Can you "legally" divert to another airport?

[maxter]

Jetflyer wrote:
Uhm... sorry if this sounds stupid but I'm on a six hour flight and I thought I had loaded enough fuel on board the 767 but with very strong
headwinds
and high fuel consumption I'm unsure that the plane will have enough fuel to get to its destination safely. Is it possible for me to inform the
passengers that I might have to land elsewhere or to set a different destination in flight?

I was wondering the same, except I got a leaking fuel tank... Thanks for bringing it up.