Originally Posted by
fsa_ea
That's not what the T&Cs say, BUT I certainly hope you are correct!
Well, it allows open jaws, and doesn't exclude onward segments (doesn't indicate that the flights are only between those airports). In the past, similar wording has allowed, for example SFO-ORD-LGA, with the double miles only on the SFO-ORD portions.
Cheers.