This paper presents a study aimed at the development of an optimization methodology for multi-event aircraft trajectories. The proposed methodology is an extension of the NOISHHH tool originally developed for the optimization of single-event trajectories. The new optimization framework has been developed to synthesize multi-event area navigation trajectories that minimize the community noise impact in near-airport communities due to the aggregated noise impact on near-airport communities of all inbound and outbound flights on a representative day. The methodology has been applied to nightly inbound flights at a large international airport, revealing a significant improvement of the community noise impact in terms of the number of people highly annoyed due to aircraft noise.