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The complete passport and visa guide

Obtaining a passport and visa is the first step to international travel. In this guide, we cover everything you need to know about the process, along with travel tips and our top destinations for 2025.

If you're planning to travel abroad, the first step is to get a passport. Depending on your destination, you may also need a visa or an electronic authorization. This collection of helpful guides covers everything you need to know about the process and offers tips to make international travel as smooth as possible.

illustration of a passport

How to get a passport?

If you are a U.S. citizen, you can apply for a passport by applying at one of the more than 7,000 passport acceptance facilities across the country. You can also submit your application by mail. To find out more specifically what to do in your situation, follow our guides.

Passport rules per destination

Every country in the world has its own entry requirements, which may include more than simply having a passport. To help you understand what are the rules for your destination, we’ve created dedicated guides. Don’t forget to check the government website of your destination before booking a trip.

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Travel hack


10 all-inclusive vacations, no passport needed

But a passport is always required for international travel, whether you’re taking an all-inclusive vacation in the Caribbean or going on safari in Africa. However, you do not need a passport to travel to U.S. territories like Puerto Rico.

Young African-American couple doing check-in at airline check-in counter at international airport

Do US citizens need a visa for the UK? A look at the ETA rules

Everything you need to know about entering the UK with a US passport, including the ETA rules.

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SENTRI vs Global Entry: compare the programs

To make international travel easier, consider applying for a Trusted Traveler Program, including Global Entry, TSA PreCheck and SENTRI.

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All our passport and visa articles in one place

Passport and visa requirements vary by destination. Below, you'll find everything you need to know—from how biometric passports work to understanding visa rules and travel authorizations. Explore our expert guides to make your journey smoother and stress-free.

How did KAYAK build this guide?

KAYAK worked with top travel writers who are experts in travel logistics, particularly regarding Americans traveling abroad. These writers produced guides to the most commonly asked questions regarding U.S. passports and international travel. While each guide was carefully vetted for factual accuracy at the time of publication, international travel rules can change quickly. Always check the government website of your destination before you book a trip and in the days leading up to departure for any policy changes.

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More travel tips: all about flying

Once you have your passport and the necessary visa or authorization, it's time to enjoy the journey! These helpful guides on flights will come in handy—especially if you have a long-haul flight coming up.

Find the best hotels

Mastering the art of flying is just the beginning—now, explore our hotel guides. Because reaching your destination is only part of the journey, we’ll help you find the perfect hotel or accommodation to fully immerse yourself in your adventure.

Popular destinations, no passport needed

Here are a few destinations U.S. citizens can fly to without a passport or visa. Enjoy your worry-free journey!