Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Hong Kong to Waterloo, Iowa as you normally would.
Most people fly into Waterloo (ALO) if they book a flight to Waterloo from Hong Kong. Waterloo is conveniently located just 8.5 km from Waterloo’s city centre.
Great question - HKG to ALO just means Hong Kong Intl Airport to Waterloo Airport. Now you’ll know what these unique codes when you look for flights!