DY 1503 then DK 4901 at Oslo
Prague → Oslo → Copenhagen
Timetable, Oslo time
14:00DY 1503 from Prague at the gate
18:00DK 4901 to Copenhagen leaves the gate
4 h apart on the timetable
The last days
DY 1503 and DK 4901 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.