The Factors That Set The Boeing 777-300ER Apart From The Standard 777-300

The largest commercially operational variants of the Boeing 777 family are the 777-300 and the 777-300ER. Before it launched the 777X (currently touted to enter service in 2025), the 777-300 and its extended-range variant were the largest twinjet passenger aircraft that Boeing offered to airlines. Let’s take a closer look at the two variants to determine the differences.