These trips are quick and inexpensive (you always only pay your share of fuel/oil/airport costs. Typically less than EUR100 for the day and maybe EUR50 more if we spend the night and pay for an inexpensive hotel or apartment and some chow.
I always carry two mountain bikes in the plane but you can bring your bikes (wheels must come off) if you want. At destination it is OK to do your own thing and simply meet at the plane for the return flight.
REGISTER HERE SO I"LL CONTACT YOU FOR UNANNOUNCED FLIGHTS