EK 6012 then BA 7545 at San Francisco
Houston → San Francisco → Seattle
Timetable, San Francisco time
20:03EK 6012 from Houston at the gate
20:58BA 7545 to Seattle leaves the gate
55 min apart on the timetable
The last days
EK 6012 and BA 7545 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.