F9 3067 then UA 3986 at Houston
Baltimore → Houston → Des Moines
Timetable, Houston time
20:19F9 3067 from Baltimore at the gate
20:05UA 3986 to Des Moines leaves the gate
23 h 46 apart on the timetable, overnight
UA 3986 leaves 23 h 46 after F9 3067 arrives on the timetable: more than half a day, so not a connection we count.