If you only travel domestically, a REAL ID driver's license or a passport card are practical choices. If you fly internationally, you must have a passport book.
A REAL ID-compliant driver’s license, a U.S. passport card, and a U.S. passport book can all be used at TSA checkpoints for domestic flights. They do not provide the same travel privileges, however.
Table of Contents
- REAL ID, passport card, and passport book comparison
- What a REAL ID does
- What a passport card does
- What a passport book does
- Which travel ID should you choose?
- Costs, applications, and processing times
- What if you arrive at the airport without acceptable ID?
- Travel ID FAQs
REAL ID vs. Passport Card vs. Passport Book
| Feature | REAL ID | Passport card | Passport book |
|---|---|---|---|
| Issued by | A state motor vehicle or identification agency | U.S. Department of State | U.S. Department of State |
| Domestic flights | Yes | Yes | Yes |
| Driving privileges | Yes, if it is a driver’s license; no, if it is a state identification card | No | No |
| International air travel | No | No | Yes |
| Canada and Mexico by land | No, unless it is also an Enhanced Driver’s License | Yes | Yes |
| Qualifying land and sea travel | Not by itself | Canada, Mexico, Bermuda, and some Caribbean destinations | International travel by air, land, and sea |
| Proof of U.S. citizenship | Not necessarily | Yes | Yes |
| Adult validity | Varies by state | 10 years | 10 years |
| First-time adult cost | Varies by state | $65 total | $165 total |
| Adult renewal cost | Varies by state | $30 | $130 |
| Best fit | Driving and domestic identification | Wallet-sized citizenship ID and limited border travel | International travel and maximum flexibility |
The first-time passport totals include the separate $35 acceptance fee. Applying for an adult passport book and card together costs $195, while renewing both costs $160. See the current passport fees before applying.
Review the government eligibility rules before seeking urgent service. Travelers who qualify may apply at a regional passport agency, and a private courier may help with agency-submission logistics.
What a REAL ID Does
A REAL ID is not a separate national identification card. It is a state-issued driver’s license or identification card that meets federal security standards.
REAL ID enforcement began on May 7, 2025. Adults age 18 and older now need a REAL ID-compliant state ID or another form of identification accepted by TSA to pass through airport security for a domestic flight. REAL ID is also used for identification at certain federal facilities and federally controlled locations.
TSA does not require children under 18 to provide identification when traveling with a companion within the U.S., but minors must carry a valid child passport for international flights.
A REAL ID driver’s license may be the most convenient option for someone who drives because it combines driving privileges with federally compliant identification. A REAL ID state identification card provides identification but does not authorize the holder to drive.
REAL ID and Enhanced Driver’s License are not interchangeable terms.
An Enhanced Driver’s License may be accepted for certain land and sea border crossings. A standard REAL ID-compliant license does not provide international travel privileges.
What a Passport Card Does
The U.S. passport card is a wallet-sized document issued by the Department of State. It is proof of U.S. citizenship and identity and can be used instead of a REAL ID at TSA checkpoints for domestic flights.
The card is designed for U.S. citizens entering the United States by land or sea from Canada, Mexico, Bermuda, and qualifying Caribbean destinations. It is not valid for international air travel, including flights to Canada or Mexico.
The card can be useful for travelers who:
- Cross the Canadian or Mexican border by land.
- Want a wallet-sized backup form of federal identification.
- Do not drive but need an acceptable ID for domestic flights.
- Want a second document that proves U.S. citizenship.
Travelers considering a cruise should check the cruise line and every port of call. The passport card may work for some itineraries, but a passport book provides an international air-travel option if an emergency requires flying home. Review our cruise passport guide.
What a Passport Book Does
A passport book is the only one of these three documents that permits international air travel. It can also be used for domestic flights and international travel by land or sea.
The passport book provides the broadest travel flexibility, but it does not replace a driver’s license. Someone who drives still needs a valid state license, whether or not it is REAL ID compliant.
A passport book is usually the better choice when:
- You plan to fly internationally.
- You want the ability to return to the United States by air during a cruise or overland emergency.
- Your future travel plans are uncertain.
- You want one travel document that works for international air, land, and sea travel.
Eligible adults can renew a passport book, passport card, or both online or by mail. Online renewal is available only for routine service.
Which Travel ID Should You Choose?
Choose based on how you travel
- You drive and travel only within the United States: A REAL ID-compliant driver’s license is generally the simplest option.
