United Airlines is suspending the popular Ottawa – Chicago route for nine months as the company juggles its regional fleet.

“In an effort to best utilize our growing fleet of regional aircraft during the upcoming busy summer travel season,” said United spokesperson Jonathan Guerin in an e-mail, “we are temporarily suspending United Express service between Chicago and Ottawa, effective June 6, 2019.”

United currently offers three daily flights on 50-seat CRJ200 regional jets.

“We plan to resume service in March 2020 and we will continue to serve Ottawa from our hubs in New York/Newark and Washington Dulles” said Guerin. “This change will help ensure we continue to deliver the caring and reliable experience our customers expect when flying United.”

The move leaves Delta’s twice-daily flights to Detroit as the western-most U.S. gateway from the nation’s capital.

This is not the first Canadian cut by United this year. In January, United axed non-stop service from Victoria to San Francisco, citing low demand.