Due to their individual developmental and learning needs, adolescents with autism spectrum disorder (ASD) benefit from a variety of educational, medical, and therapeutic services. During the COVID-19 pandemic, these services were discontinued or significantly reduced, which may have resulted in increased difficulties in coping with various areas of life. The purpose of this study was to explore how the pandemic affected the psychosocial and educational functioning of students with ASD. A qualitative, problem-focused interview method was used. The obtained material was subjected to interpretive phenomenological analysis. The study involved 10 secondary school students diagnosed with ASD. The assessment of the effects of the pandemic on the functioning of people with ASD is inconclusive. The respondents noted both negative and positive effects of lockdown. On the positive side, they were able to spend time with their family, isolate themselves from difficult social relationships and feel better. Among the negative effects, adolescents point to difficulties in emotional functioning—increased levels of stress and anxiety, as well as increased feelings of loneliness and difficulties with online education. The study showed the varied experiences of young people with autism during the pandemic, highlighting the significant need to support some of them in terms of their emotional, social and educational functioning.