When looking for cheap flights, know that airlines tend to launch their sales on Tuesdays and end them on Thursdays, so don’t limit your searches to just the weekends. Additionally, airplanes are emptiest on Tuesdays, Wednesdays and Saturdays, so that’s when many deals can be found.
Advertised fare sales generally target the next two or three months of travel and have 14- to 21-day advance purchase requirements. Sometimes the best fares are not advertised and can be found through online search engines, like Fly.com.
Changing your departure or return date by one day can save major cash. The biggest savings typically come with flying on Thanksgiving or Christmas Day. The exception is if you’re traveling over a three-day weekend around Labor Day or Memorial Day. Then, everyone is looking to fly on the actual holiday, so that’s the perfect time to try and extend your vacation by a day.
And remember, airlines are required by the Department of Transportation to offer 24-hour free hold or cancellations as long as you are booking your ticket seven days before your travel date.