FR 97 then EI 119 at Dublin
Prague → Dublin → Washington
Timetable, Dublin time
19:25FR 97 from Prague at the gate
15:50EI 119 to Washington leaves the gate
20 h 25 apart on the timetable, overnight
EI 119 leaves 20 h 25 after FR 97 arrives on the timetable: more than half a day, so not a connection we count.