So, I log into my CO account this morning, and it says that my flight has had a "schedule change" and is now departing ~2 hours earlier than the flight that I chose. The flight is for a family vacation, and since we're on a tight schedule on the last day, this is going to basically eliminate the possibility of doing any sight-seeing on the last day.

We really DO NOT want to change our flight, that's why we chose the flight we did. Hours of planning went into setting this all up. Since there are 12 of us going as 2 separate, large groups, I'm assuming that it's going to be impossible to put us all on one flight from a different carrier, nevermind all sitting together like we were on the original flight (again, a lot of planning went into that as well). Is there ANYTHING at all that I can do, or is it just one of those times where we're SOL and just accept that we lost the day? Everyone needs to be back the night of the original flight so they can go to work the following day, so re-scheduling the flight for the next day won't work