The second series of On the Buses originally aired between 31 May 1969 and 5 July 1969, beginning with "Family Flu".

The series was produced and directed by Stuart Allen, and the designer was Andrew Gardner.

(with the exception of seven episodes in Series 4 due to the ITV Colour Strike) When Olive and Mum catch the flu, Stan and Arthur are forced to do all the housekeeping.

Stan takes the clothes to the launderette while on duty, which lands him in further trouble when Inspector Blake finds the bag.

After they recover, Olive, Arthur and Mum decide to visit Aunt Maud and once they've left, Stan catches the flu.