I will be traveling out of the country (from US, visiting Canada) for the first time this summer. It's a week long trip for a conference. I'm fairly familiar with how airports work for domestic flights, but immigration will add a new wrinkle for me. Mostly, I don't know what to expect.

  • What should I expect in regards to taking my suitcase carry-on vs checking it? E.g. Will baggage claim be before or after immigration in each direction?
  • How much time should I expect? I have to imagine simple business trips between the US and Canada are pretty routine, but I don't know the routine yet.
  • What should I be aware of regarding purchasing small souvenir items? Picking up some Canadian maple syrup while I'm there seems like a good idea also.

Adding relevant/requested details:

  • Route undetermined, but likely to involve one stop.
  • Probable airports are STL -> ??? -> YUL.
  • Obvious intermediate stops are ORD and YYZ.
  • 1
    What is your flight route? If you're connecting, it changes things. Also, whether the Canadian destination airport has US preclearance or not changes things when you come back. Nothing you've described will be a problem, though. Jan 11, 2018 at 21:58
  • 1
    It should be noted that the procedures for international travel between the US and Canada are rather different than those between the US and most other countries (the existence of US pre-clearance facilities in Canadian airports being the most obvious difference.) Jan 11, 2018 at 22:21
  • If you're connecting via YYZ, be sure you've got a good long layover both ways: you'll be clearing Canadian customs there on your way to Montreal, and clearing US customs there on your way back. My most recent experience doing this (BDL–YYZ–YWG & return, December 2017) was surprisingly smooth, but I have enough bad memories of customs lineups at YYZ that I'd be nervous about a layover shorter than 2 hours (and wouldn't really rest easy unless it was at least 2.5 hours.) Jan 11, 2018 at 22:30
  • 1
    Are you a US citizen? If not, you may need to arrange an eTA before you fly. Jan 11, 2018 at 22:37

4 Answers 4


From the US to Canada, assuming you don't have a connection, it will look like this:

Leaving the US there are no customs checks, it will be like a domestic flight, but you may go to a different terminal or arm of a terminal than usual.

When you land in Canada, you will line up to talk to one set of people before you can claim your baggage. Depending on the airport you're using, this may involve more kiosk action than people, but you will emerge either way with a small slip of paper. Then you will go with the crowds to baggage claim. Once you have your checked luggage (or once you've walked past the belt if you don't have any) you will exit through a small area where customs officers will want to see (and usually take) the small slip of paper and you will go out into Arrivals to get a taxi or meet your reception or whatever.

There is a small chance that during the first conversation, at the baggage belt, or at the final exit when handing over the slip of paper that you will be "sent to secondary" to have a longer conversation. When that is over you will rejoin the process, assuming you are let in.

Coming home, you will probably clear US customs in Canada. (There are no Canadian exit checks so you won't interact with Canadian customs or immigration on your way out.) In some airports, US preclearance is before you hand your checked bags over onto a luggage belt, but at YYZ they somewhat confusingly changed it so that you check in your bag and then go to US preclearance. Whatever, it's a similar process as entering Canada was. If you're bringing home souvenirs, and they are asked about on the form, say "yes." For example, maple syrup is food. A bored person will ask you "What food?" and you will say "some maple syrup" and that will be that. Do not fail to declare what you are bringing home with you. After the person you carry on to board the plane as usual. When you land you'll be in the domestic area and will simply claim your luggage and go home as always.

If you have a connection, you will clear Canadian customs at your first Canadian airport on the way in. You will pre-clear US customs at your last Canadian airport on the way home. Discuss with your airline whether you will need to interact with your checked luggage during the connection; it depends on the connecting airport.

Overall the lining up, talking to someone or using a kiosk, and lining up again can add anywhere from half an hour to more than an hour to the landing process. (Or to the departure process, meaning you need to arrive at the airport in time. Pay attention to the times they tell you to get to the airport, not just the boarding gate.) It depends how many other planes are there at the same time for landing, or how many other people are trying to leave for departing. A few times a year it adds 2 or 3 hours and then that makes the news.

