Book your flight at least 21 days in advance in order to snap up the cheap Chicago to Hong Kong flight deals.
Ideally, one should travel on weekdays to avoid weekend surcharges.
Avoid flying in heavy traffic as much as you can by booking your flight before or after major holidays.
Use OneTravel to search all possible options at nearby airports to find the cheap fare.
Check flexible travel dates to find low flight deal.
Use OneTravel coupons and promo codes at checkout to get cheaper deals on Chicago to Hong Kong flight tickets.
Booking at wee hours of the day can help you avail exciting deals on Chicago to Hong Kong airline tickets.