Originally Posted by
hirohito888
I used it while connecting on a LX itinerary, JFK-GVA-FRA. .....
Connections from LX GVA are specifically called out as allowed.
as are
(4) The following passengers
also have access to the Lufthansa Welcome Lounge at Frankfurt Airport:
- Passengers who arrive in Frankfurt via Dusseldorf or Munich after an intercontinental Lufthansa flight (in First or Business Class).
- Passengers who arrive in Frankfurt via Zurich or Geneva after an intercontinental SWISS flight (in First or Business Class).
- Intercontinental routes are flights with the flight numbers LH401-LH799 or from ALG, BEY, CMN, IST, KZN, LCA, TUN, ESB or DME.
Unless someone as experiences that are different, EWR-LHR-FRA on UA Polaris, does not look like it qualifies.