Asia Pacific dominated the ranking for the world’s busiest airport pairs, with Jeju-Seoul (CJU-GMP) the most popular route globally, with 13.2 million passengers flying between the two airports in 2024.
According to iata.org, in the top 10, only one airport pair—Jeddah-Riyadh (JED-RUH) —was not in the Asia Pacific region.

Bogota-Medellin (BOG-MDE) was the busiest route in Latin America with 3.8 million passengers while Cape Town-Johannesburg (CPT-JNB) was Africa’s busiest route, with 3.3 million passengers.
New York John F. Kennedy International Airport-Los Angeles (JFK-LAX) was the busiest route in North America with 2.2 million passengers while Barcelona-Palma de Mallorca (BCN-PMI) was the busiest within Europe with 2 million passengers.