WN 802 then WN 1817 at Denver
Boston → Denver → San Francisco
Timetable, Denver time
12:35WN 802 from Boston at the gate
17:35WN 1817 to San Francisco leaves the gate
5 h apart on the timetable
The last days
WN 802 and WN 1817 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.