First-time visitors to Hong Kong International Airport are often surprised by signs displaying gate numbers up to 530. This topic is frequently discussed on travel and aviation forums, as the number can easily mislead about the airport's actual size.

"I was once changed from gate 70 to a gate in the 400s or 500s. I don't remember the exact number, but I was certainly shocked, thinking I'd have to walk another lap around the airport", shared TenTen.

However, the numbering system here does not follow a continuous sequence. The appearance of numbers greater than 500 does not mean the airport has a corresponding number of gates; the actual total number of gates is far fewer than the highest displayed number.

Signpost for gate 530 at Hong Kong airport. *Photo: House_of_stelryve*

Hong Kong International Airport currently operates 88 passenger gates, comprising 77 aerobridge gates and 11 bus boarding points. The aerobridge gate system is concentrated in number ranges 1-71 and 201-219, while bus boarding gates fall into groups 228-230, 511-513, and 520-524.

"It would be terrible if you actually had to run like Usain Bolt from gate 1 to gate 530 to catch your flight", commented Anthony Bianco, owner of the travel blog The Travel Tart, after discovering the secret behind Hong Kong airport's gate numbering.

The numbering method here is not sequential but based on the location of each terminal area. Gates 1-70 are in the main passenger terminal. Groups from 200 onwards belong to the mid-field concourse, requiring passengers to use an automated people mover. Meanwhile, gates from 500 onwards are designated for remote stand flights.

Skipping many numbers helps passengers quickly identify the relative position of a gate: the higher the number, the further the gate is from the terminal's center. This approach also provides flexibility for the airport to expand or adjust its layout in the future.

Gate layout and passenger flow at Hong Kong International Airport. *Photo: Checkerboard Hill*

Hong Kong International Airport (HKIA) is a major airport located on Chek Lap Kok island in western Hong Kong. HKIA is operated by Airport Authority Hong Kong and operates 24/7, serving as a primary hub for airlines such as Cathay Pacific, HK Express, Hong Kong Airlines, and Air Hong Kong (cargo).

According to data from Airports Council International (ACI), the airport ranked 9th globally for passenger traffic in 2024, handling over 50 million arrivals/departures annually. For cargo, HKIA has consistently held the number 1 position worldwide for many years since 2010.

Hoai Anh (According to Turis, The Travel Tart, Checker Board Hill)