Ecotourism is a form of tourism, or a category of vacation similar to beach, adventure, health, or cultural, while the concept of sustainability can be applied to all types of tourism.
Best day to shop: FareCompareâs data shows that best time to book a flight in the U.S. is Tuesday at 3 p.m. eastern time. This day and time give you access to the best flight deals. Itâs when airlines release the most sales and the best time to book plane tickets. Learn more about this here. Best time-frame to shop: This varies depending on where you fly. 1  Domestic fares: The best time to buy airline tickets in the U.S. is between three months and 30 days before departure.
The Best Day to Buy Airline Tickets is Sunday. 1  A new study by Expedia and the Airlines Reporting Corporation analyzed billions of passenger flights in the first 10 months of 2016 and found that the best day of the week to buy is Sunday, especially so with 21-day advance purchases.