There are lots of mentions online about using old passport and booking the ticket in the maiden name which seems to be fine. You don't need to show your DL to anyone, so that's immaterial. From this prior thread you may need to reach out to Southwest and change the name on the ticket: https://www.southwestaircommunity.com/t5/International-Travel/Name-mismatch-between-ticket-and-passport-maiden-married-names/td-p/56205 Also if you happen to have just purchased a WGA ticket within the last 24 hours you can refund it and then purchase the ticket again with your maiden name. (Or if you had Business Select or Anytime, or if you were flying on points...although separate issue if you have updated your Rapid Rewards account with new name that it won't match.) If you were looking at a year or two I'd consider doing the renewal. I know it would be painful to renew a passport that has 5+ years left on it though.
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