When flying domestically, the Transportation Security Administration (TSA) requires travelers to present valid identification. While U.S. citizens typically use a state-issued driver’s license or passport, undocumented immigrants may use alternative forms of identification, including:
A valid, unexpired foreign passport
A U.S. Employment Authorization Document (EAD, Form I-766)
Certain state-issued driver’s licenses or identification cards compliant with REAL ID
According to the TSA, these documents are acceptable for domestic travel, but starting May 7, 2025, a REAL ID-compliant license or another acceptable form of ID will be mandatory to board domestic flights (TSA.gov).
Some undocumented travelers in the past have relied on documents issued during immigration proceedings (for example, ICE or CBP documents or the CBP One app). However, new rules have limited their use. As of early 2025, TSA no longer accepts CBP One as valid ID for boarding domestic flights (BeLuminous.org).
It’s important to note that TSA is not an immigration enforcement agency. Their role is to ensure the safety of air travel, not to check immigration status. However, if a traveler’s documents raise questions or cannot be verified, TSA can refer individuals to Customs and Border Protection (CBP) or Immigration and Customs Enforcement (ICE) for further investigation.
This is especially true in airports located near U.S. borders, such as those in San Diego, Miami, or El Paso, where CBP officers often have a greater presence (American Immigration Council). Travelers should be prepared for the possibility of secondary questioning in these locations.
If you are undocumented but need to travel within the United States, consider these guidelines:
✅ Bring valid, unexpired identification
✅ Arrive early to allow time for any potential secondary screening
✅ Remain calm and know your rights if referred to secondary questioning
✅ Avoid airports close to the border if possible, since there is a higher risk of CBP presence
✅ Consider applying for a REAL ID-compliant driver’s license or state ID if you are eligible (for example, if you have DACA, TPS, or other legal presence)
For more travel tips, visit Northwestern University’s Undocumented Student Travel Guide.
Flying while undocumented is not illegal, but it does carry certain risks. Always travel with the best available form of identification, know your rights, and be prepared for the possibility of additional screening or questioning.
If you have questions about your rights as an undocumented traveler or need legal guidance for your immigration situation, contact Lum Law Group today. Our experienced immigration attorneys can help you navigate complex travel and immigration laws and protect your rights.
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