Travelling from most locations, it is best to book your flight to Las Vegas during the month of January for the best deal, although there are other times of the year which offer great deals as well.
On average, from most locations, when planning your trip to Las Vegas, try to book your flight in the region of 54 days in advance for the cheapest prices.
From most locations, the cheapest day to fly to Las Vegas is Wednesday. Most users found that departing on a Saturday was most expensive.
On average you can find the best deals on plane tickets to Las Vegas when looking for flights with evening departure times.