CURRENTNATIONAL Kuala Lumpur- Changi, Singapore is busiest international route in the world — OAG dataEditor Selangor JournalDecember 21, 2023 by Editor Selangor JournalDecember 21, 2023 LONDON, Dec 21 — OAG, the leading data platform for the global travel industry, today revealed its 2023 Busiest Routes in the world. The analysis...