What happened
On July 31, 2026, Advocasí posted a short asking whether ICE can detain you at an airport. Its description said that recent reports indicate ICE has increased operations at some U.S. airports and that some people with pending immigration cases were detained while traveling. Those are news reports. We looked for a DHS, ICE or TSA page that announces or describes an airport enforcement program and did not find one. So this piece sets the headlines aside and lays out what the statute, the regulation and the agencies' own pages say about who can question or arrest whom, and where.
The clearest authority is on the international side. CBP's own "Search Authority" page says: "Unless exempt by diplomatic status, all persons entering the United States, including U.S. citizens, are subject to examination and search by CBP officers." It points to 19 CFR 162.6, which says that "All persons, baggage and merchandise arriving in the Customs territory of the United States from places outside thereof are liable to inspection." The statute behind it, 8 U.S.C. 1225(a)(3), says that all non-citizens "who are applicants for admission or otherwise seeking admission or readmission to or transit through the United States shall be inspected by immigration officers." That is the customs and immigration hall after a flight from abroad. It is a port of entry, and the rules there are not the rules for the rest of the building.
A domestic terminal is not a port of entry. There, immigration officers have the same authority they have anywhere else in the country, written in 8 U.S.C. 1357(a). Without a warrant, an officer may "interrogate any alien or person believed to be an alien as to his right to be or to remain in the United States," and may "arrest any alien in the United States, if he has reason to believe that the alien so arrested is in the United States in violation of any such law or regulation and is likely to escape before a warrant can be obtained for his arrest." The regulation that governs how that is done, 8 CFR 287.8, adds three limits in its own words: an officer "has the right to ask questions of anyone as long as the immigration officer does not restrain the freedom of an individual, not under arrest, to walk away"; a brief detention for questioning requires "a reasonable suspicion, based on specific articulable facts"; and "A warrant of arrest shall be obtained except when the designated immigration officer has reason to believe that the person is likely to escape before a warrant can be obtained."
One court decision from this summer is often mentioned alongside the airport stories. On June 23, 2026, the U.S. Court of Appeals for the D.C. Circuit decided Make the Road New York v. Mullin, No. 25-5320. A DHS notice published January 24, 2025 (90 FR 8139) had designated for expedited removal people "who are apprehended anywhere in the United States more than 100 air miles from a U.S. international land border, and who have been continuously present in the United States for less than two years," under 8 U.S.C. 1225(b)(1)(A)(iii). A district court had stayed that designation. The appeals court wrote: "Because it does not, we vacate the stay," referring to the district court's finding that the expansion likely violated due process. Judge Wilkins concurred in part and dissented in part. The opinion also states who the statute leaves out: "Any aliens admitted or paroled are excluded, even if they are here illegally. So too is anyone who can prove he has lived here — legally or illegally — for at least two straight years." The word "airport" does not appear in the opinion.
Who this is about
At international arrivals, CBP's page is about everyone who enters the country, including U.S. citizens. In a domestic terminal, the statute speaks of "any alien or person believed to be an alien," and the regulation speaks of any person an officer questions. Neither text is written as a program for airports, and neither mentions people with a pending application at USCIS, a pending extension, or a pending green card case. The D.C. Circuit decision is about whether the 2025 expedited-removal designation can take effect; it says nothing about where people are encountered.
What the sources do not say matters here. No ICE, CBP or DHS page we found says ICE is running operations at airports, names which airports, or describes how travelers are selected. TSA's own identification page lists a permanent resident card, a foreign government-issued passport and the USCIS Employment Authorization Card (I-766) among the documents it accepts at a checkpoint, and says nothing about checking immigration status. The 2008 Secure Flight rule that governs what airlines send TSA says the data is collected "for watch list matching purposes" and that TSA "may notify another Federal agency" to respond to a potential watch list match; it does not mention ICE or immigration enforcement. On the record from Congress, a July 17, 2026 press release from Senator Jacky Rosen describes an incident at Harry Reid International Airport in Las Vegas and questions to the TSA nominee about "TSA's information sharing agreement with Immigration and Customs Enforcement (ICE)." That is a senator's statement, not an agency's, and the agreement itself has not been published on an agency site.
What it does not mean
- It does not mean every airport is a border. CBP's inspection authority is written for people "arriving in the Customs territory of the United States from places outside thereof." A domestic gate is covered by the general rules in 8 U.S.C. 1357 and 8 CFR 287.8, not by the port-of-entry rule.
- It does not mean a pending application appears anywhere in these texts. None of the documents we read says that a pending USCIS case protects a traveler, or exposes one. What a pending case means for a particular person is a question about that person's own file.
- It does not mean the D.C. Circuit ruled on airports. The June 23 opinion is about the 2025 expedited-removal designation and due process. It does not mention airports, travel or TSA.
- It does not mean TSA screening is an immigration check, according to TSA's own pages. TSA's identification page lists which documents it accepts and says nothing about status; the Secure Flight rule describes watch list matching. Whether other arrangements exist is a question agencies have been asked and have not answered on a public page.
What to do with this
If you or someone you know has a pending case and is unsure what travel inside the country means for that case, the person to ask is a licensed immigration attorney or a DOJ-accredited representative at a recognized nonprofit. They can look at the actual file, which no article can do. The organizations below are a place to start.
Advocasí is not a law firm. We explain what a policy says and help people prepare their own paperwork once a qualified advisor has told them which path applies.