If you are a dual citizen of the United States and the United Kingdom, you should generally fly to Canada using your US passport. US citizens are completely exempt from the Canadian Electronic Travel Authorization (eTA) requirement, allowing you to board your flight without needing any prior digital approval from IRCC.
Navigating international travel rules can sometimes feel like solving a complex puzzle, but holding dual citizenship from both the United States and the United Kingdom offers distinct advantages when flying into Canada. Whether you are travelling to Toronto for a corporate convention, visiting family in Calgary, or taking a scenic holiday in Vancouver, you must strictly comply with the entry requirements set federally by Immigration, Refugees and Citizenship Canada (IRCC). The most common hurdle for international travellers flying to Canada is the Electronic Travel Authorization (eTA).
For dual citizens, knowing which passport to present at the airport can save you time, money, and administrative headaches. 📍 While UK citizens normally require an eTA to board a commercial flight to Canada, American citizens enjoy a special exemption under federal law. Because these border rules apply identically at every Canadian airport—from Halifax to Edmonton—understanding how the Canada Border Services Agency (CBSA) processes dual nationals is crucial. If you ever face complex admissibility issues regarding your travel documents, reaching out to an immigration lawyer from our directory can quickly clarify your legal standing.
Step-by-Step Process in Canada: Flying with US and UK Dual Citizenship
Choosing how to present yourself to airline staff and Canadian border officials is a simple process once you understand the federal exemptions. Here is the best practice for dual US/UK citizens.
Step 1: Choose Your Primary Travel Document
Before you book your flight, you must decide which passport you will use. The golden rule for dual US/UK citizens travelling to Canada is to use the United States passport. The Canadian government grants American citizens a blanket exemption from the eTA requirement, making your travel logistics significantly easier.
Step 2: Understand the eTA Exemption for US Citizens
If you choose to travel on your US passport, you do not need to apply for an eTA, and you do not need a Temporary Resident Visa (TRV). 📝 You simply book your ticket using the details of your US passport. When you arrive at the airport, the airline will scan your American passport, and their automated system will immediately clear you for boarding to Canada.
Step 3: Applying with the UK Passport (If Necessary)
If your US passport is expired or lost, and you must use your British passport, you are legally required to obtain an eTA before you arrive at the airport. You must go to the official IRCC website, fill out the online application using your UK passport details, and declare your dual citizenship when the form asks if you hold nationality from any other country.
Step 4: Wait for the eTA Approval (UK Passport Only)
If you applied with your UK passport, the eTA approval is typically granted within minutes via email. 💻 This digital authorization is electronically linked directly to your British passport. It will remain valid for up to five years, or until your UK passport expires, whichever comes first.
Step 5: Presenting Documents at the CBSA Checkpoint
When you land in Canada, proceed to the primary inspection kiosks. Scan the exact passport you used to book the flight and board the plane. If you used your US passport, present it to the CBSA officer. You generally do not need to show both passports, but you must answer all questions truthfully if the officer asks if you hold other nationalities.
How Much Does it Cost in Canada?
The financial cost of your trip will depend entirely on which passport you decide to use for your journey. Here are the costs in Canadian dollars (CAD):
| Using a US Passport | $0 CAD. US citizens are entirely exempt from the eTA system, so there is no application fee. |
| Using a UK Passport | $7 CAD. This is the official processing fee charged by IRCC for a standard eTA application online. |
| Beware of Scams | Do not use third-party websites that charge $50 to $100 CAD to process an eTA. Always use the official Government of Canada site. |
How Long Does the Process Take?
If you are using your US passport, there is absolutely zero processing time required; you simply pack your bags and head to the airport. ⏱ If you are forced to use your UK passport and must apply for an eTA, the online application takes about 10 minutes to complete. In 2026, most eTA applications are approved by IRCC within 5 to 10 minutes. However, if your application triggers a manual review due to a past criminal record or health issue, it can take up to 72 hours or longer for an immigration officer to process your file.
Frequently Asked Questions (FAQ)
Can I show both my US and UK passports to the airline?
You only need to present the passport that matches your flight reservation. Presenting your US passport is the fastest way to board, as the airline’s computer system will instantly recognize your eTA exemption.
Do I need an eTA if I am driving into Canada from the US?
No. The Electronic Travel Authorization (eTA) is strictly an aviation requirement for people flying into or transiting through a Canadian airport. If you are crossing a land border in a car or taking a cruise ship, an eTA is never required, regardless of which passport you use.
What if I am a UK citizen living in the US as a Permanent Resident?
If you are a US Permanent Resident (Green Card holder) but not a US citizen, you are legally exempt from the eTA requirement when flying to Canada. You will simply need to present your valid UK passport alongside your valid US Green Card to board your flight.
Will the CBSA treat me differently if I use my UK passport?
No. Canada enjoys strong diplomatic relations with both the US and the UK. Border officers will process your entry as a standard foreign national visitor, typically granting you a stay of up to six months regardless of which passport you present.
Do I have to carry both passports with me?
While not legally required to enter Canada, carrying both passports is generally a good idea for international travellers, as it provides a backup piece of secure, government-issued identification in case your primary passport is lost or stolen during your trip.
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