FAs have very interesting schedules. As they work up seniority they have a ton of flexibility in how they space apart their required minimum number of shifts/overnights. Trading shifts and bidding for shifts is common. Additionally at some point in their seniority ladder they can start getting a regular set of shifts that get them back home to base daily, with occasional overnights.

I suspect this institutional flexibility is actually a natural consequence of the gendered nature of the role.