Canadian officials said details of a plan to take in 25,000 Syrian refugees by year's end would be announced Tuesday.
The Canadian media reports come amid fears that IS jihadists could slip into the country posing as refugees, in the wake of last week's attacks in Paris that killed at least 130 people.
Citing a leaked document, local media said the government was planning to fly in 900 Syrian refugees daily from Jordan to Montreal and Toronto, starting December 1.
The cost and other details will be revealed on Tuesday, Immigration Minister John McCallum told reporters in Ottawa.
Health Minister Jane Philpott, however, said the leaked information was "outdated and not expected to be accurate."
At a security forum in the Atlantic port city of Halifax, Defense Minister Jarjit Sajjan said by welcoming Syrian refugees, Ottawa was also striking at IS.
"This crisis is not just about a humanitarian project," he said in his opening remarks to military commanders and defense ministers from around the world.
"By doing our part for this, we are actually hitting ISIS in a different way as well."
Sajjan also sought to allay security concerns raised since the Paris attacks, saying Canada is looking to bring over the most vulnerable and families with skills that could ultimately benefit Canada, and that they pose no threat to national security.
"They're not fleeing poverty; they're fleeing war," he said. "People who are settling are going to be contributing to our economy.