"After ten years of construction, 19 million passengers will soon be able to take off or land here every year: according to plans, the third terminal at Frankfurt Airport will open in April 2026.
Fraport CEO Stefan Schulte announced the date for the opening of Terminal 3 (T3) on Wednesday in Frankfurt. “The first flight will take off on April 23,” said Schulte.
Gates G, H, and J offer a total capacity of 19 million passengers. It can be expanded to accommodate up to 25 million passengers and would be about as large as Germany's fourth-largest airport in Düsseldorf. ...
All airlines operating out of Terminal 2 (T2) that do not belong to Lufthansa and Star Alliance will move to T3. According to Fraport CEO Schulte, this involves a total of 57 airlines, which will move in four waves. T2 will then be renovated from the ground up until the early 2030s."
Translated with DeepL.com (free version)
Source: https://www.tagesschau.de/inland/regional/hessen/frankfurt-flughafen-terminal-drei-100.html