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.
Alaska isn't the only airline to increase its ticket change fees. American Airlines, Delta, United Airlines and US Airways all changed their fees to from $150 to $200 on domestic flights in May. The airline expects the fee increase to bring in $50 million in added revenue.