Yes, I believe that the English language is the most widespread language in the world. It is considered to be native for 500 million people in 12 coutries worldwide. Also, 1 milliard are using this language as a second language. In this way, aproximately a huge amount of human beings are speaking English. Moreover, this language is being used in media, news and information. English is the language of travelling and connection on international airlines.
In all international(global, universal) airports, pilots and trafic controllers should have a good comprehension of English.