Overnight (RON)
RON stands for 'remain overnight', the operational term for an aircraft and crew staying at a destination between your outbound and return flights. Overnights add crew hotels and per-diem, aircraft parking or hangarage, sometimes de-icing in the morning, and the daily minimum on days the aircraft does not fly. For a two-night trip on a light jet these extras typically add $2,000–$5,000; for a large-cabin jet with three crew at an expensive destination, considerably more. The alternative is a 'drop and return' where the aircraft goes home and comes back, which costs extra flying but avoids waiting charges; the break-even is usually around two to three nights.