If you don’t want to visit Istanbul Airport in March, then you should wait until November to fly from Chicago O'Hare Intl Airport, when ticket prices are also cheap, with an average price of $882.

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 $927. On the other hand, Saturday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $989.

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Istanbul Airport when you can find flight prices for as low as $929. 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 $989.

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

You are more likely to see cheaper flights to Istanbul Airport from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Istanbul Airport for around $1,069 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 O'Hare Intl Airport for as low as $885 on momondo.

There are 3 cabin classes available to choose from on Chicago O'Hare Intl Airport 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 20% on your flight if you consider stops on a Chicago O'Hare Intl Airport to Istanbul Airport flight.

As of November 2026, prices for Chicago O'Hare Intl Airport to Istanbul Airport flights are approximately 15% more expensive when compared to flights at the same time last year.

Lufthansa is the most popular carrier operating from Chicago O'Hare Intl to Istanbul

Turkish Airlines, Lufthansa and KLM are the top three most popular airlines that fly to Istanbul Airport from Chicago O'Hare Intl Airport according to our data. Turkish Airlines is the first choice among our users, with 75% 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.

Reykjavik (KEF) 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 $471.

Flights connecting via Paris (CDG) have the shortest average one-way travel time: 14h 20m.

Frankfurt am Main (FRA) has the shortest average layover time for this route: 3h 02m.

As of November 2026, 7 flights take off from Chicago O'Hare Intl Airport and land in Istanbul Airport each day. The most common flight departure time for this route is 12:00PM, with 50% of daily flights taking off in the afternoon.

54 flights are operational weekly from Chicago O'Hare Intl Airport to Istanbul Airport as of November 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.