What language do all airline pilots on international flights identify themselves in what language?

While there is no official language required for all international flights, English is the universally recognized and standard language for communication between pilots and air traffic control.

This is due to:

* International agreements: The International Civil Aviation Organization (ICAO) recognizes English as the official language for international aviation.

* Safety: Standardized communication is crucial for preventing misunderstandings and ensuring the safety of passengers and crew.

* Practicality: English is widely spoken and understood across the globe, making it the most practical choice for international communication.

However, it's important to note that:

* Some countries may use their native language for internal communication within their airspace.

* Pilots are expected to have a working knowledge of English to communicate effectively with air traffic control.

Therefore, while English is the dominant language, pilots might also use other languages in specific situations, depending on the location and the individuals involved.