Here are some useful resources for finding out what you need to know before your international check-in, and which forms you need to get, plus where to get them.
Every nation's requirements are different. Learn about specific visa and passport requirements for your nationality.
Find out more about U.S. government passport and visa requirements, download application forms, or learn where to apply by visiting these U.S. Department of State and Department of Homeland Security sites:
Passports are now required for travel between the U.S. and Canada, Bermuda, and Mexico.
Exceptions are no longer being made for those who have applied for their passport but haven't received it. Make sure you have your passport with you for your international check-in to travel within the areas listed above.
For details see Travel.State.Gov.
You don't need to worry about getting this form ahead of time—it will be distributed by your flight attendants during your flight. The I-94 form must be completed by everyone except:
The Center for Disease Control gives you comprehensive health information for specific destinations, required vaccinations, information for travelers with special needs, and timely updates about other health news.
Before arriving for international check-in, each traveler or head of family needs to provide information about any goods and gifts they have acquired while they were traveling abroad. Visit the U.S. Customs & Border protection Web site to find out more about