WN 1817 then WN 807 at Phoenix
Tampa → Phoenix → Dallas
Timetable, Phoenix time
09:45WN 1817 from Tampa at the gate
13:15WN 807 to Dallas leaves the gate
3 h 30 apart on the timetable
The last days
WN 1817 and WN 807 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.