Originally Posted by
akaza1
I arrive BOS-FRA at 510am and connecting with OS to VIE at 820am. I was wondering if I have to wait till 6am to find a LH lounge.
Correct, lounges in 1A open at 06:00.
You'll take a little while to get through passport control, although that early there should be no major queue.
Stretch your legs first? 🤷♂️