There's two airbridges at LBA (stands 7 and 8 b the way) and Jet2 make frequent use of both, assuming there isn't a BMI FK100 on 7 or a KLM FK100 on 8. Jet2's turnrounds are usually around the 30 minute mark in the peak season which allows a bit more time for disembarkation and embarkation from a single airbridge door.
Ryanair occasionally get parked on one of these stands and have been known to use the airbridges, but it's not normal. It probably depends on the number of pax.
BTW, I don't know what it costs to use an airbridge stand as opposed to a 'steps and weather' spot.