The City of San Antonio head Start and Early Head Start-CCP sites are located in the Edgewood ISD and San Antonio ISD.
A few airlines go beyond this basic requirement to include a provision that if your onward connecting flight from a hub airport is canceled on an outbound trip, and you no longer want to continue the trip, the airline will return you to your original airport at no charge and refund the entire value of the ticket.
You can avoid the change/cancel fee is if your flight is canceled or severely delayed. It may or may not be worth your time to show up for your flight and pray it's canceled or significantly delayed (you do have to check in for the flight).