Originally Posted by
RichardInSF
Welcome to Flyertalk, Joodee1214! I find Frankfurt to be one of the least user friendly, most confusing airports I have been to. People are unhelpful and signage is inadequate. Security is often rude and overly humiliating. So prepare for a bad experience and consider yourself fortunate if you don't get it.
That being the case, even if your inbound flight is 90 minutes late, you should still have enough time to make your connection with your proposed schedule.
Note that just because the tickets are different doesn't necessarily mean you cannot check your bags through. If neither airline is a discount carrier, you can probably do that and avoid the need to enter and exit Germany. I would contact your first carrier and ask if they interline to the second.
As somebody who uses Frankfurt every week I consider the post neither as true nor the language as adequate.
People are certainly not generally "unhelpful" and security is neither "rude" nor "often humiliating" - in particular compared to experiences with the TSA.
Signage is not "inadequate" but you have to watch is very carefully since the Frankfurt system of airside transfers is complex due to complex legal structures (EU/non EU, Schengen/non Schengen, clean/not clean). This however avoids the mess you have in other places that you go landslide, switch Terminals landside or whatever.
You need to get accustomed with FRA and it is different from US airports.
Having said this, I would not expect to check my luggage through from DE to Tunis Air and plan for the same amount of time you would plan for eg at JFK.