WN 574 then AA 1623 at Denver
San Francisco → Denver → Charlotte
Timetable, Denver time
04:05WN 574 from San Francisco at the gate
07:15AA 1623 to Charlotte leaves the gate
3 h 10 apart on the timetable
The last days
WN 574 and AA 1623 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.