Transportation Subway Lianhua Road Station (Line 1) to Shanghai Pudong Airport

Hello! I will return to Germany at Saturday night! I have to be at the airport at 05 a clock in the night! Therefore, I can not use the subway. I have read that the magnev train is not useable in the night! What I have to do now? I think, I could only arrive their by taxi? Or is their another possibility given? When I should take the taxi! What do you think is the cost?

Thank you in advance!