Air travel visitation fell also fell by nearly 200,000 passengers from October.
International passengers were down 94% last month to just 19,603. In November 2019 that number was 305,000.
In total, some 20m passengers have flown into McCarran through the first 11 months of 2020, down from 47m over the same period a year ago.
The Las Vegas Convention and Visitors Authority has not yet released its November figures, but the decreased air travel suggests Las Vegas could see a drop in tourism last month compared to October.
October saw average daily auto traffic reach 125,000, on pace with the prior month. Totally hotel occupancy for the month was 47% including 64% on weekends.
The drop in air travel was likely a reflection of spiking Covid-19 cases around the country. The Centers for Disease Control and Prevention (CDC) encouraged Americans not to fly over the Thanksgiving holiday.
Las Vegas casinos and hotels were counting on a busy holiday season to fill rooms. The Christmas holiday may have outpaced Thanksgiving in air travel, as the TSA reported that 27 Dec saw the highest number of people screened at airports nationwide since the pandemic, at 1.3m.