Originally Posted by Globaliser

I think that there's F on the 388 on every day that it's operating, which is (at present) from 1 December 2018 up to and including 28 March 2019. As far as I could see on a quick search, there are only two days in this period when QF127 is not the 388: it's a 744 on 29 and 30 January 2019.