JetBlue only seasonal to Portland Maine
 

There is a group of us cruising to Hawaii over Maine's spring break. We planned far ahead of time and booked JetBlue flights on the very day they opened to book for April 2019 (July 16th, I think.)

It is beyond frustrating to have the airline up and cancel your flights - JetBlue won't be offering that itinerary. We'll refund your money (of course you will) but you have to make other arrangements. Fortunately we have almost six months to do so, but geez...

We have homes in Florida and Maine and JetBlue has been our airline for at least a decade. At least they will still be flying to Portland Maine in the summer...for now...

At least you have seasonal service still. JetBlue is outright cancelling service to Daytona Beach, so my use for them goes to 0. Looks like Delta and American will be getting my money from now on.

A good chance that your travel insurance will pick up the difference if there is any.

Problem with B6 is that it doesn't interline with any other US carrier so it can't simply write your ticket over to DL, AA, or UA. Those three carriers cancel and rearrange routes all the time. But, the carriers can be quite flexible. B6 can't.