Originally Posted by allianceflyer9506

if they are in business class then they should have access to United Airlines Polaris Lounge because the Singapore Airlines business class ticket will be seen as another Star Alliance business and first class ticket by the United Airlines Polaris Lounge staff. From the other Threads here This one is about Lufthansa Polaris lounge access Terminal C first and business class. What they can do is check in in Terminal B take the air train to Terminal C then use the air side shuttle from terminal C to Terminal B where Singapore Airlines is departing.