I´m also pretty interested on the subject. I have EASA ATPL with 1500 hours as flight instructor and 4000 hours in A320, A340 and A350. I´m current in the A350 as first officer in a European legacy company. I´m willing to convert to FAA ATP and relocate to U.S. with my family. I´ve been looking at U.S. companies like United, Frontier, JetBlue, Spirit and Allegiant and they all require a right to work in the U.S. which I obviously don´t have. Do you guys think visa sponsorship would be unlikely with before mentioned companies also in the future?