Flight Time from Chicago to Vienna

At the moment, several airlines serve connecting flights from Chicago to Vienna, including: LOT Polish Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

It takes about 8 hours 45 minutes to fly from Chicago to Vienna.

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 Vienna 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.

The cheapest months to fly from Chicago to Vienna is November, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Chicago to Vienna on December 29, 2025 with LOT Polish Airlines, with prices starting at €359.

You can land at any one of the following hubs in Vienna, with O'Hare International Airport to Vienna International Airport (ORD-VIE) is by far the most common option on this route: Vienna International Airport (VIE).

The time difference between Vienna and Chicago is 7h.

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.