From most locations, the cheapest flights to Las Vegas can be found during the month of January; however great deals can be found at other times.
From most locations, booking your flights to Las Vegas around 60 days prior to your departure date finds the best deals.
In general, booking your departure to Las Vegas for a Tuesday represents the best deal on airfare. Try to avoid a Thursday departure to stay away from the highest prices.
Generally, when visiting Las Vegas, noon flights represent the best value. afternoon flights are likely to have higher prices.