Travellers will need to consider renting a car to get around in Los Angeles and Las Vegas as public transport options are limited. The estimated travel cost for renting a car is around $80 for a day. The travel time for driving from New York to Los Angeles is approximately 40 hours, while the drive from Los Angeles to Las Vegas takes around 4 hours.
If you have more time, consider adding a trip to the Grand Canyon or a walking tour of New York's various neighbourhoods. If you have less time, skip the Santa Monica Pier and spend more time at the Griffith Observatory. Remember to wear comfortable shoes and clothing as there will be a lot of walking involved.