Environment Canada is warning there's a 30 per cent chance the cloud will affect airspace over St. John's and two other cities in Newfoundland and Labrador.
Airport spokeswoman Marie Manning said nine of 13 flights to destinations in Canada and the United States out of St. John's Monday morning have been cancelled, and flights later in the day are in a "wait and see" period. She added that they're waiting for updates from Environment Canada and Transport Canada to determine the extent of the ash cloud's effect on the airport.
"The volcanic ash is spreading westward," Angela Mah, an Air Canada spokeswoman, said Sunday evening, adding that the airline has been told the ash cloud will disrupt flights in St. John's, Gander and Deer Lake.
The volcanic ash is spreading westward. Angela Mah, an Air Canada spokeswoman
Passengers travelling to and from those airports on Monday have been warned their flights may be cancelled or delayed, although it's not clear yet how many passengers or flights are affected.
Ms. Mah said affected passengers can change their travel plans without penalty.
A Transport Canada spokeswoman said they're continuing to monitor the situation along with Environment Canada and Nav Canada.
"The department will update travellers and airlines as the situation develops."
Several Juno events have already been affected by bad weather, with several acts stranded in Halifax Friday night thanks to fog.
The cloud of ash from Icelandic volcano Eyjafjallajokull has already wreaked havoc on travel to and from Europe -- stranding travellers and products making their way in and out of the continent.