In a highly interconnected world with extensive air passenger traffic, emerging pathogens can be spread across the world within a few days. The rapid worldwide dissemination of SARS-CoV-2 revealed that international air travel played a key role in introducing new pathogens or their variants to previously unaffected regions. Wastewater surveillance was implemented in Canada in 2021 to monitor SARS-CoV-2 as well as other pathogens at the community level. This policy recommends routine collection of aircraft and terminal wastewater samples to monitor the level of various infectious disease agents as well as antimicrobial resistant bacterial pathogens that pose a significant threat to global public health. Studies have shown that the detection of new variants of SARS-CoV-2 in airport wastewater preceded their detection in the local water treatment plant station by approximately two weeks. This policy recommends launching a surveillance of aircraft and airport terminals as the earliest alert system, provide complementary data on dynamics of introduced pathogens, and share potential determinations regarding outbreak origin. This can ultimately be used to inform public health response and timely implementation of corresponding policies to protect Canadians from the raising public health challenges.