It seems as if Spirit may have been selling tickets on third-party sites for more than those same tickets have been selling on their own site. There is some question as to the legality of this practice. I am in contact with a Washington D.C.-based consumer-rights law firm that is looking into Spirit's practices. Right now they are ONLY looking for people who bought a Spirit ticket on Orbitz, Expedia, Travelocity or any other third-party website.
They're also looking into one specific aspect of Spirit's online baggage charges. Have you paid online for your luggage on your outbound trip, but been unable to pay in advance for your return trip? If you have experienced this, this law firm would very much like to talk to you.
If you would like to participate, please email us at: SpiritAirlinesFacts@gmail.com. Or simply reply to this post.