Start with the complete itinerary
Check every segment. A replacement on the first flight can make the following connection impossible even when that second flight has not changed.
Compare these details
- Departure and arrival times.
- Departure and arrival airports.
- Number and length of connections.
- Cabin and confirmed seats.
- Baggage handling.
- Any separately ticketed travel.
Refund eligibility
If an airline cancels or significantly changes a flight, a refund may be due when the traveller chooses not to travel and does not accept the replacement, credit or other compensation. The exact conditions matter. See the changes and refunds policy and the current U.S. Department of Transportation guidance.
Do not accept automatically
Acceptance can reduce the options available later. Read the replacement first, especially when the trip contains other tickets, hotels or events that depend on the original arrival.