You can readily identify an e-Passport, because it has a unique international symbol on the cover. Electronic System for Travel Authorization (ESTA) ESTA is an automated system that determines the eligibility of visitors to travel to the United States under the Visa Waiver Program (VWP). Authorization via ESTA does not determine whether a traveler is admissible to the United States.
Two to three weeks before the flight date, the price quotes start increasing. This is the time when business travelers start booking. While price drops are still possible, a chance of a price increase is much higher if you wait to book within this time period.
In other words, a trip that costs $629 if you leave tomorrow could cost just $206 if you depart at the end of August. Whoa. It's normal for flight prices to drop during the August Deal Zone, a period starting around Aug. 20-25 when airlines often slash fares 15 to 20 percent, airfare expert Rick Seaney told USA Today.