This website will answer your question much better than I could: http://www.dailywritingtips.com/because-of-and-due-to/ To find this link, I used the follwoing search words "because of vs due to esl"

you would have to give an example , but it is correct to say: Due to the flight delays, I will be late for the meeting. Due to the recent rise in crime, there will be a curfew. Due to his prolonged illness, he will be quting his job. I hate dogs, due to the fact that I was bitten 3 times when I was a child.