While "be due" is about timing, "due to" is often used to explain the reason for something, functioning like "because of". The game was canceled due to heavy rain.
A polite (but often firm) way to disagree with someone. be due
It usually follows a noun or a "to be" verb (e.g., "The delay was due to a technical error"). 💡 Key Phrases to Know While "be due" is about timing, "due to"