World's Busiest International Air Routes by Seats (2024)

About This Dataset

This chart ranks the world's busiest international air routes in 2024 by the number of airline seats scheduled, using data from aviation analytics firm OAG. Seat capacity measures how much airline supply is dedicated to each city pair. The busiest international routes are concentrated in Asia, reflecting the region's dense network of short-haul cross-border connections.

✨ AI Insight

Hong Kong-Taipei is the world's busiest international route by a wide margin, with 6.78 million seats, over 1.3 million more than second-placed Cairo-Jeddah (5.47M). Asia-Pacific dominates the ranking, accounting for eight of the ten routes, most of them short cross-border hops between major regional hubs such as Kuala Lumpur-Singapore (5.38M) and the two Seoul-Japan routes to Tokyo and Osaka. The Middle East contributes Cairo-Jeddah, heavily driven by pilgrimage and labour travel, and Dubai-Riyadh (4.31M). Strikingly, only one long-haul intercontinental route makes the list: New York JFK-London Heathrow (4.01M), the sole transatlantic entry and one of the busiest premium business routes in the world. The data underlines how international capacity is dominated by short, high-frequency regional corridors rather than long-haul flying.

Source: OAG

Key Findings

Auto-computed highlights from this dataset

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Hong Kong - Taipei leads with 7 in 2024.

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Average value in 2024: 5 · median: 5.

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Gap in 2024: Hong Kong - Taipei is 1.7× larger than New York JFK - London Heathrow.