Air distance from Guam, USA to Kupang, Indonesia is 2171.6 Miles (3494.8 Kilometers / 1885.8 Nautical Miles).
Flight duration time from Guam to Kupang is 4 hrs, 30 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.