Originally Posted by PV_Premier

as Kacee mentions, LH does fly SFO-MUC, but IIRC it's on the old slanty-flat J seat A340. if you can get LAX-FRA, that's the way to go...with SEA-FRA being a very reasonable alternative.

MUC is "easier" to transit, but if you can get an upgrade on LH from LAX-FRA on your desired date of travel, i'd definitely take it versus going SFO-ORD-MUC. the MUC *G lounge is also very nice IMHO.

much is made on FT about how bad it is to transit FRA. i've never had any huge issues there (including navigating separate tickets from LH to DL on a 3 hour "connection"), though the UA boarding process there is even more of an enormous charlie foxtrot than anywhere else, IMO. the FRA airport app for iPhone is abundantly useful.