Hello, I have a question about entering Canada by airline. I’m a U.S. citizen that also has permanent residence status in Canada. I lived in Canada from Oct. 2010 to May 2015 and have not been back since. I do contract work for a company in Canada that would like me to move back to Canada and do some training in their office. My PR card is expired and don’t meet the residency requirement for a Permanent Resident Travel Document. I know as a U.S. citizen I can visit Canada without a visa for up to 6 months, but will my expired PR card stop me from entering Canada?