CINCINNATI (AP) -- A cut-down flight schedule at the Cincinnati/Northern Kentucky International Airport is being felt in a variety of ways across the region.

The Cincinnati Enquirer estimates the cuts have cost some 33,000 jobs and $1 billion in annual economic activity. The estimates come from comparisons of a new regional economic impact study with statistics in a 2005 version.

From as many as 673 daily flights, the airport in northern Kentucky now has 170 daily flights. Much of the reduction has come in the schedule of Atlanta-based Delta Air Lines, which had made Cincinnati a major hub. Delta's restructuring under economic pressure led to the end of once-thriving regional carrier Comair last year.

Airport officials say they continue to work on replacing flights. Low-cost carrier Frontier Airlines launches there this month.