On Wednesday of this week (July 22nd) the Shannon Airport website showed four Ryanair planes as the only civilian passenger flights to and from the airport. There were probably a few cargo flights also and maybe a few chartered executive jets. All the rest were flights associated with the US military, including one US Air Force executive jet, number 01-0076. It later flew on to Presswick in Scotland and then to US air base in Ramstein in German.
There were at least four Omni Air US troops carriers.