I was hoping someone here would know what if anything should be due.

If one flies for instance san-ewr-arn and gets involuntarily rerouted due to a missing flight crew on the first leg of the journey which ends up getting one to their final destination over 7hrs late. The ticket is on SK 117 but first leg is a domestic USA trip if I understood the info I found online vompensation would be due but maybe I misunderstood as I font have experience with this? If so which airline would I make the claim with?

The delay was clearly the airlines doing not wheather etc...

Any advice or facts are appreciated