Hi
Sorry to hear about your recent loss - my father passed away a few months ago too so I know how traumatic it is
I've just tapped the flight number into Flight Aware - Sunday's flight was a 747. It's not listing any other flights than that one, so there's no history - at a guess however I'd say a 747! No doubt someone else with access to more relevant data will come and provide it
Hope you enjoy your holiday when it comes