Turkish Airlines at London Heathrow Airport. However, it's essential to note that airport facilities and configurations can change over time, and new developments may have occurred since then.
As of my last update, Turkish Airlines primarily operated from Terminal 2: The Queen's Terminal at Heathrow Airport. This terminal is a state-of-the-art facility that serves as a hub for several Star Alliance member airlines, including Turkish Airlines.
To get the most accurate and up-to-date information on the Turkish Airlines Heathrow Terminal, I recommend checking the official website of London Heathrow Airport or Turkish Airlines. These sources will provide the latest details on terminal assignments, flight schedules, and any recent changes in airport infrastructure.
https://airportsterminal.com/turkish-airlines/turkish-airlines-lhr-terminal-heathrow-airport/
