If you look at the way in which they have/will cut international routes all over their network continuously, I doubt there are many profitable LX
First SWISS increased frequencies to some European destinations because they were apparently so very profitable, yet not even 6 months later we hear some of these destinations will be dropped all together?
Same for their long haul flights: they have some problems with their long haul fleet due to the delayed delivery of some of the A340s for the moment, yet even for their self-proclaimed money making routes like Rio etc. they have decided to simply cancel about half of the scheduled flights rather than look for a wet lease or so. If these flights are indeed so fully booked and making so much money as they say they are, why just cancel them?
From the circumstantial evidence, I can only conclude that apart from a handful of intercontinental O&D routes (like the flights to NY for instance) and their core European network (i.e. only biggest European cities) most SWISS routes (I.e. the biggest portion of their more exotic network) are heavily loss making.
One example you can just feel must be loss making even without knowing their exact load factor: LIBREVILLE, GABON. Can somebody explain me why on earth Swiss has/had flights to Libreville in Africa? There are no historical ties between Switzerland and Gabon. The economical relations between the 2 countries are certainly not enough to generate sufficient O&D traffic, it is/was their only central African destination which makes it impossible to establish yourself on the transfer market, SWISS never had any reputation whatsoever in Africa as SN
have etc .etc. If Libreville is not already dropped, it should most certainly be to streamline the network and to allow them to enter an alliance.