Passport

Passport

A government-issued travel document that verifies a traveler's identity and nationality, required to enter and exit most foreign countries and typically valid for 5 to 10 years depending on the issuing country.

Victoria Landsmann

•July 27, 2026•
5 minute read

Key Takeaways

A passport is a government-issued travel document that proves a traveler's identity and nationality, required for entry into most foreign countries and for re-entry into the traveler's home country. Many destinations require the passport to remain valid for at least six months beyond the planned departure date, a rule separate from the document's printed expiration date.

  • U.S. passport processing runs 4-6 weeks for routine service and 2-3 weeks for expedited service as of April 2026, not counting mailing time [1].
  • The U.S. issued a record 27.3 million passports in FY2025, driven by renewal demand and new international entry requirements [1].
  • Navan's booking flow flags passport expiration dates that fall inside a destination's minimum-validity window before a traveler confirms an international trip.
  • A passport proves who a traveler is; it does not by itself grant entry to a country. That permission, when required, comes from a visa or a passport control check at the border.

What Is a Passport?

A passport is an official travel document, issued by a national government, that certifies its holder's identity, photograph, and citizenship or nationality. It is the primary document travelers use to cross international borders and the document airlines and border agents rely on to confirm a traveler is who they claim to be.

Most passports are valid for five to ten years from the date of issue, though validity periods vary by country and, in some cases, by the age of the applicant. The passport itself does not grant permission to enter a foreign country. It establishes identity and nationality; a separate visa, when required, grants entry permission for a specific purpose and duration [2].

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Passport vs. Visa vs. Passport Control

These three terms describe different steps in the same trip, and mixing them up causes real booking mistakes. A passport is the identity document itself. A visa is permission, often a stamp or digital record tied to that passport, that a destination country grants before or at arrival. Passport control is the physical checkpoint at a border where an officer inspects the passport, and any required visa, before allowing entry or exit.

Term

What It Is

Who Issues It

When a Traveler Encounters It

Passport

Identity and nationality document

Traveler's home government

Applied for before any trip; carried on every international trip

Visa

Entry permission for a specific country and purpose

Destination country's government

Applied for in advance, or granted on arrival, depending on the country

Passport control

Border checkpoint that verifies the passport and visa

Destination or departure country's border agency

At the airport, land border, or port of entry, on arrival or departure

A traveler can hold a valid passport and still be denied entry at passport control if the destination requires a visa the traveler does not have. Conversely, a valid visa is worthless without an accompanying passport that has not expired and meets the destination's minimum-validity requirement.

The Six-Month Validity Rule

Many countries will deny boarding or entry if a passport expires within six months of the travel dates, even though the passport itself is technically still valid on the day of travel. Airlines frequently enforce this rule at check-in on behalf of the destination country, since the airline can be fined for carrying a passenger who is later refused entry [2].

This rule catches business travelers more often than leisure travelers, since a passport renewed five years ago for a single trip can quietly slip past the six-month threshold without the traveler noticing until a same-week trip gets booked. Checking passport expiration against a specific destination's requirement, not just against the current date, is the safest way to avoid a denied boarding at the gate.

Sources

[1] RushMyPassport, "Why Passport Wait Times Are Still Long in 2026," 2026. https://www.rushmypassport.com/blog/why-are-passport-wait-times-still-long-in-2026/

[2] IATA, "The Most Important Travel Documents for Your Trip," IATA Knowledge Hub. https://www.iata.org/en/publications/newsletters/iata-knowledge-hub/the-most-important-travel-documents-for-your-trip/

Best Practices for Managing Passports in a Business Travel Program

A travel program that treats passport validity as an individual traveler's problem discovers the gap at the worst possible time, usually a few days before a trip. A few habits prevent that.

Check passport expiration against the destination's rule, not the calendar date. A passport that expires in four months is still "valid" today but can trigger a denied boarding for a destination with a six-month rule. Building this check into the booking approval step catches the problem while there is still time to expedite a renewal.

Track expiration dates centrally for frequent international travelers. A traveler profile that stores passport expiration alongside travel preferences lets a travel manager flag renewals before they become urgent, rather than discovering the issue when a trip is already booked. Navan stores this information in each traveler's profile so approvers see it at booking time, not after.

Budget real time for renewals during high-demand periods. Processing times lengthen every year between January and June, so a travel program with predictable international travel should build renewal reminders around the October-to-December window when demand, and wait times, are lower [1].

Confirm which countries require both a passport and a separate visa before departure. Passport control at the destination will check for both documents together. A traveler who assumes a valid passport is sufficient for a country that also requires a visa risks being turned back at the border.

When Passport Rules Intersect With Other Travel Documents

A passport rarely travels alone. Depending on the destination, a business traveler may also need one or more of the following, each governed by its own rules and application timeline.

A visa waiver program lets citizens of eligible countries enter certain destinations for short stays without a traditional visa, though it still requires a valid passport and, increasingly, a separate electronic travel authorization applied for in advance. Trusted traveler programs like Global Entry and TSA PreCheck speed up re-entry and domestic security screening for frequent travelers, but neither replaces the passport itself or waives any destination country's entry requirements.

The practical takeaway for a travel program is that passport validity is the baseline requirement, not the finish line. A corporate travel policy that only tracks passport expiration, without also flagging visa or entry-authorization requirements by destination, leaves a gap that shows up at passport control rather than at booking.

  • Passport control: The border checkpoint where a passport, and any required visa, is physically inspected before entry or exit is granted.
  • Visa waiver program: An agreement that lets eligible passport holders enter certain countries for short stays without a traditional visa.
  • Global Entry: A trusted traveler program that speeds up passport control on re-entry to the traveler's home country.
  • TSA PreCheck: A domestic screening program that speeds up airport security but, like Global Entry, does not substitute for a valid passport on international trips.
  • Corporate travel policy: The rulebook that governs business travel, including how a program handles passport, visa, and entry-authorization requirements by destination.

Frequently Asked Questions About Passport


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