When you search for Chicago-Tokyo flights, Wingie directly gathers and compares instant data from all airlines. You can see all Chicago-Tokyo flights together for the date you are looking for and choose the most suitable flight.
For Chicago-Tokyo flights, you can use Chicago Rockford Intl. Airport, Gary International Airport, Merrill C Meigs Airport, Chicago Midway Intl. Airport, O'Hare Intl. Airport as departure airport, and Haneda Airport, Narita Intl. Airport for arrival.
When the average prices are examined, the most suitable day for Chicago-Tokyo flights is Monday.