Real ID or passport—what do you need to fly?
The document you need at the airport depends on where you are going. For most adult travelers on domestic US flights, a Real ID–compliant driver’s license or another TSA-accepted ID is enough at the checkpoint. For international travel you need a passport (or another accepted travel document)—and if you still have to apply or renew that passport, you need a correct US 2×2 photo first. This guide separates domestic boarding ID from international travel documents, explains when a 2×2 photo is still required, and points you to TSA and State Department pages as the sources of truth. Rules and dates can change—confirm on tsa.gov and travel.state.gov before you fly or apply.
What Real ID is (and is not)
Real ID is a US federal standard for state-issued driver’s licenses and ID cards used for certain official purposes, including boarding commercial aircraft. States mark compliant cards (often with a star). It is not a passport, and it does not authorize international travel by itself.
TSA began full Real ID enforcement at checkpoints on May 7, 2025: state licenses that are not Real ID compliant are no longer accepted as ID for boarding. A US passport or passport card remains an acceptable alternative ID for domestic flights.
- Real ID: enhanced state ID for many domestic airport checkpoints
- Passport: federal travel document for international trips (and a strong domestic backup ID)
- Real ID cards are issued by your state DMV—not through a passport photo crop site
Domestic US flights
For most adults on domestic flights, bring a Real ID–compliant driver’s license or another ID from TSA’s accepted-ID list. A US passport or passport card works for domestic checkpoints even if you do not have a Real ID license.
Children and special cases follow TSA rules. When in doubt, read TSA’s Identification page rather than airport rumors. Starting February 1, 2026, TSA has described an optional paid ConfirmID path for travelers without acceptable ID—treat that as a last resort and verify current details on tsa.gov; getting a Real ID or carrying a passport is the cleaner plan.
Having Real ID for a domestic trip does not mean you should cancel a passport application if you also plan international travel later the same year. The documents solve different problems.
International flights need a passport
Leaving or returning to the United States by air almost always requires a valid passport book (or another travel document your airline and destination accept). A Real ID license alone is not a substitute on international itineraries.
Airlines and foreign border officers care about the passport. TSA may still ask for ID at the checkpoint; your passport usually covers that role on the way out as well. Confirm entry rules for your destination separately (visa, ESTA, and so on).
When you still need a 2×2 passport photo
You need a US passport photo when you apply for or renew a US passport—not when you renew a Real ID at the DMV. The DMV captures Real ID portraits in its own process.
For a passport, crop to the US 2×2 template: print two identical photos for many paper paths, or export a JPEG for online renewal. Read travel.state.gov photo requirements for size, background, expression, and file rules.
- Online passport renewal → digital 2×2 JPEG
- Mail-in / in-person passport → printed 2×2 photos as your form requires
- Many US visas use the same 2×2 format—confirm your form
- Real ID at DMV → follow state instructions; do not substitute a home passport crop
Domestic + international itineraries
If any segment of the trip is international, plan as if the passport is required. A Real ID may still be useful as a secondary ID, but it does not replace the passport for leaving the country.
If your passport is expired and you only have a domestic weekend trip, Real ID (or another TSA-accepted ID) can cover that domestic flight while you wait on passport processing—confirm timing so you do not miss an international departure later.
Quick decision checklist
- Domestic only, Real ID ready → you usually do not need a new passport photo for that flight alone
- Domestic only, no Real ID → use a passport or another TSA-accepted ID; do not rely on a non-compliant license
- Any international segment → you need a passport (and a compliant 2×2 photo if you must still apply)
- Applying for a passport now → follow US 2×2 photo rules, then crop before you print or upload
- DMV Real ID appointment → bring what your state lists; passport photo tools are a different product
Official sources to trust
For boarding ID, use TSA pages on acceptable identification and Real ID. For passport photos and passport applications, use travel.state.gov. Size guides on this site help you crop a 2×2 file; they do not replace government checklists for Real ID enrollment or airline document checks.
Third-party blogs go stale after enforcement dates change. If a tip conflicts with tsa.gov or travel.state.gov, follow the government page.
Common mix-ups to avoid
Do not assume Real ID replaces a passport abroad. Do not assume a passport photo crop is what the DMV needs for Real ID. Do not wait until the airport week to discover your license lacks the Real ID mark if you also lack a passport.
Passport cards help for some land/sea crossings and can serve as domestic fly ID, but they are not a full substitute for a passport book on most international air trips—confirm for your itinerary.
If you still need to apply for a passport
Prepare the photo early: plain white or off-white background, recent likeness, correct head size, natural or neutral closed-mouth expression. Crop with a US 2×2 template, then print or upload as your process requires.
Our free browser tool can help with framing on your device. Final acceptance is decided by the State Department. Pair the photo step with the correct application path (online renewal vs paper) so you do not buy the wrong deliverable.
Ready to crop your photo?
Free online tool—pick your country template (US 2×2 or UK 35×45), align your head, and download. No account needed.