UA 345 then DL 9773 at San Francisco
Las Vegas → San Francisco → New York JFK
Timetable, San Francisco time
19:58UA 345 from Las Vegas at the gatealso AC 3110, NZ 9241
06:30DL 9773 to New York JFK leaves the gate
10 h 32 apart on the timetable, overnight
The last days
UA 345 and DL 9773 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.