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.
LAST YEARâS SWEET SPOT: 21 TO 22 WEEKS IN ADVANCE You may already be too late to score a cheap flight to Europe this summer. The booking window for the cheapest tickets has moved further out, from 11 or 12 weeks in advance in 2009 to 21 or 22 weeks in 2011. (Average round-trip fares rose to about $1,500 last year from $1,100 in 2009; this yearâs outlook is no better.)