Just looking at flights uc from Dublin to Las Vegas for end of June next year and they are coming up on Expedia for about £1375. A great price I think. My question is do you definitely have to do the Dublin to heathrow bit or can you miss that bit and just board at heathrow. I've been tu Dublin many times so don't need a day there if I don't have to. Cheers.
Not heard of Dublin as a shortcut but hey...
You must do the DUB-LHR leg or you'll be classed as a no-show and the rest of your flight cancelled.