Just one day after a major telecommunications failure paralyzed air traffic across much of the Northeast, US Transportation Secretary Sean Duffy said the administration will ask Congress for another $30 billion for aviation infrastructure and air traffic control (ATC) modernization. Monday’s outage halted or restricted traffic at multiple large airports, including Newark Liberty International Airport (EWR), New York JFK Airport (JFK), LaGuardia Airport(LGA), and Philadelphia International Airport (PHL), with around 9,500 US flights delayed or canceled and more than 100 diversions.

The disruption follows years of operational pressure in the Northeast, with airlines repeatedly complaining about the effect of ATC constraints on their networks. Calls for greater investment also predate the current program: Delta Air Lines CEO Ed Bastian called for more FAA funding following the nationwide NOTAM outage in January 2023, while Congress subsequently authorized major additional spending on FAA technology, staffing and safety programs.

The latest request comes on top of the $12.5 billion that Congress appropriated in 2025 for the Federal Aviation Administration (FAA) to establish its Brand New Air Traffic Control System (BNATCS). The question now is not whether America’s ATC system needs modernization, but how much completing that modernization will ultimately cost.

The US Wants Another $30 Billion For Aviation Upgrades

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According to Reuters, Duffy’s latest proposal would put roughly $10 billion toward replacing aging ATC towers, another $10 billion toward telecommunications and other ATC technology, and an additional $10 billion toward airport improvements. Added to the $12.5 billion already appropriated, that would represent approximately $42.5 billion of federal investment, although not all of it would be dedicated exclusively to ATC. Of the original $12.5 billion, $9 billion was allocated to systems modernization and $3.5 billion to ATC facilities.

The scale reflects how much equipment needs replacing. FAA plans call for 5,170 high-speed network connections, 27,625 radios, 462 digital voice switches and 612 radars, alongside new surface surveillance and information displays at hundreds of airports and towers. Equipment-related delay minutes in 2025 were approximately 300% higher than the 2010-2024 average, while previous FAA funding debates have repeatedly centered on modern technology and staffing.

The modernization increasingly includes software as well as physical infrastructure. On September 21 — the very day of the Northeast outage — the FAA began limited operation of SMART, an AI-supported platform combining around 200 data streams to predict congestion, weather impacts and capacity constraints before they develop. FAA Administrator Bryan Bedford says that some of the newly requested money would help expand the platform:

“Combining SMART with our ongoing hardware upgrades gives us the tools to cut flight delays, optimize traffic, and keep airspace capacity across the country safe and open.”

Monday’s Northeast Meltdown Shows What The FAA Is Fighting

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Monday provided an unusually visible demonstration of the vulnerabilities of current systems, even with some upgrades already in place. A primary circuit failure occurred at around 9:30 AM at Philadelphia TRACON, the facility responsible for directing traffic around Philadelphia and, through its Area C, Newark and surrounding airports. When controllers switched to the backup, they discovered that a fiber-optic cable in New Jersey had accidentally been severed during construction.

Newark effectively lost commercial arrivals for much of the day, with 34 airports taking diversion flights originally bound for Newark, while disruptions spread through Philadelphia and all three major New York airports. Similar FAA equipment problems have previously caused severe disruption at Newark, including repeated telecommunications failures during 2025.

Duffy says the replacement architecture is specifically intended to remove those single or dual points of failure by giving FAA facilities multiple telecommunications routes. Monday’s disruption was resolved after roughly eight hours, but it forced more than 100 diversions and more than 600 cancellations at Newark alone. Previous ATC outages elsewhere have demonstrated the same problem: even relatively short technical failures can create disruption that persists long after the underlying fault has been repaired.

The good news is that progress is already measurable. Earlier this month, Bedford said the agency had replaced more than 64% of its copper-based telecommunications infrastructure, converted over 403 radio sites, installed 101 surface-awareness systems and moved 21 towers from paper flight strips to electronic displays. Bedford now says obsolete copper telecom wiring should be eliminated by September 2027.

Why $12.5 Billion Was Never Going To Be Enough

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The original appropriation covers only part of the overhaul. The US Government Accountability Office (GAO) says Phase 1 is intended to be completed by December 2028, but FAA estimates Phase 2 will require approximately another $10.2 billion for systems modernization alone, excluding facilities. Phase 2 will introduce new automation systems for tracking aircraft and optimizing traffic, and the FAA has not yet established start or completion dates.

There is also considerable uncertainty around the final bill. GAO found that the FAA has no comprehensive lifecycle cost estimate for BNATCS and no integrated Phase 1 master schedule; instead it is coordinating 11,389 individual project schedules. Meanwhile, the agency points to telecommunications costs alone which have increased from $4.75 billion to nearly $6 billion, illustrating why modernization spending has continued to grow.

Meanwhile, the system is being modernized for considerably more traffic than it handles today. FAA forecasts commercial flights will increase by more than 40% by 2046, alongside growing drone, commercial space and emerging-aircraft operations. Monday showed the consequences when one piece of today’s network fails; Washington’s next challenge is establishing how much replacing that network will cost, and how quickly Congress is prepared to fund it.