Airport Security Costs & TSA Reimbursement
Aviation security at U.S. commercial airports operates through a cost-sharing structure: the Transportation Security Administration (TSA) funds passenger screening operations ($11.5 billion total FY 2026 appropriation), but airport operators bear costs for law enforcement officer (LEO) presence, physical security infrastructure, and certain checkpoint support functions. The September 11 Security Fee—collected from air carriers and remitted to TSA—is the primary funding source ($5.60 per one-way trip since 2014), but a portion is diverted to the Treasury General Fund for deficit reduction. The FY 2026 appropriations bill expands federal airport security capital funding: the Aviation Security Capital Fund (ASCF) doubles from $250 million to $500 million annually, and a new Aviation Security Checkpoint Technology Fund allocates $250 million to checkpoint technology and biometrics. Airports that lose appropriations for LEO reimbursement or exit-lane staffing must absorb those costs within operating budgets or terminal rates. This article maps each cost category, current reimbursement status, and financial planning considerations.
2026-03-10 — S343 Deep edit: Perplexity gate violations fixed (Rule 2: 3 violations — FAA data added FY2025 vintage date; "mid-2025" → "June 2025" with TSA SPP Roster source; FAA Reauthorization Act citation added). No AI-isms or Rule 1/3/4/5 violations detected. Rule 7 sources require verification by subject-matter editor for TSA administrator name, Trump budget figures, SPP IDIQ contract details, and appropriations act Public Law numbers.
2026-03-06 — Initial publication
2026-03-09 — Pass 2 Rule 9 compliance: rewrote 2 unanchored qualifiers with dates/sources, specified 1 industry association, added TSA testimony source for exit-lane staffing figure, removed 2 AI-ism phrases.
Overview
Aviation security at U.S. commercial airports operates through a cost-sharing structure involving the Transportation Security Administration (TSA), airport operators, air carriers, and passengers. TSA, created by the Aviation and Transportation Security Act of 2001 (ATSA, Pub. L. 107-71), is the federal agency responsible for screening passengers and property at airports under 49 U.S.C. § 44901. Airport operators, in turn, bear costs for law enforcement, physical security infrastructure, access control, and certain checkpoint support functions under 49 U.S.C. § 44903.
The boundaries of this cost-sharing arrangement have shifted over the past two decades through congressional appropriations decisions (e.g., FY 2024 Act, Bipartisan Budget Act of 2013), fee restructurings, and documented attempts to transfer costs from the federal budget to local airport operators (e.g., Trump Administration FY 2026 budget proposals for exit-lane staffing and LEO program restructuring).
The September 11 Security Fee
The primary funding mechanism for TSA operations is the September 11 Security Fee, authorized under 49 U.S.C. § 44940. Air carriers collect the fee from passengers at the time of ticket purchase and remit it to TSA.
The fee has been restructured once since inception:
| Period | Fee Structure | Statutory Authority |
|---|---|---|
| February 1, 2002 – July 20, 2014 | $2.50 per enplanement, maximum $5.00 per one-way trip, $10.00 round trip | ATSA § 118 (Pub. L. 107-71) |
| July 21, 2014 – present | $5.60 per one-way trip, $11.20 round trip (flat fee regardless of connections) | Bipartisan Budget Act of 2013 (Pub. L. 113-67) |
Fee Diversion
The Bipartisan Budget Act of 2013 both raised the fee and directed that a portion of security fee revenue be deposited into the Treasury's General Fund for deficit reduction rather than funding TSA operations. The annual diversion amount is set through the appropriations process. In FY 2023, total security fee collections reached approximately $4.6 billion, of which approximately $1.6 billion was diverted to the General Fund. The FY 2024 DHS Appropriations Act reduced the diversion amount to $760 million and returned $800 million to TSA.
Aviation Security Infrastructure Fee (ASIF) — Repealed
A separate fee, the Aviation Security Infrastructure Fee (ASIF), was imposed on air carriers based on each carrier's calendar year 2000 screening costs. The Bipartisan Budget Act of 2013 repealed the ASIF effective October 1, 2014. TSA published a final rule confirming cessation on September 23, 2014.
TSA Budget and Screening Operations
The FY 2026 DHS appropriations bill, released January 20, 2026, provides $11.5 billion in total appropriations for TSA. After factoring out user fee offsets, the net appropriation is $8 billion.
Key line items in the House version of the FY 2026 bill:
| Line Item | FY 2026 Amount |
|---|---|
| Frontline screening workforce | $5.533 billion |
| Computed Tomography (CT) checkpoint baggage systems (CPSS) | $300 million |
| Law Enforcement Officer (LEO) Reimbursement Program | $45.9 million |
The Trump Administration's FY 2026 budget request proposed reducing TSA funding by $247 million relative to FY 2025 levels, including the elimination of approximately 2,600 TSA positions. TSA Acting Administrator Ha Nguyen McNeill testified before the House Appropriations Committee on May 20, 2025, that approximately 1,300 of these positions were exit-lane staffing positions at 99 airports. The final bipartisan FY 2026 bill rejected those proposed reductions and restored funding for exit lane staffing, LEO reimbursement, and the canine program.