American Airlines is dropping flights to 15 U.S. cities in October, when a federal requirement to serve those communities expires.
American said Thursday that it will consider other changes unless the federal government provides more money to the embattled airline industry.
The list of cities with suspended service includes Kalamazoo.
The decision appears designed to put pressure on Congress and the Trump administration to approve another $25 billion in relief for passenger airlines, which have seen traffic plummet during the coronavirus pandemic.
American has already received $5.8 billion and has applied for an additional federal loan of $4.9 billion.