The best pricing can be found in the month of February. Prices to A.B. Won Pat Intl from Chicago Midway average $1,842. You can even find prices in February for less than $1,842, as users have found deals to A.B. Won Pat Intl from as low as $1,611. The month of September appears to be one of the more expensive times to travel to A.B. Won Pat Intl from Chicago Midway. Flying in the targeted month can save you up to 8%.