WN 856 then UA 250 at Denver
Dallas → Denver → New Orleans
Timetable, Denver time
08:45WN 856 from Dallas at the gate
13:25UA 250 to New Orleans leaves the gate
4 h 40 apart on the timetable
The last days
WN 856 and UA 250 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.