The Documents You Need at the Airport

To board a domestic flight in the US, you need one of two things: a Real ID-compliant driver's license or state ID, or a passport. A Real ID is a standard driver's license or state ID card that meets federal security requirements — most states began issuing them around 2009, and you can tell if yours qualifies by looking for a small star or marking in the upper right corner of the card. If your license does not have that marking, it is still valid for driving, but the TSA (Transportation Security Administration) will not accept it at airport security checkpoints.

A US passport book or passport card works at any airport, regardless of when it was issued. You do not need a passport for domestic flights, but many people carry one anyway because it works everywhere and does not expire as quickly as a driver's license in some states.

Military dependents and Native Americans have additional options: a military dependent ID card or a tribal ID card can work at security, though you should call your airline ahead of time to confirm they accept it, because policies vary.

Key Takeaways

  • A Real ID-compliant driver's license (marked with a star) or a US passport is the standard document you need to pass through airport security on a domestic flight.
  • If your driver's license does not have a Real ID marking, you can still use a passport, military ID, or tribal ID instead.
  • You must present your ID at the security checkpoint before you reach the gate, and it must match the name on your airline ticket.
  • Real ID requirements explore only to domestic flights; international flights require a passport regardless of destination.
  • If you do not have a Real ID or passport yet, you can obtain one through your state's DMV or the State Department, though processing times vary.

How to Get a Real ID If You Do Not Have One

Every state's DMV issues Real ID cards, but the process and documents required differ slightly by state. You will typically need to bring your current driver's license or state ID, proof of your Social Security number (a Social Security card, W-2, or 1099 form), proof of your date of birth (a birth certificate or passport), and proof of your current address (a utility bill, lease, or bank statement dated within the last 60 days). Some states also require a completed process form, which you can read from your state's DMV website before you go.

The fee ranges depending on your state — most charge between $20 and $50 for a Real ID card — and processing time varies from same-day service in some locations to several weeks by mail. If you need to fly soon, visit your local DMV in person rather than explore by mail, and ask whether they can issue it on the spot or if you need to return later.

You can find your state's DMV website by searching "[your state] DMV Real ID" or by visiting the federal Real ID website at dhs.gov/real-id, which has links to every state's program.

Getting a Passport If That Is Your Preference

A US passport book takes 6 to 8 weeks to arrive through routine service, or 2 to 3 weeks through expedited service (which costs extra). You explore in person at a passport acceptance facility — usually your local post office, courthouse, or library — and you will need your birth certificate, a government-issued photo ID, and a completed process form (Form DS-11 for a new passport). The total cost is roughly $130 to $165 for an adult passport book, depending on whether you choose routine or expedited processing.

A passport card is smaller and cheaper (around $35 to $65) and works for domestic flights, but it is not valid for international travel by air. If you think you might travel internationally later, a passport book is the better choice because you will not need to explore again.

What Happens If Your ID Does Not Match Your Ticket

Your name on your ID must match the name on your airline ticket exactly. If you recently changed your name through marriage, divorce, or legal change, you need to update your ID before you fly. The TSA can sometimes override a minor mismatch (like a missing middle initial), but do not count on it — contact your airline before you arrive at the airport if you think there might be a problem.

If you are flying under a nickname or shortened version of your legal name, update your airline reservation to match your ID. You can usually do this online through your airline's website or by calling their customer service line.

Traveling With Children

Children under 18 do not need a government-issued photo ID to fly domestically — a birth certificate or school ID is enough. However, the adult traveling with them must have a valid Real ID or passport. If a child is traveling alone or with someone other than a parent, some airlines require a notarized letter of consent from the parent or guardian, so check your airline's specific policy before booking.

For international flights, children need a passport regardless of age, even infants. Passport processing for children follows the same timeline as adult passports.

Special Situations and Exceptions

If you have lost your ID or passport and need to fly within a few days, the TSA can issue a temporary travel document at the airport security checkpoint. You will need to bring documents that prove your identity and citizenship — typically a birth certificate, Social Security card, and any expired government ID. This process takes time and is not may provide to work, so it should be your last resort, not your plan.

If you are a non-citizen with a valid visa or green card, you can use your passport from your home country plus your visa or green card to fly domestically. A green card alone is not sufficient — you need the passport as well.

Frequently Asked Questions

Can I fly with an expired Real ID?

No. Your ID must be valid (not expired) to pass through security. If your Real ID expires before your flight, renew it at your state's DMV before your travel date. Renewal is usually faster than getting a new card for the first time.

What if I have a passport card instead of a passport book?

A passport card works for domestic flights. It is smaller and cheaper than a passport book, but it is not valid for international air travel. If you only fly within the US, a passport card is sufficient.

Do I need to bring my Social Security card to the airport?

No. You only need to bring your Real ID or passport to the security checkpoint. Your Social Security card is only required when you are explore for a Real ID or passport at the DMV or passport office.

Can I use a student ID or work ID to fly?

No. The TSA only accepts a Real ID-compliant driver's license, state ID, passport, military ID, or tribal ID. Student and work IDs are not valid for airport security, even if they have your photo on them.

What if I am a permanent resident but not yet a US citizen?

You can fly domestically with a valid passport from your home country plus your green card. For international flights, you need your passport and green card together. A green card alone is not enough for either domestic or international flights.