Question : Is there another way to get to Itami Airport (ITM) besides Chicago Midway International Airport (MDW)?
Answer : Chicago Midway International Airport is a superb airport, but in getting you to Osaka, there is a cheaper option – O'Hare International Airport. It's just 16 miles away and flights are being priced 15% cheaper over the upcoming two months.
Question : How long do most people stay in Osaka?
Answer : Of course you're not most people, but if you were, you'd stay roughly 11 days.
Question : If your plans are flexible, have you considered changing your departure day?
Answer : The cheapest day to fly in March is Wednesday. Being flexible with your travel days garners even more savings during booking.