DL 2099 then UA 2144 at Houston
New York LaGuardia → Houston → Jacksonville
Timetable, Houston time
13:37DL 2099 from New York LaGuardia at the gate
13:14UA 2144 to Jacksonville leaves the gate
23 h 37 apart on the timetable, overnight
UA 2144 leaves 23 h 37 after DL 2099 arrives on the timetable: more than half a day, so not a connection we count.