Originally Posted by
corporate-wage-slave
A flight number change is the mechanism to switch aircraft type at the last moment, it is the fastest way to transfer passengers over and get them a seat, while maintaining the timings. However it often is not that tidy, and a delayed service is quite usual. As noted upthread there is a shortage of 78X aircraft.
Thanks CWS, hope they release first seats, at check-in they had them all blocked and I could not even pay for one if I wanted to …
At least managed to find a direct aisle seat