BA 8341 then UA 1259 at San Francisco
New York JFK → San Francisco → Houston
Timetable, San Francisco time
19:31BA 8341 from New York JFK at the gate
10:53UA 1259 to Houston leaves the gatealso EK 6364, VA 8078, NZ 9197
15 h 22 apart on the timetable, overnight
UA 1259 leaves 15 h 22 after BA 8341 arrives on the timetable: more than half a day, so not a connection we count.