Background Head and neck cancers (HNC) have poor survival prognosis, as tumors are often diagnosed at advanced stages in patients consulting late. The first lockdown linked to the 1st wave of COVID-19 (Coronavirus Disease 2019) disrupted consultation schedules in France. Objective The principal aim of the present study was to analyze consultation wait time in HNC during and after lockdown, in our university expert oncology reference center, to disclose any increase in treatment wait time. Methods A single-center retrospective study included patients with a first diagnosis of HNC. Three groups were distinguished: “lockdown”, “post-lockdown”, and a “control” group (corresponding to a reference period 1 year earlier). Intervals between first oncologic consultation and multidisciplinary tumor board (FC-MTB) and between MTB and first treatment (MTB-T) were assessed. Results One hundred and seven patients were included in the control group, 60 in the lockdown group and 74 in the post-lockdown group. There was no increase in median FC-MTB interval (respectively 35, 29 and 28 days) between the lockdown and post-lockdown groups compared to the control group (respectively P = 0.2298 and P = 0.0153). Likewise, there was no increase in MTB-T interval (27, 20 and 26 days respectively) (P = 0.4203). Conclusion No increase in wait times was observed during the lockdown and post-lockdown periods in our center.