Travelling with acoustic instruments is problematic.  The best solution is to get a cheap guitar you won't mind losing & a decent travel case.

I only travel with electric guitars, which are much more robust.  A good gig bag will get it on a plane as a carry on.  And a good travel case for it is typically cheaper & more trustworthy. 

On a couple of trips I've taken apart a cheap Squier (remove strings, unbolt neck & body) & it fits in a regular sized suitcase.  Put in a small pedal board or a mini Katana & once I've restrung it I'm good to practice at the hotel room.  Sometimes a gig with a rented amp!

Hope that helps.