I am looking at the fare QLE0JZ3 that AA has filed between LAX and NRT. The fare rules which can be accessed via EF or ITA say: PERMITTED 25DEC THROUGH 09JUN ... ON THE OUTBOUND TRANSPACIFIC SECTOR. SEASON IS BASED ON DATE OF ORIGIN. Great, but then, they go on: TRAVEL ON THIS FARE COMPONENT MUST COMMENCE BY MIDNIGHT ON 31MAR13 Now, this seems rather silly in my unsophisticated worldview. What's the point in offering a fare which is "permitted" till June but nobody is allowed to fly it after March?