UA 4207 then AA 727 at Seattle
Seattle → Seattle → Dallas-Fort Worth
Timetable, Seattle time
14:30UA 4207 from Seattle at the gate
17:47AA 727 to Dallas-Fort Worth leaves the gate
3 h 17 apart on the timetable
Seattle’s board gives a departure time for only about 56% of its flights, so many days show no gate time.
The last days
UA 4207 and AA 727 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.