Originally Posted by
Kacee
AC has better redemption rates than UA, but the change/cancel fees on awards are absolutely brutal. $100 to change a flight, $150 to cancel. All that is free on a MileagePlus ticket.
With AC, you have the option to pay some extra miles upfront for an award that you can then cancel at any time, just like UA. Those extra miles you paid upfront are also refunded when you cancel. If you don't cancel, you'd still be paying fewer miles than you would with UA, even with those extra miles.