AF 8974 then B6 1534 at San Francisco
Salt Lake City → San Francisco → Boston
Timetable, San Francisco time
16:07AF 8974 from Salt Lake City at the gate
22:10B6 1534 to Boston leaves the gatealso EY 8032
6 h 03 apart on the timetable
The last days
AF 8974 and B6 1534 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.