I must agree with earlier thread from "Justhere". I am HP employee. I do not work is Customer Service. However, the biggest mistake people make is when an airline reaccommodates passengers due to irregular operations within the airline's control(mechanical, no crew members, oversold, etc). If the operating carrier cannot reaccommodate passenger on flights within the same airline. Most carriers will look into reaccommodating passengers with other airlines. Most airlines have interline agreements that allow the airlines to accept each other tickets. However, the tickets from the orginal airline must be endorsed by HP (or whatever airline is reaccomdating their passengers) to the airline the passenger will be flying on. Southwest does not interline with any other airline (with the exception of their partner ATA). So when passengers decide to make their own arrangements whether with WN or any other airline they pretty much on their own and the carrier will not reimburse you for making your own arrangements. However, if you make a complaint in writing via fax, mail, or e-mail they can refund your unused portion and they will give you a voucher for future travel. So remember let the airline handle your reaccommodations so they can properly endorse your ticket over to the next airline and it will not have to cost more money.