The Trump administration is reportedly drawing up plans to halt international flights into major U.S. “sanctuary cities” in a dramatic escalation of its immigration crackdown, a move that could throw Australian travel plans into chaos.
Homeland Security Secretary Markwayne Mullin confirmed this week that officials were considering blocking customs and immigration processing at airports in cities that refuse to fully cooperate with federal immigration enforcement.
The proposal follows growing anti-ICE protests and clashes between demonstrators and federal agents in places including Newark, New Jersey.
While the plan has not yet been implemented, Mullin said the administration was “drawing up plans” to target sanctuary jurisdictions such as New York, Los Angeles, San Francisco and Chicago – all major international gateways for overseas tourists.
The move is being framed by the White House as retaliation against local governments accused of obstructing immigration enforcement efforts.
Sanctuary cities generally limit cooperation between local police and federal immigration agencies such as ICE.
For Australian travellers, the implications could be enormous.
Los Angeles and San Francisco are among the most popular entry points for Australians visiting the United States, with thousands using the airports as hubs for holidays, business trips and onward connections to Europe and Canada.
Travel experts warn any suspension of customs processing could force airlines to reroute passengers through non-sanctuary cities such as Dallas or Miami, potentially increasing airfares and causing widespread delays.
Industry leaders have already voiced alarm over the proposal, warning it could cripple tourism and disrupt international aviation ahead of the 2026 FIFA World Cup, which is expected to bring millions of overseas visitors into the States.
Critics have also questioned whether the proposal would survive legal challenges. Constitutional experts argue the federal government may not have the authority to effectively punish cities over local immigration policies by shutting down international travel operations.
The controversy comes amid rising tensions across the U.S. over the Trump administration’s hardline immigration agenda, which has triggered protests, legal battles and confrontations between federal agents and activists in several cities.
For now, the proposal remains only a threat. But with planning reportedly underway inside the administration, Australian travellers heading stateside may soon face growing uncertainty over where – and how – they can enter the United States.
