Foreign Ownership Restrictions & Cabotage Rules in U.S. Aviation: Key Considerations for Airport Operators
A primer on the statutory and regulatory framework governing airline citizenship and domestic market access
A reference for airport and aviation finance professionals
Prepared by DWU AI · Reviewed by alternative AI · Human review in progress
Scope & Methodology
This article surveys the statutory and regulatory framework governing foreign ownership restrictions on U.S. air carriers and the domestic cabotage prohibition. We examine the two core restrictions under Title 49 USC, key administrative and judicial precedent (Virgin America, Norwegian Air International), Open Skies agreements, and the legislative status quo as of March 2026. We present the requirements, threshold percentages, and enforcement mechanisms, then identify operational intersections with airport finance and tenant management. All citations reference publicly available primary sources (U.S. Code, Federal Register, DOT orders, ICAO conventions) or government-commissioned reports. This article does not constitute legal advice.
Bottom Line Up Front (BLUF)
Foreign ownership: A U.S. air carrier must be a corporation organized under U.S. law, with a U.S. citizen president and at least two-thirds of the board, and U.S. citizens must own and control at least 75% of voting shares and retain "actual control" of the airline. The DOT permits foreign entities to own up to 49% of total equity, provided foreign voting shares do not exceed 25%. The "actual control" test is applied case-by-case and examines governance, decision-making authority, and management history. Cabotage: Foreign civil aircraft are prohibited from transporting passengers or cargo for compensation between two points within the U.S., with narrow exceptions for emergencies. No Open Skies agreement grants cabotage rights to foreign carriers. These rules define the pool of carriers eligible to hold a U.S. air carrier certificate and serve domestic routes, limiting the tenant universe available to airport operators to carriers meeting the citizenship test (49 USC § 40102).
The Two Core Restrictions
Two longstanding provisions of federal law shape which carriers can operate domestic air service in the United States: (1) foreign ownership and control limits on U.S. air carriers, and (2) the cabotage prohibition on foreign civil aircraft. Both originate in the era of the 1944 Convention on International Civil Aviation (the Chicago Convention) and the Air Commerce Act of 1926, and both remain encoded in Title 49 of the U.S. Code. These restrictions define the competitive universe of airlines eligible to serve U.S. airports and, by extension, the tenant pool available to airport operators.
Foreign Ownership: The Statutory Framework
Under 49 USC § 40102(a)(15), a "citizen of the United States"—the prerequisite to holding an air carrier certificate under 49 USC § 41102—is defined as a corporation or association that meets three cumulative requirements:
- Incorporation: organized under the laws of the United States or a state, territory, or possession thereof.
- Management: the president and at least two-thirds of the board of directors and other managing officers are U.S. citizens.
- Ownership and control: at least 75% of the voting interest is owned or controlled by U.S. citizens, and the airline is under the "actual control" of U.S. citizens.
The 75% voting interest requirement has been in federal law since 1938 (originally in the Civil Aeronautics Act). In 1991, the Department of Transportation (DOT) administratively permitted foreign entities to hold up to 49% of a U.S. carrier's total equity, provided the foreign entity holds no more than 25% of voting shares, following the KLM-Northwest Airlines transaction. Transportation Secretary Samuel Skinner announced the relaxed interpretation to facilitate expanded foreign participation in U.S. airline ownership.
The result is a two-tier structure: foreign interests may own up to 49% of total equity and up to 25% of voting equity, but U.S. citizens must retain at least 75% of voting control, two-thirds of management, and "actual control" of the airline.
The "Actual Control" Test
The statutory ownership thresholds alone do not determine citizenship. The DOT applies a separate, qualitative "actual control" analysis—a facts-and-circumstances test examining whether U.S. citizens genuinely direct the airline's affairs. The DOT evaluates equity ownership, business and personal relationships, control over voting rights, veto power, equity/debt agreements, competitive status, and other features of corporate governance.
The Virgin America Precedent
A widely cited modern application of the actual control test is the DOT's review of Virgin America, Inc. (VAI), documented in DOT Order 2007-5-11 (May 18, 2007). In December 2006, the DOT tentatively concluded that Virgin America was not a U.S. citizen, principally because the airline's affairs were "structured so as to give their actual control to a foreign citizen"—Sir Richard Branson's Virgin Group, which had conceived the airline, developed its business plan, ordered aircraft, and assembled its management team.
Virgin America submitted a substantially revised application proposing changes in financial arrangements, management, and corporate governance. After a second review, the DOT issued a final order on May 18, 2007, tentatively finding that Virgin America could qualify as a U.S. citizen subject to conditions including: (a) amending aircraft leases and commercial agreements to restrict the Virgin Group's power over business decisions; (b) replacing the CEO; (c) restructuring the board of directors; and (d) establishing a voting trust to administer the Virgin Group's 25% voting interest. The DOT granted Virgin America its certificate effective August 8, 2007. The case established that the DOT will examine the full history of airline formation—including who conceived the business, ordered aircraft, and assembled management—when evaluating actual control, even where the formal ownership structure satisfies the 75% voting threshold.