Originally Posted by
gfunkdave
The allowable way to go about this (and what E&Y used to have us do on long term assignments, back in the day), is to buy an initial one-way aaa-bbb, then buy round trips bbb-aaa so you get the Saturday night stay. Not sure if that is an option for the OP.
That's exactly what our corp TA required us to do back in the era when Saturday night stay requirements were common.
For certain markets we could buy "open ended" tickets. An AAA-BBB-AAA R/T, where the return date was flexible and simply had to be selected within 1 year with a 72-hour advance request. (Pending availability of course, but it booked into a relatively available Y bucket as I recall.) Traveling during the year from BBB (or wherever else), even back to AAA on other tickets on the same airline, was permitted. But I haven't bought one of those since 2000 or so.