- You already have a valid passport book or card: You do not need a REAL ID solely to pass through TSA security, although you may still want a REAL ID driver’s license for convenience.
- You regularly cross Canada or Mexico by land: A passport card may be the most convenient wallet-sized option.
- You do not drive and need domestic-flight identification: A passport card can serve as federal photo identification, but it will not provide driving privileges.
- You may fly internationally: Get a passport book.
- You want a backup proof-of-citizenship document: Add a passport card to your passport book.
- You want the broadest travel options: The passport book is the most versatile choice, with the card as an optional add-on.
Applicants who want both documents can save the separate acceptance fee by applying for the book and card together. See how to add a passport card when you already have a passport book.
Costs, Applications, and Processing Times
REAL ID costs, renewal periods, and application procedures are set by each state. Check your state motor vehicle agency for its exact document requirements, appointment rules, and fees.
Passport applications follow federal rules:
- First-time adult passport card: $30 application fee plus the $35 acceptance fee.
- First-time adult passport book: $130 application fee plus the $35 acceptance fee.
- First-time adult book and card: $160 application fee plus the $35 acceptance fee.
- Adult renewal: $30 for the card, $130 for the book, or $160 for both.
- Expedited processing: Add $60.
Routine passport processing is currently 4 to 6 weeks, and expedited processing is currently 2 to 3 weeks. Review how long it takes to get a passport for complete timing details. Mailing time is not included in the State Department’s processing estimates.
First-time applicants and adults who do not qualify for renewal must apply in person for a passport at a local passport application acceptance facility. Eligible adults may renew by mail or online.
Stuck in a processing backlog? If you have an upcoming trip and cannot secure an urgent appointment at a regional agency yourself, you may authorize a registered third-party passport expediter to submit your application on your behalf. These private companies charge an additional service fee on top of standard government costs to handle the logistics of rapid processing. Third-party expediters secure federal passports; they do not handle state-issued REAL IDs.
Needing ID for a domestic flight does not qualify you for an urgent passport-agency appointment.
Urgent passport appointments require proof of international travel within 14 calendar days. Routine or expedited passport service may still be useful as a future REAL ID alternative, but it is not a guaranteed last-minute solution for domestic travel.
What If You Arrive at the Airport Without Acceptable ID?
Travelers should arrive with a REAL ID-compliant state ID or another identification document accepted by TSA. A passport book and passport card are both accepted alternatives.
TSA ConfirmID may provide a paid identity-verification option for travelers who do not have an acceptable ID. The current fee is $45, and the process can add time at the checkpoint. Identity verification must still be completed successfully, so this should be treated as a contingency rather than a substitute for carrying valid identification.
Review the current TSA identification requirements before flying.
REAL ID and Passport FAQs
No. A valid passport book or passport card is accepted by TSA for domestic flights. You may still want a REAL ID driver’s license because a passport does not provide driving privileges.
Yes. A valid passport card is accepted for domestic air travel and certain federal identification purposes. It does not function as a driver’s license and cannot be used for international flights.
No. International air travel requires a valid passport book. The passport card is limited to domestic flights and qualifying land or sea travel.
Yes. The passport card is proof of U.S. citizenship and identity. A REAL ID driver’s license or state ID is not necessarily proof of citizenship.
REAL ID fees vary by state. A first-time adult passport card currently costs $65 including the acceptance fee, while an adult passport-card renewal costs $30.
There is no universal answer. REAL ID appointment and delivery times vary by state. Passport processing follows current State Department timelines, and mailing time is additional. Compare the time required for each option before relying on it for an upcoming trip.
The book is required for international flights. The card can be useful as a wallet-sized backup ID, proof of citizenship, and document for qualifying land and sea travel. Applying for both together avoids paying a second acceptance fee later.
TSA ConfirmID may offer paid identity verification for travelers without a REAL ID or another acceptable ID. The current fee is $45, the process may add time, and identity verification must still be successful.
No. TSA does not require children under 18 to provide identification when traveling with an adult companion on domestic flights. However, minors do need a passport for international travel.
Official sources: Review current guidance from DHS and TSA for REAL ID, TSA for acceptable airport identification, and the Department of State for passport card and book rules.
Last reviewed: July 2026
Our role: U.S. Passport Service Guide helps travelers compare identification and passport options. State motor vehicle agencies, TSA, the Department of Homeland Security, the Department of State, carriers, and border officials make the final decisions about issuing and accepting travel documents.
