UA 980 then FR 5151 at Dublin
Chicago → Dublin → Glasgow
Timetable, Dublin time
08:10UA 980 from Chicago at the gate
21:15FR 5151 to Glasgow leaves the gate
13 h 05 apart on the timetable
FR 5151 leaves 13 h 05 after UA 980 arrives on the timetable: more than half a day, so not a connection we count.