Lowest Logical Fare (LLF)
What is Lowest Logical Fare (LLF)?
Lowest Logical Fare (LLF) is a corporate travel management strategy that ensures employees book the cheapest available airfare that complies with company policies and traveler needs. Unlike the absolute lowest fare, LLF considers factors like layovers, travel time, airline agreements, and ticket flexibility to maintain efficiency.
For example, if a direct flight is slightly more expensive than a multi-stop option but saves significant travel time, it might still qualify as the LLF under corporate guidelines. Similarly, businesses may allow employees to book refundable tickets at a slightly higher fare if flexibility is required.
LLF helps companies reduce travel expenses while balancing employee productivity and comfort. Travel managers often set LLF parameters within online booking tools (OBTs) or corporate travel policies to automate fare selection and ensure compliance.