1. 45 min. may be sufficient if you are travelling on one ticket with your luggage checked through. If you have separate tickets and have to pick up checked luggage there is no chance.
Thank you so much man.
I have no laggage. :-D
Why this backtracking and waste of time - there are direct flights Copenhagen-Frankfurt. Any delay on arrival in Oslo and you risk missing flight - but then it is airlines problem to get you on a later flight - assuming through ticket. If not on a through ticket then forget it.
Some search and booking engines give some seriously weird routings inculding overnight, change of airport etc.
On a random date in August there are three direct flights Copenhagen-Frankfurt with Scandinavian Airlines. This will normally be the case on most days.
Afternoon*Edited: 25 July 2014, 10:50