There's some availability to LAS that may be of use to you. Either take a roadtrip (236 miles) to get to your destination, or book a (separate) domestic flight to get to where you need to be. There are a ton of airlines on the route (including the big 3 US carriers) and you might even find service to a different LA-area airport that might be more suitable for your ultimate destination. Take precautions, though, when booking travel on separate tickets - if you miss your flight, you will have to buy a new ticket at the walk-up day-of-departure fare (or decide to rent a car after all)