The federal government may be one policy memo away from shutting down international air travel at some of America’s busiest airports — and the reason has nothing to do with safety or security threats from the sky.
Story Snapshot
- Department of Homeland Security Secretary Markwayne Mullin publicly floated pulling federal customs officials from airports in sanctuary cities, which would effectively end international flight processing at those hubs.
- Airports named as potential targets include JFK, Newark, and Portland — major international gateways handling millions of passengers annually.
- The travel industry is already sounding alarms, with Airlines for America warning the move would have a “devastating effect” on airlines and tourism.
- No final decision has been made, but DHS confirmed the idea is actively under consideration as a leverage tool to force local cooperation with Immigration and Customs Enforcement.
The Mechanic Behind the Threat Is Simpler Than It Sounds
International passengers cannot legally enter the United States without clearing federal customs and border processing. Every arriving international flight requires federally staffed inspection points. Remove those officers and the airport cannot process international arrivals — full stop. That operational reality is exactly what Secretary Mullin is pointing at. The federal government staffs those checkpoints, which means the federal government can, at least in theory, choose where to deploy them and where not to. [2]
Mullin framed the problem plainly during a Fox News interview with Bret Baier: sanctuary cities receive international flights, but once travelers walk out of the airport, local officials refuse to enforce immigration policy. His argument is that the federal government should take a hard look at whether cities unwilling to cooperate with Immigration and Customs Enforcement deserve the full benefit of federally funded customs infrastructure. [3] That is not a complicated position. It is, however, a combustible one.
This Is Not the First Federal Pressure Tactic — Just the Most Visible
The administration did not arrive at this idea in a vacuum. Department of Homeland Security (DHS) had already deployed Border Patrol surges into cities like Chicago and Minneapolis as part of an ongoing campaign to maintain enforcement pressure on sanctuary jurisdictions. [2] The airport customs proposal represents an escalation in both scale and visibility. Previous tactics targeted enforcement operations on the ground. This one targets the economic infrastructure that connects entire cities to the global economy.
The pattern here is well established in immigration politics. Local governments restrict cooperation with federal immigration enforcement. The federal government responds by threatening to pull resources or funding. Industries caught in the middle scream about collateral damage. Courts eventually weigh in. What is different this time is the sheer size of the chokepoint being threatened. JFK, Newark, and similar airports are not regional curiosities — they are critical nodes in global travel and commerce. [2]
The Travel Industry’s Alarm Is Real, But So Is the Enforcement Logic
Airlines for America did not mince words, warning that reducing customs staffing at major airports would have a “devastating effect” on airlines and tourism. [4] Travel executives told NBC News to expect “enormous” economic fallout and widespread chaos. Those warnings deserve to be taken seriously. International travelers connecting through sanctuary-city airports to reach other American destinations would face disruption that has nothing to do with their own city’s immigration policies. That is a legitimate concern about collateral harm.
🚨WOW: All sanctuary city access to international flights could soon be BLOCKED as DHS Sec. Mullin reveals they're "drawing up plans" to do just that.
I voted for this!
Follow: @BoLoudon pic.twitter.com/XKKdiBo4pY
— Bo Loudon (@BoLoudon) May 27, 2026
At the same time, the enforcement logic Mullin is advancing is not frivolous. Sanctuary policies create a documented gap: federal agents process international arrivals at the airport, then local officials decline to assist with enforcement the moment those same individuals step outside. [2] If a city benefits from federal customs infrastructure while actively obstructing federal immigration enforcement, the question of whether that arrangement is sustainable is a fair one. The administration is essentially arguing that federal resources should flow toward jurisdictions that cooperate with federal law — a principle that is hard to dismiss on its face.
What Is Still Missing From This Picture
The honest accounting here requires acknowledging what the record does not yet show. No signed directive, legal memorandum, or implementation order has surfaced publicly. DHS has not identified the specific statutory authority that would allow it to use customs staffing as a coercive sanction against local governments. [1] Airport officials in at least one city said they had received no communication from federal officials about the plan, which raises questions about how far along the operational planning actually is. The strongest version of this story remains a credible threat in active development, not a confirmed policy rollout.
Whether this becomes a genuine enforcement tool or a high-profile negotiating signal, the underlying standoff it represents is not going away. Sanctuary cities have been betting for years that the federal government would not pull levers painful enough to force a policy change. DHS just identified a lever that would be very painful indeed. The next move belongs to the mayors. [3]
Sources:
[1] Web – DHS floats plan to block international flights into sanctuary cities
[2] Web – Could International Travel Be Halted in Sanctuary Cities?
[3] YouTube – DHS secretary threatens to pull customs officials from ‘sanctuary city …
[4] Web – DHS Chief Floats Idea of Closing Air ‘Ports of Entry’ in Sanctuaries