You don't get single days of leave under Bidline on any fleet.
Annual Leave days are only granted in multi day blocks, with your dates known several months ahead of time. Trying to protect a single day from duty for whatever reason (e.g. concert, sport, family event) is very difficult, even for the most senior, even on Trip lines, unless that day is embedded in a block of annual leave or is one of the fixed days off at the front of a Reserve Line..
Once on a blindline, Can you book single day leave on the LH fleet?
You can express a Blindline
preference for a day(s) off before rostering for the month starts, which
might be taken into account when the Blindline is built. No promises.
And how easy/difficult is it to book a single day leave once the roster is out?
You can't.
Once your final final roster is published you can see your working days and your days off. The assumption is you then plan your social arrangements to fit in with the published days off. At that late stage you can't suddenly try and book a leave day to get rid of a duty - if that facility existed it would be a very handy and very very popular way for pilots to get rid of nasty trips from their lines and it would be chaos in scheduling/current ops
!
Your last minute options if you really have to get a day off that has been clobbered by a published duty would be to:
1. Trip swap with a colleague or swap with an uncovered trip still held by ops ( but lots of caveats apply to the latter case) ,
2. Ask scheduling if it is possible to cash the trip in against the hours in your bank, if you have enough, or,
3. In exceptional circumstances ( e.g. a family crisis, not because you've got tickets to something) the company may grant you compassionate leave.
Protecting single days off has always been a problem when working Bidline and it has got much more difficult over the years. If you believe the promises
single days leave, nominating and protecting single days off, etc,
might be something that appears in a limited way under JSS.