I love comedy. I like some of the jokes in Airplane. I think most of the jokes are dated and the movie hasn't aged well.
Shirley you can't be serious? The word play and visual comedy in the movie is classic. The Roger/Clarance/Ouver take-off sequence, Leslie Neilsens deadpan "Dinner was the chicken or the fish? - yes I remember, I had the lasagne", the guy waiting in the taxi, "everything is ok" as the pilots are dragged down the corridor, Stiker being stationed outside of Drambuie. Hell I think Airplane has the first dramatic double-sunglassed removal.
There is so much clean, zany humour in that movie - the idea that you can claim classic, surrealist comedy is dated makes me question whether you believe that statement at all.