What Months Are Flu Season 2024. Since 2022, it has returned to a seasonal pattern, although the flu season has started and peaked a few months earlier than before 2020. Current seasonal flu activity in the united states, information for health providers, in season estimates, and flusight forecasting.
Although flu season in the u.s. In general, flu season in the us lasts from october to as late as may, peaking between december and february.