It is possible to reach Jerico by bus from Medellin;
an interesting option for flying 2 different sites: go first to Fredonia by bus from Medellin; after landing at Puente Iglesias you can take the bus to Jerico for another flight and then (from the LZ Cauca Vejo) return to Medellin by bus...
regulation
before taking off you have to introduce your self with the ECOLAND/ Nube Extrema staff to get your insurance and your permission to fly.