Originally Posted by
skywardhunter
You can't travel on a regular visa when you're part of an airline crew. And airline crew do require visas for some countries in some cases (based on their nationality), they can't just automatically travel anywhere because they're crew, OMAAT is wrong in that regard. The US certainly has specific restrictions and documentation requirements, I'd expect the UK to also likely have these.
My experience of this also shows that automatic entry to airline crew is not always given. Last year leaving DME, the aircraft went tech causing it to be cancelled.
I found out on a later flight that the crew had been admitted however could not be rostered on any LHR-Moscow flight for a considerable amount of time due to their immigration record in Russia.