The US Department of Transportation and a coalition of aviation industry groups have asked Congress to appropriate $30 billion to modernize the national airspace system, according to a report from FLYING Magazine.

The request represents a significant escalation in the long-running effort to overhaul air traffic control infrastructure, which industry stakeholders have described as aging and increasingly strained by traffic volumes. The $30 billion figure now anchors the industry's collective ask of lawmakers as infrastructure and FAA funding debates continue on Capitol Hill.

DOT's involvement signals that the push for airspace modernization funding has moved beyond trade-association lobbying into the formal policy arena. The department has joined aviation groups in framing the investment as necessary to address the condition of current air traffic control equipment and facilities, some of which date back decades.

The funding request arrives amid heightened congressional attention to aviation system reliability following a series of high-profile air traffic control outages and equipment failures that have disrupted airline operations. Carriers have repeatedly pointed to controller staffing shortfalls and outdated infrastructure as constraints on capacity, particularly in high-demand markets along the East Coast.

For airlines, the stakes are concrete. Air traffic control modernization touches directly on network efficiency, delays, and the industry's ability to add capacity as demand recovers. Equipment failures and radar outages have at times forced ground stops and reroutes, imposing costs that carriers argue compound year after year.

The $30 billion ask aligns with broader industry estimates of what a full modernization of airspace infrastructure requires — a figure that encompasses replacement of aging radar systems, telecommunications upgrades, and facility improvements across the FAA's network of air traffic control centers, towers, and approach facilities.

Congress now faces the decision of whether to fund the request in full, in part, or not at all. Previous infrastructure packages have included FAA funding at lower levels than industry groups sought, and the outcome of the current request will shape the pace of airspace system upgrades for years to come.

The coming months of budget negotiations will determine whether the DOT-backed $30 billion figure survives intact, and with it, the timeline for bringing US airspace infrastructure in line with current and projected traffic demands.