Porter Airlines is deferring its resumption of flights until June 21 due to ongoing COVID-19 travel restrictions and border closures.
The company was hoping to resume service on May 19.
Officials say they are closely watching developments and stress Porter will be an important part of providing people with travel options as the economy recovers.
The company is preparing to introduce enhanced health and safety measures for its return to service.
In the meantime, Porter is waiving change and cancellation fees on all fares and vacation packages booked between today and June 21.