Kuala Lumpur to Singapore Is The Busiest International Flight Route of 2023

Travel intelligence company OAG has released its annual listing of the world’s busiest international flight routes and Kuala Lumpur to Singapore flew the most.

The Busiest Flight Routes of 2023 analyses data from January to December 2023, to provide an overview of flight route performance and trends. 

The data is based purely on the number of seats sold on flights throughout 2023. The route between Kuala Lumpur (KUL) to Singapore Changi (SIN) came up on top with 4.9 million seats this year.

Prior to the pandemic, the route averaged 82 daily flights. In recent times, that number has dropped to around 36 flights a day. The flight lasts just over one hour and is also the shortest international flight in the world.

Hong Kong (HKG) to Taipei (TPE) was the busiest international flight route in 2019, but has dropped to the third place this year.

The 10 busiest international flight routes in the world according to the year 2023 data are:

1. Kuala Lumpur (KUL) – Singapore Changi (SIN): 4.9 million seats
2. Cairo (CAI) – Jeddah (JED): 4.8 million seats
3. Hong Kong (HKG) – Taipei (TPE): 4.6 million seats
4. Seoul Incheon (ICN) – Osaka Kansai (KIX): 4.2 million seats
5. Seoul Incheon (ICN) – Tokyo Narita (NRT): 4.1 million seats
6. Dubai (DXB) – Riyadh (RUH): 3.9 million seats
7. Jakarta (CGK) – Singapore Changi (SIN): 3.9 million seats
8. New York JFK (JFK) – London Heathrow (LHR): 3.8 million seats
9. Bangkok (BKK) – Singapore Changi (SIN): 3.4 million seats
10. Bangkok (BKK) – Seoul Incheon (ICN): 3.3 million seats