My own first trip on The Queen of the Skies was a single sector from PIK to STN on the late, not lamented, Highland Express ( Excuse)

The next was in Cathay Pacific in 1990 from LGW to HKG via BAH and DXB due to tensions pre 1990 Gulf War. The return journey was a series 200 of Thai International from the old BKK to LHR via HEL.
Over the years I’ve had the pleasure of an elderly UA series 100 from IAD to SFO in 1993, a UA series 400 from IAD to LHR in 2005, BA and QF 400s to HKG and then SYD with a SIN-FRA return in 1997, BA again from LHR to MIA in 2008, - the worst ever airport visited in the USA, another BA 400 from LAS to LHR 2017, another MH series 400 from LHR to KUL and return in 1999.
As the years progressed long haul flights were on Mr Boeing’s 777 - in fact Mrs C even watched Apollo 13 on board an early UA flight from IAD to LHR in 1995. 777-200s gave way to 777-300s; a real gentleman’s aircraft the favourite for Mrs C however my own personal favourite is the opposition’s Airbus A350XWB.
The Queen of the Skies May be casting off her crown but it is with distinction, a veteran which revolutionised long haul flying and leaves long lasting fond memories.