WN 579 then UA 1552 at Phoenix
Baltimore → Phoenix → Chicago O'Hare
Timetable, Phoenix time
13:25WN 579 from Baltimore at the gate
15:37UA 1552 to Chicago O'Hare leaves the gate
2 h 12 apart on the timetable
The last days
WN 579 and UA 1552 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.