For most US citizens, the safest answer is to bring a valid passport when going to Canada, especially if the trip involves a flight.
Around 22.8 million US residents traveled to Canada in 20251, marking a continued stream of US residents visiting their northern neighbors. A key part of this movement is because of the relative ease with which US citizens can travel to Canada – in many situations, a valid passport is the simplest and most widely accepted travel document for entering Canada.
However, ease of access doesn’t always mean a consistent way of access. Depending on whether you travel by land, air, or sea, you can use alternative documents like an Enhanced Driver’s License or a NEXUS Card.
In this article, we’ll cover everything you need to go back and forth to Canada as a US citizen, including whether a passport is involved, whether birth certificates can be used instead, and how it applies to individuals like children.
If you want to travel to Canada by air, you will need a passport. For most international air travel, including travel to Canada, US citizens need a valid passport book. You might think that your REAL ID may allow you entry into Canada, but legally speaking, a REAL ID verifies identity and lawful presence under federal standards, but it does not establish US citizenship. You can use it to board domestic flights within the US, but to travel to other countries – even nearby ones like Canada – airlines will require your passport.
Most US citizens flying to Canada should carry a valid passport book. NEXUS members may be able to use their NEXUS card as a travel document on certain US-Canada flights, but travelers should verify airline policies and carry a passport whenever possible.
Once you have all your requirements, it’s important to always keep them on hand when going to and coming home from Canada. Airlines are required to verify that passengers have the documentation needed for international travel before boarding (even as an American citizen), and agencies like the TSA can make your outgoing and return trip difficult if you don’t have your documents.
REALITY: Neither document is sufficient by itself for most US-Canada international flights. Most travelers should carry a valid passport book, while certain NEXUS members may be able to use a NEXUS card on eligible Canada routes.
MYTH: All you need to fly to Canada as a US citizen is either your REAL ID or driver’s license.
You don’t need a passport book to drive across the Canadian border, though a passport book can still be used as supporting proof of your identity if you ever end up questioned. Land border officials accept the following documents:
Yes, but non-passport documentation is accepted differently depending on how you enter the country.
Yes, US citizens aged 15 and under can enter Canada by land or sea with just a birth certificate. However, travelers 16 and older cannot rely solely on a birth certificate. Adults must carry a valid passport, passport card, or an EDL.
Birth certificates paired with a standard driver's license are highly discouraged. While Canadian border officers may accept them, re-entering the United States requires WHTI compliant documents. If you’re caught lacking WHTI-compliant documents, you may be referred to secondary inspection while officers verify your citizenship, which can result in additional processing time.
Like the previous discussion about birth certificates, the primary difference between whether a non-passport documentation is available or not is the method of entry. For children flying into Canada from the US, a valid passport is necessary for any flight.
If traveling via land or sea, kids ages 15 and under do not strictly need a passport. They can present an original or certified copy of their birth certificate, a Naturalization Certificate, or a Consular Report of Birth Abroad. For any kids aged 16 and above, they can present a passport, passport card, or a trusted traveler document like a NEXUS card.
However, there are specific rules that can apply to a single parent traveling with their child. To prevent child abductions, Canadian authorities strongly recommend carrying a consent letter when a child travels with only one parent, although circumstances vary.
A REAL ID is a state-issued driver's license or identification card that meets federal security standards. It allows you to board domestic flights, enter secure federal buildings, and visit military bases. Think of it more as an access pass that allows you to move through different places in the United States.
However, it is not considered as proof of US citizenship and does not replace a passport for international travel. The passport system is an internationally recognized system of allowing travelers into a country’s borders. Domestic travel within the US has different and more easily accessible ways of verifying your identity, so a passport isn’t required.
The current 2026 guidance from the Government of Canada and the Canada Border Services Agency (CBSA) outlines documents a US citizen can generally use to enter Canada by different modes of travel. Note that table addresses entry into Canada – requirements for returning to the United States may differ and are governed by US rules.
| Document | Air | Land | Sea |
|---|---|---|---|
| Passport book | Yes | Yes | Yes |
| Passport card | No (not valid for international air travel) | Yes | Yes |
| NEXUS card | Yes | Yes | Yes* |
| Enhanced driver’s license (EDL) | No | Yes | Yes |
| Birth certificate (children) | No (not sufficient for air travel) | Generally accepted as proof of citizenship; may need accompanying ID or other documentation depending on age and circumstances | Generally accepted as proof of citizenship; may need accompanying ID or other documentation depending on age and circumstances |
*NEXUS members may use a NEXUS card to enter Canada by air, land, or boat through applicable NEXUS procedures. CBSA advises carrying a passport and/or proof of status in case additional proof is requested.
Arriving at the Canadian border without a passport can introduce several complications to your trip, depending on your entry into the country.
If you’re traveling by plane, you may be denied boarding by your airline if you do not have the required travel documents. Travelers arriving by air generally require a passport book or another accepted travel document. Eligibility and admissibility are ultimately determined by Canadian border officials and regulations.2
The process for land or sea travel is somewhat more complex. While a passport is highly recommended, travelers driving across the land border occasionally cross using an EDL, a US Passport Card, or a NEXUS/Trusted Traveler card. If you have absolutely no WHTI-compliant travel document, your chances of being let through might be entirely up to the discretion of the agent handling your case.
If you're thinking of traveling to and from Canada from the US, here are a few things you should keep in mind to make your trip as hassle-free as possible.
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Yes, you may drive across the Canadian border as long as you have your US passport card, EDL, or any card that falls under the Trusted Traveler program like NEXUS.
No, REAL ID is not counted as an internationally recognized form of identification that allows crossing the border into Canada or other countries.
Yes, you may use a passport card to enter Canada if you’re entering via land or sea. However, it’s still highly recommended to have your actual passport with you even if you have a passport card to ensure you have other forms of identification.
Children under 16 years old can enter with a birth certificate through land or sea routes. Children of all ages require a passport if they’re flying to the country.
Children under 16 years old can enter Canada with a birth certificate. Adults require a passport or another acceptable document like their passport card or NEXUS card depending on their mode of entry into the country.
By air, most US citizens need a valid passport book, although certain NEXUS members may be eligible to travel using their NEXUS card on approved routes. By land or water, you can use a passport book, passport card, NEXUS card, or Enhanced Driver’s License (EDL). Visas are not required for tourist stays under 180 days.
Yes. If you fail to present any valid documents in the airport or on the border on your way to Canada, officials can deny you entry into the country.
Sources: all third party information obtained from applicable website as of June 29, 2026
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