Flying

• Booking flights for Tuesday evenings will save you the most money. Look for sales on Mondays, Tuesdays and Wednesdays; these are the days airlines release specials.
  
  

Hotels

• Sundays are the cheapest night to book hotel rooms because it is the last day of the weekend. You can often find deals if you book midweek in smaller towns or suburbs outside major cities. Use websites such as Priceline.com to pay exactly the price you want for a hotel room.
  
  

Car Rental

• Car rentals are often the hardest part of travel to find deals on. Although there is no "cheap day" to rent a car, try booking in advance or use discount websites such as Orbitz.com.
  
  

Bus

• If you are looking to vacation by bus, try booking a bus trip for midweek. The cheapest times to travel are early morning or late night when there are few people traveling. Keep in mind the earlier you book the more money you will save.
  
  

Off-Season

• The best time to book any vacations is during the off-season. This varies from place to place but is often during the winter and early spring months. Not only will you save hundreds of dollars, but you will not be visiting with as many tourists.