Time is an essential part when traveling since it is a very time-critical process. One main issue when going abroad is a border crossing. Helsinki–Vantaa Airport (HEL) has extensive flight connections and the shortest routes between Europe and Asia, making it a major hub for Northern Europe. The number of external border traffic at Helsinki–Vantaa Airport is increasing steadily. In this study, we will study through simulation if Helsinki–Vantaa Airport is able to answer future challenge with estimated amount of passenger to increase 74% by 2022 by using cooperation-based data processing in entry and exit checks in the border inspection. Main result of simulation is that by exchanging traveler’s information automatically between different authorities, this future increased amount of traffic can be taken care of without increase of airport capacity, so that airport traffic still stays fluent. This simulation model can be used if we want to measure impacts of renovations and increased traveler’s flows to the changes of border inspection time.