Amsterdam has emerged as Zagreb Airport’s second busiest route and has narrowed the gap on Frankfurt, which has historically been the Croatian capital’s most popular and consistent service. KLM and Croatia Airlines handled a combined total of 232.553 passengers between Zagreb and Amsterdam in 2024, representing a year-on-year increase of 18.2%. The route added 35.741 additional travellers in a single year, surpassing both the Istanbul and Dubrovnik service. The passenger gap between the Frankfurt route, operated by both Lufthansa and Croatia Airlines, and Amsterdam stood at 108.467 in 2023, but narrowed significantly to 61.856 in 2024.

Much of the growth in demand has been generated by KLM, which increased its capacity on the route by 26% year-over-year and is catering to a growing number of transfer passengers on top of the point-to-point demand. During the 2025 summer season, the Dutch carrier has 119.120 seats on the market between Amsterdam and Zagreb, up 15.7% on the previous summer. The airline will continue to maintain double daily flights between the two cities, however, some 56% of services will be operated by the E195-E2 aircraft, 21% with the Boeing 737-700, 14% with the B737-800 and the remainder with the E190. Capacity on the route will grow primarily due to the 132-seat E195-E2, which will double in use compared to the summer of 2024, replacing the smaller E190.

The table below, indicates passenger numbers for most of Zagreb’s scheduled destinations, although not all. The figures in the table account for just over 95% of Zagreb’s total passenger numbers in 2024.