How many days do you need in Las Vegas?

Three nights for a first visit. Two is plenty for a party weekend; four if you want the Grand Canyon or any other full day trip.

Why three: check-in is 3 p.m. (4 p.m. at the Caesars hotels) and checkout 11 a.m., so the first and last days are halves. Three nights gives two full days plus those halves: the center Strip and a show the first evening, Downtown or another resort cluster plus a pool hour the second, and one evening with no plan. The tourism authority's 2025 survey puts the average stay at 3.2 nights; first-timers stayed 3.8 and repeat visitors 3.1.

By type of trip

• Party weekend: two nights. Friday and Saturday are the club nights; a third buys a hangover at a $55 resort fee.
• Shows and restaurants: three to four, one headline evening each.
• Families: four, because the pool day and the desert day each want a morning.
• With the Grand Canyon: four at minimum, five with a rest day. Grand Canyon West is 2 to 2.5 hours each way; the South Rim is an overnight.
• One night: works if you treat it like a real trip: the center Strip at dusk, one show, one good meal.

What each extra night buys

• Fourth: the best extra night, a day trip without giving anything else up.
• Fifth: recovery.
• Six or more: only with a car and the national parks, or a convention.

Each extra night costs roughly $230 to $370 per person mid-range plus the resort fee, and by the fourth morning most people feel the city.

Which nights: Sunday to Thursday is cheaper, sometimes by half. For a first visit, Thursday to Sunday splits the difference.

The reasoning night by night is in how many days in Las Vegas, the hour-by-hour version in the 3-day itinerary, and the one-day plan in 24 hours in Las Vegas.