Viruses cause a variety of human pathogeneses, including respiratory tract infections. However, few antivirals have been licensed for clinical use, and many viruses yet do not possess a viable vaccine. Antiviral drugs are significantly less effective since they are likely to produce drug-resistant mutants, especially when utilizing inhibitors of viral enzymes. In the unavailability of immunizations and standard treatments, it is urgent to identify novel antiviral medications that are both effective and cost-effective. Herbal remedies and purified natural materials are an abundant resource for the development of new antiviral drugs. Several studies have demonstrated the efficacy of herbal extracts as antiviral agents in animal feed or as preventatives and treatments. The identification of these natural agents' antiviral mechanisms has revealed knowledge on their interacts with both the virus life cycle, including viral entrance, multiplication, assembling, and release, as well as virus–host specific interactions. The current article will provide an overview of the antiviral properties of plant-based terpenoids found in a variety of herbal remedies and natural products against various well-known viral respiratory illnesses.