If you are renewing your passport in 2026, your options depend entirely on your destination and citizenship. For domestic travel within the United States, you do not need a passport; a REAL ID-compliant driver's license or another government-issued photo ID is perfectly sufficient for TSA checkpoints. However, for international travel, you generally cannot fly without your physical passport in hand. Most countries require your passport to be valid for at least six months beyond your stay, and you must surrender your old passport when applying for a new one. If an emergency arises, you can apply for Urgent Travel Service at a regional passport agency, which can often issue a new book within 24–72 hours if you have proof of imminent travel. Some countries also allow citizens to hold a "Second Valid Passport" for business travelers who frequently need to send one away for visas while still traveling abroad, but this requires a specific application and justification.