Originally Posted by
TomMM
Hang out in the BA forum. It can be amazing to read when a Brit books something like LHR-MIA-MEX because it is so cheap but are denied boarding in LHR because they don’t have an ETSA.
Or they do have an ESTA, but only a one-way ticket to Mexico or Canada:
https://amp.theguardian.com/us-news/...ry-requirement