Air distance from Guam, USA to Macau, China is 2133.7 Miles (3433.8 Kilometers / 1852.9 Nautical Miles).
Flight duration time from Guam to Macau is 4 hrs, 25 mins. This is the In-The-Air flight time. You should also add the taxi time, airport wait times and possible delays due to bad weather, etc. for the total flight duration time.