2 hr ago
We will be flying from San Francisco to Istanbul and will have a connection in Frankfurt. Flight from San Francisco is a United Airlines flight and flight from Frankfurt to Istanbul is a Lufthansa flight. So from a Non-Schengen to Non-Schengen flight connection. Seems like United tend to use Gate A20 for Arrival and flight to Istanbul departs from Gate B32. So we need to transfer from A20 to B32. Do we need to take the Transfer Tunnel or Sky Train, which has no control point to save time? Either way do we have to go thru any security or passport control which I doubt but not 100% sure? Does transfer tunnel from Pier A directly connects to B Gates or still have to go thru security check?