AA 644 then UA 2645 at DFW
Salt Lake City → Dallas-Fort Worth → Newark
Timetable, Dallas-Fort Worth time
10:45AA 644 from Salt Lake City at the gate
14:40UA 2645 to Newark leaves the gate
3 h 55 apart on the timetable
The last days
AA 644 and UA 2645 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.