The falcons were founded in 1966 and have never won a Super Bowl.
While the Cardinals, Lions, Titans, Chargers, Browns, Bills and Vikings are older and have never won a Super Bowl, all won at least one AFL or NFL title before the 1970 AFL-NFL merger.
Congrats Falcons!
You know I get that it’s by technicality but I’m still gonna act like it’s the Vikings. They got there’s pre-merger but still Super Bowl era. They were functionally NFC champs and the Chiefs were the real champions of the 69 season.