This is the risk you take when choosing JetBlue, especially internationally with few affordable last-minute alternatives. They are often cheaper than other airlines, but at much higher risk. I rarely book JB now without a backup option, and if it's someplace I truly *need* to be then I do not even consider JB as an option.
This would be a great addition to this already-existing thread:
I know its been discussed, but what in the heck happened to Jetblue
-J.