So I'm doing series of flights in about two weeks. Keflavík - Copenhagen with Icelandair which is scheduled to land at Kastrup at 12:55. I'll get my luggage and need to check into the next flight which is at 16:15 to Athens with SAS. It was pretty much my only option since I'm meeting a friend at the airport who is landing at a similar time in Athens. SAS and Icelandair do codeshare but for some reason on the day I travel (18th April) the only option was KLM which would arrive the next day. So I decided to do it on two different tickets.How much time is usually needed for something like this? I'm hoping 3 hours is enough, I mean it should be since airlines recommend people to be at the airport 2 hours prior. But what if I suffer big delays at KEF, which I never had in the past but roughly how long of a delay would there have to be for me to miss my SAS connection at CPH?

Flights do seem to be on time on my KEF-CPH flight in most cases so I hope I won't fly on a bad day.

I am moving this thread to the FT Information Desk for clarification and discussion
Obscure2k
TravelBuzz Moderator

The biggest problem is if your incoming flight is delayed and you miss your flight to Athens, it’s most likely you will have to purchase a full walk-up high price fare to go on to Athens. Three hours, in my opinion, is both tight and a good-sized gamble.