However, this rarely happens because in order to get to a US immigration checkpoint, one must pass through the exit point of a foreign nation; you may be able to enter the US without a passport, but you can’t pass through the Mexican side of the border, nor will you be allowed to board a flight.
Just so,Do you need a visa to travel without a passport?
Visa-free means that you can travel to the destination country without the need for a travel visa. In such a case only a valid passport is required for entry and exit purposes.
Similarly, it is asked,Do you need a US passport to travel abroad?
(Note: U.S. citizens don’t need a U.S. visa for travel, but when planning travel abroad may need a visa issued by the embassy of the country they wish to visit. In this situation, when planning travel abroad, learn about visa requirements by country, see Country Specific Travel Information in the Passport section of this website.)
Hereof,Do you need a US visa to travel to Mexico?
2a) If you don’t hold a passport from one of the countries that don’t need a visa to visit Mexico but you do hold a current, multiple-entry visitor visa for the United States of America, Canada, Japan, the United Kingdom, or any country that is signatory to the European Schengen Area; OR.
Do Brazilians need a visa to visit Mexico?
Brazilians used to need visas to go to Mexico, but fortunatley that changed a couple of years ago. You no longer need a visa to go to Mexico. If you feel more comfortable, you should confirm.