[Don Corleone]

Northwest Airlines set the standard for arrogance. Delta is not even close.

Didn't they merge?

[Eric in the Ozarks]

Delta bought NWA. Repaited the airplanes and hired most of the Northwest staff.
I flew NWA a couple times a month out of Mpls and had a NWA gold card allowing an upgrade nearly every time I flew.
I flew to Buffalo, Chicago, Detroit and Cleveland, calling on steamship companies.