Why do you always board an airplane from its left side?

Have you ever wondered why do you board an airplane from its left side? This common practice is so ingrained in air travel that it rarely raises questions. However, the reason behind this tradition has historical roots that go back centuries, tracing its origins to the maritime practices of the past.

The Maritime Connection: Boarding from the Port Side

The tradition of boarding airplanes from the left side finds its origins in ancient seafaring practices. Historically, the left side of a ship, known as the “port side,” was used for loading and unloading cargo and passengers. This setup was adopted for logistical simplicity and ensured that ships could dock at ports worldwide using standardized equipment and procedures. As Dougie Sharpe, a popular TikTok creator, points out, “The reason we always load and unload planes from the left-hand side of the plane is a carryover from when humanity moved on boats.” By docking uniformly on the port side, ships maintained consistency, making maritime travel more efficient.

The terminology itself reflects this history. The left side of a boat became known as the “port side,” while the right side was called the “starboard.” When aviation emerged, many of these maritime practices were adopted, including the boarding process.

Airport Design and the Evolution of Air Travel

In aviation’s early days, there was no strict standardization of boarding practices, and passengers could board from either side. However, as air travel grew and airports became a crucial part of the travel infrastructure, a need for uniformity in boarding procedures emerged. To maintain consistency across airports worldwide, the industry standardized boarding through the left-hand side of the aircraft.

This standardization was reinforced by airport and aircraft design. The left seat in the cockpit is traditionally where the pilot sits, allowing them to judge distances better and align the aircraft with the gate. Therefore, placing boarding doors on the left side became a practical choice, enabling pilots to easily maneuver the plane during the boarding and deplaning process.

A Blend of Tradition and Practicality

In summary, the practice of airplane boarding from the left side is a blend of historical maritime customs and the practical considerations of modern air travel. By drawing from seafaring traditions and adapting to the needs of aviation, this practice ensures a consistent and smooth boarding experience worldwide.