Arrivals had risen 2.65% during Oct. 5-12 and 1% during Sept. 28-Oct. 4 after falling for three consecutive weeks.
During Oct. 12-18, overall volumes were down 85% for those crossing via land and 93% through airports, compared to the same time a year ago, the CBSA said.
Canada and the U.S. have agreed to keep the border closed to all non-essential travel until Nov. 21 to slow the spread of Covid-19.
The latest extension of the closure was announced by Public Safety Minister Bill Blair on Monday.
“Our decisions will continue to be based on the best public health advice available to keep Canadians safe,” he tweeted.
The restrictions, first introduced in late March, are not applicable to commercial vehicles.