By Larry Olmsted

Flights operating nothing but business class have been an elusive treat for frequent fliers over the years. The advantages are simple: only good seats and top shelf service, often at a lower price than business class on traditional multi-cabin aircraft. The problem has been that most of them have gone out of business. Over the years start-ups like EOS and MAXJet disappeared, while another, L’Avion, was purchased by British Airways and turned into its OpenSkies. At the same time several mainstream carriers experimented with all-business class flights including British Airways and Singapore, while Lufthansa is one of the few that chugs on, with several all-business routes out of Germany.

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