Originally Posted by Flailey
Correct me if I'm wrong but the AA.com lowest fare guarantee should apply here if it's same exact flights and same exact fare code letter.
Assuming you didn't do something bad like buy it on another travel site that is...
Ok, you're wrong.
The lowest fare guarantee applies if you find a cheaper, identical fare on another travel website. It has nothing to do with the fare increasing between the time the first ticket is purchased and the time the traveler decides to buy a second ticket for a companion.