Reduced rates offered under special circumstances and for a limited time.

An option for rental cars that allows the driver to travel as many miles as desired without incurring additional costs; many car rentals are billed by the number of miles driven.

The minimum amount it costs to fly from Point A to Point B before fees, taxes, surcharges, and other costs are added to the price of the ticket.

The type of plane change that requires a passenger to take a connecting flight by the same airline to the destination point; opposite of offline connection.

The time it takes to go from Point A to Point B while actually in the air; between take-off and landing. Actual flying time does not include the time it takes for security checks, boarding, disembarking, and baggage claim or the time spent on the ground during layovers.

Special services, arrangements, or accommodations made in addition to the basic service provided by an airline, hotel, or other operator in the travel industry.

Hotel rooms that are side by side and have interior doors that open into one room or the other without the need to access the public areas of the hotel, such as the hallway.

The reduced ticket price often available when an airline ticket is purchased before arriving at the airport.

The Airline Reporting Corporation is responsible for licensing policies governing travel agents and it regulates the relationship between airlines and travel agencies.

The fee the airline carrier pays to the airport each time one of its airplanes lands at the airport.