Luxury Travel Glossary

A curated glossary of business class, first class and luxury travel terms — from airline alliances to private jet vocabulary.

• Airfleet Age — Airfleet age is a key metric that reflects the average age of planes in an airline's fleet. It impacts fuel efficiency, maintenance needs, and passenger experience.
• Fares — Fares represent the published price of an airline ticket, defined by the carrier according to cabin class, route, season, and booking conditions.
• Fares basis code — A fare basis code is an alphanumeric sequence airlines assign to each fare to encode its booking class, validity, restrictions, refundability and mileage accrual.