Cheap flights from Warsaw to Chicago from €381

In general, February is the cheapest month to fly from Warsaw to Chicago O'Hare Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around €513. If you are unable to visit Chicago O'Hare Intl Airport during the month of February, then departing from Warsaw during the month September is also very affordable. Most momondo users find prices during this month for around €536.

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Warsaw when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around €595 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Warsaw for as low as €550 on momondo.

Historically, on average around 21% of flights between Warsaw and Chicago have experienced a delay on any given week. The average delay length over the past 12 months has been 146 minutes.

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

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

According to our data, LOT have had the fewest delays on this route over the last 12 months, with about 21% of their flights experiencing any sort of delay.

The number of flights available between Warsaw and Chicago O'Hare Intl Airport is 1 per day as of March 2026. The most frequent departure time is 16:00, with 100% of daily flights leaving in the afternoon.

As of March 2026, there are 8 flights per week flying from Warsaw to Chicago O'Hare Intl Airport. The most common day of the week flights depart is Wed, with 25% of flights taking off on this day.