Does anyone no if you can get insurance to cover the following senario:

Fly from Manchester to Las Vegas where we stay for 3 nights. Then fly From Vegas to Hawaii via LA (90 min stop). Then return 9 days later via same route and stay in Vegas for 2 more days, then fly back to Manchester. I cant find anywhere that covers the flights from Vegas to hawaii and back. I am worried about missed departure due to one of the flights being delayed. Any ideas would be very helpfull, thanks.