Passports, Visas & Entry Documents
Authoritative sources for international entry requirements, used by virtually every airline at check-in.
- IATA Travel CentreOfficial
Passport, visa, and health requirements drawn from Timatic, the airline industry standard.
iatatravelcentre.com - U.S. Travel Docs (ustraveldocs.com)Official
Official U.S. visa application services for travelers coming to the United States.
ustraveldocs.com - Traveldocs.com (Worldwide)
Worldwide visa and travel document processing service.
traveldocs.com - VFS Global
Visa application services for 60+ client governments across the globe.
vfsglobal.com - Six-Month Passport Validity Rule
Why most countries require six months of remaining validity on your passport.
vfsglobal.com - CBP: Six-Month Passport Validity Update (PDF)Official
Latest U.S. Customs & Border Protection guidance.
cbp.gov
TSA PreCheck® & Trusted Traveler Programs
Move through security and international arrivals faster with DHS Trusted Traveler enrollment.
- TSA PreCheck®Official
$76.75 for 5 years, expedited screening at U.S. airports.
tsa.gov - Global EntryOfficial
$120 for 5 years (minors free), streamlined international arrival, includes TSA PreCheck®.
ttp.dhs.gov - DHS Trusted Traveler Programs (all)Official
Compare Global Entry, NEXUS, SENTRI, and FAST to find the right fit.
ttp.dhs.gov - TSA Travel ChecklistOfficial
Everything you need before, during, and after your flight.
tsa.gov
Health, Vaccinations & Travel Medicine
CDC-vetted destination health notices, recommended vaccines, and how to find a travel clinic.
- CDC Travelers' Health, DestinationsOfficial
Country-by-country health recommendations and vaccine requirements.
wwwnc.cdc.gov - CDC Travel Health NoticesOfficial
Current outbreaks and health-related travel advisories.
wwwnc.cdc.gov - Find a Travel ClinicOfficial
Locate a certified yellow fever or travel medicine clinic near you.
wwwnc.cdc.gov - CDC Traveler Information CenterOfficial
Guidance for pregnant travelers, cruises, immunocompromised travelers, and more.
wwwnc.cdc.gov - NFID: Vaccines for International Travel
Plain-language overview from the National Foundation for Infectious Diseases.
nfid.org
Travel Advisories & Safety
Check State Department advisories and current restrictions before you book, and again before you fly.
- U.S. State Department Travel AdvisoriesOfficial
Four-level advisory system for every country in the world.
travel.state.gov - USA.gov, Travel Advisory OverviewOfficial
Plain-language explainer of how advisories work.
usa.gov - USA.gov, Traveling AbroadOfficial
Passports, visas, dual nationality, emergencies overseas.
usa.gov - Where Can't Americans Travel?
Overview of countries with U.S. travel restrictions.
rusticpathways.com - CRS: U.S. Travel Restrictions (PDF)Official
Congressional Research Service brief on current U.S. travel restrictions.
congress.gov
U.S. Borders & Visiting the USA
For clients arriving in or departing from the United States.
Skip the research. Travel with confidence.
Our concierge team pre-verifies entry requirements, vaccination guidance, and border-ready documents for every WorldKey itinerary, so you never arrive at the gate wondering.
Third-party links are provided for convenience. Requirements change frequently, always confirm the latest guidance with the official government source or your WorldKey advisor before travel.