TP 243 then UA 8130 at O'Hare
Lisbon → Chicago → Madison
Timetable, Chicago time
15:30TP 243 from Lisbon at the gate
19:59UA 8130 to Madison leaves the gate
4 h 29 apart on the timetable
The last days
TP 243 and UA 8130 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.