Eleven US Airports, One Customs Threat, and a World Cup on the Clock

A federalism fight that has lived mostly in courtrooms and city halls is being routed, for the first time, through the international arrival halls of America's biggest airports.

The Announcement and What It Actually Threatens

On May 26, 2026, U.S. Homeland Security Secretary Markwayne Mullin told Fox News that the Department of Homeland Security is "drawing up plans" to halt customs and immigration processing at international airports located in so-called sanctuary cities. He framed it as a question, not a policy: "If they're sanctuary cities, should they really be processing customs into their city?"

The mechanism is narrower than the headline suggests, and that is what makes it potent. Under the proposal, U.S. Customs and Border Protection officers would be withdrawn from international arrival halls at airports in cities whose local governments restrict cooperation with federal immigration enforcement. CBP officers are the federal staff who clear passports and customs. Without them, an international flight cannot legally clear passengers or cargo. The terminal can sit there with its lights on, its jet bridges extended, and its arrivals carousel turning, and it still cannot receive a single inbound flight from outside the United States.

The scale of the federal footprint is worth stating plainly. CBP currently operates at more than 300 U.S. ports of entry, including more than 100 airports. The administration argues it can redirect existing federal officers as an executive staffing decision, without new legislation. That argument turns a personnel choice into a physical gate.

The Eleven Airports on the Map

Industry analysts identified eleven U.S. international hub airports as potentially affected: John F. Kennedy, LaGuardia, Newark Liberty, Los Angeles International, San Francisco International, Chicago O'Hare, Chicago Midway, Boston Logan, Seattle-Tacoma, Philadelphia International, and Denver International. That list is not a prediction of which airports will be hit; it is the set whose host cities, or whose host states, appear on the Justice Department's published sanctuary list, alongside the entire state of California, and the cities of Chicago, Los Angeles, New York, Philadelphia, and Seattle.

JFK is the cleanest illustration of the exposure. In 2025, JFK handled more than 34 million international passengers, and more than half of all JFK traffic comes from international arrivals and departures. A customs slowdown at JFK is not a delay layered on top of a domestic operation; it is the operation. The same logic applies, with different proportions, at Newark, LAX, SFO, O'Hare, Boston Logan, and Seattle-Tacoma. These coastal and Great Lakes hubs are where America's long-haul international network actually lives.

Roughly three dozen sanctuary jurisdictions sit on the Justice Department's list, which it published earlier in 2026. The proposal would use that list as the targeting map. The legal precedent is mixed and unresolved: in 2017, federal courts struck down an earlier executive effort to withhold federal funding from sanctuary cities. The airport-staffing version is a different lever and has not been litigated.

The Industry Response and the Cabinet Split

Two days after the Fox News appearance, on May 28, 2026, the trade group Airlines for America put the operational case on the record. "Reducing CBP staffing at major airports would have a devastating effect on the airline and tourism industries, causing a significant operational disruption to carriers, travelers and the flow of international cargo," the group said in a public statement. Its member airlines include American Airlines, United Airlines, and Delta Air Lines, the carriers that operate most U.S.-flagged long-haul service out of the eleven named airports. Their argument is not about politics; it is about capacity. The network simply does not have the slack to reroute widebody traffic away from coastal hubs into airports that were never sized for it.

The U.S. Travel Association went further on the visitor-economy side and confirmed that Secretary Mullin had raised the idea directly in a private meeting with the group before going public on television. "U.S. Travel believes such a move would have devastating consequences for the travel industry and communities that depend on international visitation," the association said.

The most striking pushback came from inside the administration. U.S. Transportation Secretary Sean Duffy disagreed with the proposal at a Congressional hearing, telling lawmakers, "We shouldn't shut down air travel in a state that doesn't agree with our politics." A cabinet secretary contradicting another cabinet secretary on a televised proposal is rare; the public airing tells you the internal disagreement is not narrow.

The Calendar That Sharpens the Threat

What turns a policy debate into an operational emergency is a date already on the calendar. The FIFA World Cup 2026 opens on June 11, 2026, at Estadio Azteca in Mexico City, just sixteen days after Secretary Mullin's televised announcement. The tournament runs through July 19, 2026, and features 48 national teams playing 104 matches across the United States, Canada, and Mexico.

The tournament uses 16 host cities in total. Eleven of them are in the United States: Los Angeles, the New York/New Jersey region, Philadelphia, Boston, Seattle, Miami, Atlanta, Dallas, Houston, Kansas City, and the San Francisco Bay Area. At least five of those U.S. host cities, Los Angeles, New York, Philadelphia, Boston, and Seattle, sit on the Justice Department's sanctuary list. The matches themselves will be played. The question raised by industry groups is whether arriving international fans can be processed through the airports closest to the stadiums, or whether customs slowdowns route them into already crowded midwestern and southern hubs.

The financial scaffolding is large enough to make the question more than rhetorical. FIFA economists project that the tournament will generate $40.9 billion in GDP across North America. In Los Angeles County alone, officials expect 179,000 out-of-town visitors, with a projected average spend of $2,350 per visitor, and a projected economic impact of $594 million from eight matches. The New York/New Jersey region is scheduled to host eight matches at MetLife Stadium. Those numbers do not assume anything about flight cancellations; they assume the visitors arrive.

What Resolves the Standoff

The proposal does not require Congress. The administration's position is that this is an executive staffing decision that can be implemented immediately. The countervailing pressure is operational and economic rather than legislative: a trade group whose carriers cannot reroute long-haul widebodies, a travel association warning about visitor-economy damage, a transportation secretary unwilling to defend the plan in front of Congress, and a sporting event that begins in mid-June.

The 2017 court ruling against the earlier sanctuary-city funding cut is the only legal data point on the board, and it does not directly govern a CBP staffing redirect. That leaves the resolution to the same federalism dispute that produced the standoff, now compressed into the runway between an announcement on May 26 and an opening match on June 11. The aviation infrastructure is the chokepoint. Which side blinks first is the only variable left.

Sources

• Reuters, Airlines and business groups warn of chaos if US restricts international flights (May 28, 2026)
• PBS NewsHour, Travel industry worries after administration reiterates threat to sanctuary city airports
• Fortune, Travel industry, sanctuary city airports, CBP, Mullin
• Simple Flying, 11 US airports facing an international flight ban
• FIFA, 2026 World Cup Socioeconomic Impact Analysis