@Curtis I flew once and it was to Nashville Guitar Gathering.
be 100% ready to put it in the luggage hold.. that means you should be using a hard case not a gig bag if you want it in one piece.
tune the guitar down 1 whole step before heading to the airport.
now you have a hard case, a carry on bag, a suite case, guitar(s), amps, etc. how do you carry all that and airlines charge per pound for extra.
so yes acoustic is probably going to be your only choice if flying as all the gear costs$$.
I found this company http://www.backaxe.com/ it adds straps to your hard case so you can carry it like a gig bag and still have hands free for carry on and suite case.
the way down I was on 1 plane, my case was 2" too thick for the overhead (using a Godin TRIC foam case so they're a lot thicker). so the flight attendant headed to the luggage guy at the door. on the other end the luggage guy said he loved my case.
on the way back we had a layover, the plane was just a bit bigger and the guitar fit in overhead, and I finally lucked out and got an overhead that was in like row B not where I always am in row ZZ.
the security guys x-ray the case to see what's inside.
overall I had a pretty good experience flying with a guitar.. if you wanted a 2nd guitar (electric), amp, etc. you'll be paying for the poundage and you'll need to figure out how to carry it all with only 2 hands, as the person you're flying with will probably have their hands full too and no room to carry your guitar.