IB 344 then UX 87 at Madrid
Chicago → Madrid → Santo Domingo
Timetable, Madrid time
09:55IB 344 from Chicago at the gate
16:10UX 87 to Santo Domingo leaves the gate
6 h 15 apart on the timetable
The last days
IB 344 and UX 87 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.