TP 1931 then U2 7645 at Lisbon
Porto → Lisbon → Madrid
Timetable, Lisbon time
17:15TP 1931 from Porto at the gate
18:20U2 7645 to Madrid leaves the gate
1 h 05 apart on the timetable
The last days
TP 1931 and U2 7645 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.