The cheapest time to buy flights to Las Vegas is generally , with a "sweet spot" typically around 40 to 44 days out . For the absolute lowest fares, you should aim to travel during the off-season months of January, February, and August . Best Booking Windows
While prices fluctuate constantly, data suggests specific windows for securing the best deals: $40 Cheap Flights to Las Vegas - Expedia cheapest time to buy flights to vegas