Maximum Length of Stay (MaxLOS)

Maximum stay, or Maximum Length of Stay (MaxLOS), is a policy used in travel, particularly by airlines and hotels, to set a limit on the duration a traveler can stay at a destination while still qualifying for a specific fare or discount rate. 

MaxLOS prevents long-term bookings that might occupy inventory at lower rates by limiting the duration a guest can stay at a promotional or discounted rate. This allows businesses to keep availability for shorter, higher-paying stays, especially during high-demand periods.

For example, a hotel anticipates a major surge in demand for upcoming festival days and plans to raise the room rates for this period. It may introduce MaxLOS for all nights booked right before the price hike. This way, the hotel ensures that rooms are not occupied at lower rates through the high-demand festival period.