Airlines are scrambling for revenue anywhere they can find it. Fuel surcharges are now common across the industry, and can be several hundred dollars on overseas flights. Most US lines other than Southwest charge for all checked bags on domestic flights. Many now charge for picking your own seat, and charge more if you pick a decent seat by an exit row or bulkhead. (The kindest way to think of it is that the prices have increased, but you get a discount if you're willing to fly with no checked bag, sit in a lousy seat, and bring your own lunch.) Nobody includes meals on domestic flights any more, although I have to say that the $7 salads and sandwiches are often a lot better than the former free gray-green glop.
Reasons for traveling include recreation, tourism or vacationing, research travel, the gathering of information, visiting people, volunteer travel for charity, migration to begin life somewhere else, religious pilgrimages and mission trips, business travel, trade, commuting, and other reasons, such as to obtain health care or waging or fleeing war or for the enjoyment of traveling. Travellers may use human-powered transport such as walking or bicycling; or vehicles, such as public transport, automobiles, trains and airplanes.
Citizens from countries participating in the US Visa Waiver Program who wish to travel by air to the United States must obtain prior approval through the Electronic System for Travel Authorization (ESTA). ESTA is used by the U.S. government to screen eligible residents of Visa Waiver Program (VWP) countries before they board a plane to the U.S to determine whether or not they pose a law enforcement or security risk. VWP passengers are encouraged to apply for an ESTA when beginning to plan travel to the United States, using the convenient ESTA online form External site which may not meet accessibility guidelines. Passengers will be required to present proof of ESTA registration at time of check in and those who have not obtained prior approval via ESTA before departure will be denied boarding.
Travel dates back to antiquity where wealthy Greeks and Romans would travel for leisure to their summer homes and villas in cities such as Pompeii and Baiae. While early travel tended to be slower, more dangerous, and more dominated by trade and migration, cultural and technological advances over many years have tended to mean that travel has become easier and more accessible. Mankind has come a long way in transportation since Christopher Columbus sailed to the new world from Spain in 1492, an expedition which took over 10 weeks to arrive at the final destination; to the 21st century where aircraft allow travel from Spain to the United States overnight.