Originally Posted by Bin707

Booking a flight from YYZ-BOS early June. Selecting Tango+ gives a return fare of about $350. Go all the way through the screens, hit "Purchase". Get a message "The fare has increased" (to $450 or so). Go back, pick a different outbound time (with the same T+ fare), same thing. Anybody encountered this? Is it so difficult to build an inventory management system that is accurate? Left it for an hour, tried again. Same result. Note that the screen listing all the various fares still shows the individual T+ fares as available for the relevant flights, and your total price still reflects them then adds the taxes, it's just that you can't actually buy a ticket at those prices. Grrrrrrr.