Originally Posted by
guv1976
Are there any situations, other than Kuwait's Fifth Freedom JFK-LHR and LHR-JFK flights, where the laws of the carrier's flag country require discrimination that is not also required by the laws of a flight's sending/receiving countries? Or is this a one-off situation merely involving these particular KU flights?
There have been. US carriers have been denied the ability to fly some blacklisted persons even when the blacklisted person is a free person and admissible in the sending and receiving countries. But that has mostly been an example of discrimination not based on citizenship.
U.S.-blacklisted countries' citizens have also been subject to extra-security screening on the basis of nothing more than citizenship status even when the free person with a blacklisted country's passport is admissible in the sending and countries. This has largely been an example of discrimination based on citizenship.
In both cases, the discrimination is driven by the carrier's flag country rules.