UA 3236 then F9 3068 at Houston
Midland → Houston → Baltimore
Timetable, Houston time
18:30UA 3236 from Midland at the gate
15:39F9 3068 to Baltimore leaves the gate
21 h 09 apart on the timetable, overnight
F9 3068 leaves 21 h 09 after UA 3236 arrives on the timetable: more than half a day, so not a connection we count.