U.S. border preclearance
Montréal–Trudeau provides border preclearance for passengers bound for the United States. This means that you will be screened by a U.S. Customs and Border Protection (CBP) officer before departure, and will not have to submit to any other formalities when arriving in the United States.
You must have all the required documentation with you, including a valid passport. Note also that you cannot take certain products, such as fruit from other countries, into the United States.
NEXUS and Global Entry members enjoy the advantage of having access to a special express line through security checkpoints and in the U.S. border preclearance area where they can use Automated Border Control kiosks.
Note that in all cases, CBP officers are empowered to request a secondary inspection. You will be directed to an adjoining room and, if need be, your checked luggage will be recalled.
U.S. Customs and Border Protection will no longer process inadmissibility waivers at YUL Montréal-Trudeau. Travelers may continue to apply for inadmissibility waivers at the U.S. Embassy in Ottawa or at U.S. Consulates. In addition, CBP will continue to process the I-192 form, the I-212 form and the I-824 form at designated ports of entry. Waiver applicants are encouraged to submit their applications online via e-SAFE.
For more information, see the U.S. Customs and Border Protection Web site.
As part as the Cannabis Act, in effect as of October 17, 2018, passengers should visit the Government of Canada site for more information on cannabis guidelines and travel abroad.