We do not have enough data on this route to provide a reliable graph showing how many days before departure it is the best to book.
However, usually the closer it is to the departure, the more expensive the tickets are.
The most popular airlines on the route Las Vegas McCarran - Houston George Bush: United Airlines (UA), Delta Airlines (DL), Frontier Airlines (F9).
Direct flights last about 2h 55min.
Direct flights available 2 days a week - Monday, Tuesday.
Direct flights: United Airlines (UA), Spirit Airlines (NK).
Las Vegas (NV) Houston (TX)