Just saw in the group it's JULY 19th. Makes much more sense.
And tickets are $800 per person. Yikes.
Don't be put off by that--it's way too far out for there to be better air fares yet. There are also other options than coming directly into Bangor. Portland is a 2-1/2 hour drive but the fares can be much better. Boston is a 3-1/2 - 4 hour drive but if you have the time, might be worth it for a lower fare as you can see more of the state to drive from there or spend a couple days in Boston. Manchester, NH is about the same driving time as Boston.