What is Significant schedule change?
Significant schedule change: Under DOT rules, a significant change is a flight change such as departing 3+ hours early or arriving 3+ hours late on a domestic trip.
For international itineraries the threshold is 6 hours. A change of airport, added connections or a downgrade also count.
Source: U.S. Department of Transportation: Refunds
Where is this term explained in more depth?
Which terms are related?
- Involuntary denied boarding: Involuntary denied boarding, or bumping, is when an airline refuses to let a ticketed passenger board an oversold flight against their will.