  • If you take a seaplane from USA to Canada (i.e. Harbour Air) you will take your luggage with you when going to passport control. They do not have baggage facilities (nor security) at seaports - at least in Victoria and Vancouver.
    – George Y.
    Jan 11, 2018 at 22:13
  • 1
    Just to emphasize an important point in the above: if the first leg of your return flight is the one that crosses the border, you will most likely be passing US Customs before your first flight (so-called "pre-clearance"). This means that you will need to arrive at the airport early enough to allow for this. At the larger airports (YYZ, YVR, YUL), I would recommend allowing for an extra 60–90 minutes relative to a domestic Canadian flight. Jan 11, 2018 at 22:17
  • You don't pick up baggage at all airports. In YYC (Calgary), e.g., they'll hold you up until they confirm Customs has your bags, but you don't claim them unless they are to be opened. You don't even need to re-clear security after clearing Customs. (Assuming you're connecting.) Jan 11, 2018 at 22:22
  • 2
    @JimMacKenzie: The same system now exists at YYZ as well: you no longer need to re-claim your bags if you are connecting to another flight. (This was a new and welcome change when I flew BDL–YYZ–YWG this past Christmas.) Jan 11, 2018 at 22:27
  • Underscoring getting to the airport for pre-clearance with ample time: when flying directly to a US airport from Montreal in the large bank of flights that departs early morning do be sure to be there a couple hours early. This is the busiest time for US Immigration at YUL and wait times can be over an hour. At other times it usually adds next to nothing. If you end up connecting through YYZ on the way back, there are special lines for people in transit that move faster at congested times, make sure to join those.
    – Carl
    Jan 13, 2018 at 18:33

Provided you have a Passport and no criminal history**, travel to Canada from the US is fairly routine.

Traveling both directions, there is no meaningful difference between carry-on only or checking a bag. This works just like any domestic flight. Use whatever your airline or other benefits allow and what works for you.

When arriving in Canada, baggage claim is after Immigration but before Customs. Immigration queues can vary widely but it would not be at all surprising if you clear Immigration before you luggage hits the carousel.

Neither the US or Canada have exit controls however, most major Canadian airports have a CBP Pre-Clearence Facility which means you will clear US Immigration and Customs in Canada before boarding your flight.

You are allowed to bring Maple Syrup home from Canada, if you purchase it before US Customs, you must declare it. Note, if you purchase it after clearing CBP at a Pre-Clearence facility, you're good to go.

Really, don't worry about it. Thousands of people fly between the US and Canada daily with 0 complication. Don't watch the great show Border Security until after you're home. ;)

**Canada and the US have a broad sharing agreement for criminal records.

  • No criminal record. Passport is currently applied for, but should arrive in plenty of time. Flight isn't determined yet, but I anticipate a direct flight. Destination is Montreal (YUL airport).
    – Elros
    Jan 11, 2018 at 22:15

Flying into Montreal, assuming no connections, you'll fly to Canada as though it's a US flight (except that your US airline will want to see your passport prior to boarding). Carry-on bags are the same as in the US.

In Montreal, you'll clear Canadian customs and immigration. (Be sure to declare all food! This applies going to the US, too.) Declare everything you're intending to leave in Canada, if anything. You'll be admitted and then you can begin your fun in Montreal.

Coming home, go an hour or so earlier than you would in the US as you will clear US customs at Montreal airport. You will land in the US as though you were flying domestically.


Travelling with a carry on in Canada/leaving: ensure your liquids are in marked 100ml containers, no more than 1L in a clear bag.

The last time I went to California, i had alayover from Toronto to LA to San Jose that took about an hour to leave the plane, passing security before getting to the next gate. My connecting flights were booked about 1.5 hours in between. Barely got where I needed to due to confusion of airport layouts.

Check the airport website but most recommend 1-2 hrs for domestic flights and 2-3 for international. Checking in early will speed things up.

Check what you're allowed to bring back into the US but you should be able to bring Montreal style bagels back. If you pick up prepacked smoked meat, the site states you should be able to bring personal amounts back. You can even confirm with TSA before you leave. Try the poutine while you're in the city.

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