Question : How many days should you spend in Las Vegas if you're flying in from Marseille?
Answer : Of course you're not most people, but if you were, you'd stay roughly seven days.
Question : Is price more important than specific travel days for you?
Answer : The cheapest day to fly in February is Wednesday. Being flexible with your travel days garners you even more savings during your booking.
Question : How often are prices changing for this route?
Answer : Flight prices for MRS to LAS fluctuate a lot more than the majority of routes. However, the sooner you book, the better price you tend to get.