Two different people check two different things on your way into Canada, and mixing them up is where confusion starts. The airline agent at check-in only confirms that a valid eTA is linked to the passport you’re presenting — nothing more. Whether you can actually explain your visit, prove you’ll leave again, or cover your own costs is not the airline’s job at all. That conversation belongs entirely to the border services officer who meets you after you land.
The airline’s check is narrow on purpose: it exists to stop people from boarding a Canada-bound flight without a travel authorization at all, since a passenger refused at the Canadian border becomes the airline’s problem to fly home. It is not an admissibility check, and it is not the same electronic record you saw when you last ran a status check yourself — an eTA that looked “Approved” months ago can have been pulled for review and cancelled since, and the airline’s scan is what actually catches that, not your memory of an old confirmation email.
What the airline actually confirms at check-in
The gate or check-in agent scans the passport you present and gets one of two answers back: a valid eTA is attached, or it isn’t. That’s the entire check. No supporting documents, no questions about your trip, no assessment of whether you’ll go home on time — none of that is within the airline’s authority or interest.
This is also why the passport matters more than the approval email. The eTA is a record attached to a passport number, not a certificate you carry — so bring the same passport you applied with, and make sure it’s still the one linked to a live authorization. If your eTA was ever placed under a document review and the deadline for that review has already passed, the scan at check-in will come back empty even though your old approval email still says “approved” — that gap between an old email and today’s actual status is exactly what the airline’s scan exists to catch. Checking your eTA application status before you leave for the airport is what closes that gap on your side, while there is still time to do something about it. There is nothing to print and nothing else to hand over at this counter.
What only the border officer asks: your reason for travel
A border services officer may ask why you’re visiting. Most visitors answer this verbally without issue, but having paper backup for your reason makes the conversation shorter and cleaner.
- Tourism or visiting family: Hotel bookings, tour confirmations, or a letter from the person you’re staying with. If someone in Canada formally invited you — a person or a company — bring that invitation letter. An officer may ask to see it.
- Business travel: Conference registration, meeting agenda, or a letter from your employer explaining the purpose of the trip. See what to carry specifically for a conference, trade fair or exhibition if that’s your reason for visiting.
- Medical visit: Appointment letters or referral documents from the treating facility.
None of these are mandatory to have in print, but they answer the officer’s question before it becomes a prolonged conversation.
Evidence of Your Intent to Depart Canada
An eTA authorizes a visit, not a stay. The officer at the border needs to be satisfied that you’ll leave when your authorized time is up. Most visitors are allowed up to six months, though the officer can set a shorter period based on your stated plans.
Documents that support this:
- Return or onward flight ticket with your name and travel dates
- Proof of employment back home — a letter from your employer, recent pay stubs, or evidence of a business you run
- Lease agreement or mortgage documents showing you have a home to return to
- Evidence of family ties — a partner, children, or dependants at home
Not every item on that list is necessary. What matters is that your life is clearly anchored somewhere else and that Canada is a temporary stop.
Financial Preparedness: Showing You Can Support Yourself
You must have enough money to cover your stay. There’s no fixed number an officer uses — it depends on the length and nature of your trip. What matters is that you can demonstrate you won’t be a financial burden and that you can pay your own way home.
Useful documents to have accessible:
- Recent bank statements showing a healthy balance
- Credit card statements or evidence of available credit
- Traveller’s cheques or cash (though large amounts of cash may prompt separate questions)
If someone in Canada is hosting you and covering your expenses, a letter from that person explaining the arrangement and their contact details can substitute for some of this. None of this is the same as travel insurance, which the eTA application never asks about.
Additional Documents for Specific Travel Scenarios
Most adult travellers with a valid passport and approved eTA won’t need anything beyond what’s listed above. A few situations call for more, including travellers carrying prescription medications, who should check what you need to know about bringing medications into Canada, and anyone bringing a pet to Canada for a visit, which comes with its own paperwork.
Travelling with a child under 18:
This is the area where people most often arrive underprepared. The documents required depend on who the child is travelling with:
| Situation | Documents to carry |
|---|---|
| Child travelling alone | Child’s passport, copy of birth certificate, letter of authorization signed by both parents/guardian with contact info and name of adult caring for child in Canada |
| Child with one parent | Child’s passport, birth certificate copy, letter from non-travelling parent with their contact info and photocopy of their signed passport or national ID |
| Separated/divorced parents, shared custody | Child’s passport, copies of custody documents, ideally a letter from the other custodial parent |
| One parent has sole custody | Child’s passport, letter from that parent, copy of custody decree |
| One parent is deceased | Child’s passport, copy of the deceased parent’s death certificate |
| Child with a non-parent adult | Child’s passport, written permission from parents/guardians with contact info, photocopies of parents’/guardians’ signed passports or national IDs |
Canadian-American dual citizens:
Dual citizens can travel to Canada on either a valid Canadian passport or a valid U.S. passport. If you use only your U.S. passport, carry identification that shows your Canadian citizenship — you may be directed through immigration screening.
U.S. lawful permanent residents:
U.S. LPRs are exempt from the eTA requirement but must carry official proof of their U.S. permanent resident status along with a valid passport from their country of nationality.
If your eTA application was refused rather than approved, the entry question becomes a different one — what happens after a Canada eTA refusal covers what your options are from there.
FAQ
Do I need to print my eTA approval email? No. Your eTA is electronic and linked to your passport. Airline staff and border officers access it by scanning your passport. Keeping the approval email on your phone is a useful backup for reference, but it’s not a required document.
What if my eTA is linked to an old passport? You’d need to travel with that old passport (as long as it’s still valid) or apply for a new eTA using your current passport number. A new eTA cannot be guaranteed at the last minute, so sort this out before your travel date.
Will I be asked for a return flight ticket? Possibly. Officers aren’t required to ask, but a return or onward ticket is one of the clearest ways to show you intend to leave. It’s worth having it accessible, printed or on your phone.
What counts as proof of sufficient funds? There’s no fixed threshold. Recent bank statements, credit card statements, or evidence of available credit all work. If a host in Canada is covering your costs, a letter from them explaining this and providing their contact details supports your case.
Are there specific documents needed if I’m travelling with children? Yes, and they vary by situation. See the table in the section above. The consistent thread is a letter of authorization from any absent parent, plus supporting documents (birth certificate, custody decree, death certificate) depending on your family circumstances.
Common Mistakes
(See the section above — “Mistakes That Get People Held Up at the Border” — which covers the five most consequential ones in detail.)
The single thing that decides whether you board and whether you enter is your passport: specifically, the one your eTA is tied to. Confirm that match now, gather the supporting documents that fit your situation, and you’ll have everything a border officer needs to wave you through. If anything about your eTA status is unclear before you travel, check it while you still have time to act.