Its called pre-clearance, and it's available in Canada, Carribbean, Ireland and UAE. [1] Despite preclearance, the host country still has legal jurisdiction. I

Its called pre-clearance, and it's available in Canada, Carribbean, Ireland and UAE. [1] Despite preclearance, the host country still has legal jurisdiction. It allows flights to operate between a foreign country and a non-international U.S. airport. [1] https://en.wikipedia.org/wiki/United_States_border_preclearance https://en.wikipedia.org/wiki/United_States_border_precleara...