Yes you can. Not sure what LOA covered it but it's in the current FOM now. 4.1.2


Deviations from Scheduled Deadhead

Deviations from Scheduled Deadhead

A pilot who utilizes an off-rotation deadhead to travel from a domestic airport or an airport in the Hawaiian Islands (other than his base) in the vicinity of his permanent residence at the beginning of a rotation will be provided positive space on-line transportation if: • Company Business travel can be booked in TravelNet without overbooking • the routing does not pass through the pilot's base • the routing does not exceed the number of deadhead segments originally scheduled • the routing is scheduled to arrive at a reasonable time before his required report • the routing provides for a subsequent flight that is scheduled to arrive at a reasonable time before his required report • A reserve pilot must receive permission from Crew Scheduling to deviate at the beginning of a rotation.