Learn About Domestic Flight ID Requirements

Understanding Valid Forms of Domestic Flight ID

When traveling on domestic flights within the United States, the Transportation Security Administration (TSA) requires passengers 18 years and older to present valid identification at airport security checkpoints. This guide explores the types of identification documents that TSA currently recognizes as acceptable for domestic air travel.

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The most commonly used form of ID for domestic flights is a state-issued driver's license or identification card. All 50 states issue these documents, and they remain the primary form of identification that passengers present. A driver's license includes your photograph, signature, and date of birth—all elements that TSA agents use to verify your identity. State ID cards serve the same purpose for those who do not drive.

A U.S. passport or passport card also works for domestic flights. Many people associate passports only with international travel, but they are fully acceptable for domestic flights as well. A standard passport contains extensive security features and your photograph, making it a reliable form of identification in any situation.

Military identification cards issued by the Department of Defense are recognized by TSA. This includes military ID cards for active duty service members, retirees, and dependents. Veterans with Veterans Health Identification Cards (VHIC) may also use these documents at security checkpoints.

The following documents are also on TSA's acceptable list: Native American tribal identification cards, permanent resident cards (green cards), U.S. territory identification documents, and temporary driver's licenses or identification cards issued by states. Employment identification documents with photographs from federal, state, or local government agencies are acceptable as well.

Practical takeaway: Bring one form of government-issued photo identification when you travel domestically by air. Your state driver's license is typically the easiest option to obtain and carry.

The Real ID Act and Its Connection to Domestic Flying

The Real ID Act was passed by Congress in 2004 and set federal standards for how states must issue driver's licenses and identification cards. This law was created to establish consistent security features across all state-issued documents. While initially intended to apply to all federal purposes, the TSA has implemented a phased approach to enforcement.

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As of May 7, 2025, TSA requires all passengers to present either a Real ID-compliant driver's license or an alternative form of identification for domestic flights. Real ID-compliant documents include security features such as a gold or star symbol on the card and holographic security elements. Not all state-issued IDs meet Real ID standards yet, though the majority of states have now achieved compliance.

If your state driver's license does not display the Real ID indicator (often a gold star in the upper right corner), you can still fly domestically by presenting an alternative form of identification. These alternatives include a valid U.S. passport, passport card, military ID, or other documents listed on the TSA website. You do not need to obtain Real ID-compliant identification to continue flying—you simply need one of the recognized forms.

Each state handles Real ID implementation differently. Some states began issuing Real ID-compliant licenses years ago, while others only recently completed the transition. When you renew your driver's license, you may automatically receive a Real ID-compliant document, or you may need to request one specifically. State DMV websites provide information about whether your current license meets Real ID standards.

The purpose of Real ID is to prevent fraud and strengthen identification verification at federal facilities, including airports. The security features make documents harder to counterfeit and easier for TSA agents to verify quickly during the screening process.

Practical takeaway: Check your state driver's license for a gold star or other Real ID indicator. If your license lacks this symbol, have another acceptable form of ID ready when you fly, or visit your state's DMV to understand your renewal or replacement options.

What TSA Actually Checks at Security Checkpoints

At airport security checkpoints, TSA officers perform a systematic verification process when you present your identification. Understanding what happens during this process can help you prepare for your airport visit and move through security more smoothly.

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TSA officers will examine your identification document to verify that the photograph matches your appearance and that your name matches the name on your airline ticket or reservation. The officer will check that your ID has not expired. An expired ID is generally not acceptable for domestic flights, though TSA officers have some discretion in limited circumstances, such as during state transitions to Real ID compliance.

The officer will also examine your identification for signs of tampering or forgery. Security features on modern IDs—such as holograms, microprinting, and watermarks—help officers quickly identify authentic documents. TSA officers receive training on how to spot fraudulent identification, and they use this expertise during the screening process.

TSA may also verify your information against watchlists and databases to confirm you are cleared to fly. This background check happens digitally and is separate from the physical examination of your ID. The entire process typically takes only a few minutes per passenger.

If there is a discrepancy between your ID and your airline ticket—such as a name mismatch or spelling difference—TSA may ask you additional questions or request that you resolve the issue with your airline before proceeding through security. This is why it's important to ensure your airline reservation uses the exact name that appears on your identification document.

TSA does not have authority to determine whether someone should be allowed to fly based on other factors. That responsibility belongs to the airline. TSA's role is limited to confirming your identity and conducting security screening for weapons or prohibited items.

Practical takeaway: Bring an unexpired form of valid identification, and make sure your airline ticket uses the exact same name as it appears on your ID. If your name has changed, notify your airline before arriving at the airport.

Dealing With Expired, Lost, or Problematic ID

Travelers sometimes arrive at the airport without their identification or discover their ID has expired. While this complicates airport security, it does not automatically prevent you from flying. TSA has procedures for situations where your ID is unavailable or not suitable for verification.

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If you have lost your identification or it is not with you, inform the TSA officer. The officer will ask you a series of questions to verify your identity. These questions typically relate to personal information that would appear on your ID or in government databases—such as your date of birth, address, or other biographical details. If you answer these questions satisfactorily, you may be permitted to proceed through security.

This alternative verification process is not automatic. TSA officers have discretion in determining whether they can sufficiently verify your identity through questions alone. The more information you can provide about yourself, the better your chances of verification. Having your airline confirmation number or boarding pass on your phone can help support your identity claim.

Expired identification presents a different situation than lost identification. Some states have extended the validity of certain IDs due to exceptional circumstances, such as during the COVID-19 pandemic. Generally, TSA prefers current, unexpired identification. However, if your ID expired very recently, TSA officers may use discretion, particularly during the Real ID transition period when some states had delays in issuing compliant documents.

If you know your ID is expired or lost, contact your airline before you arrive at the airport. The airline's customer service team can advise you on what to expect and may have specific guidance based on your situation. Some airlines may require you to have a valid ID to proceed, while others may work with you if TSA can verify your identity through alternative means.

Obtaining a replacement ID varies by state but generally requires visiting your state's Department of Motor Vehicles with proof of identity, proof of residency, and a completed application. Replacement licenses typically arrive within two to four weeks, though some states offer expedited processing for an additional fee.

Practical takeaway: Always carry your current ID when traveling by air. If you have lost your ID, contact your airline before going to the airport to understand your options, and be prepared to answer biographical questions at security if TSA requests it.

Age-Related ID Requirements for Domestic Flights

TSA's identification requirement applies only to passengers 18 years of age and older. Children under 18 do not need to present identification at security checkpoints for domestic flights. An adult traveling with the child may need to verify the child's relationship to them in some circumstances, but the child's ID is not required by TSA.

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When a child under 18 travels without a parent or legal guardian—such as with another family member or through an unaccompanied