In recent years, air travel has become less of a glamorous idea and more of a practical aspect of many people’s lives. Annually, approximately nine billion passengers fly through various global airlines, all for various reasons.
The majority of the world’s busiest international routes now sit in Asia and the Middle East, and most of these journeys are taken up by passengers conducting business across borders. So, which routes saw the most passengers in 2025? Click on to find out.