Stick to the Facts
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The Canada–United States border is expected to witness massive traffic, severe delays, and heightened inspections as Memorial Day weekend travel reaches historic levels across North America. U.S. Customs and Border Protection has now issued an urgent warning for travelers crossing the Canada–United States border, especially through busy land crossings in Michigan and Ontario, as a record-breaking forty-five million Americans prepare to travel during the Memorial Day holiday period.
According to the American Automobile Association, Memorial Day weekend travel this year is expected to surpass previous records, with more travelers driving long distances than during the same holiday period in 2025. The increase in traffic is expected to place enormous pressure on highways, airports, and especially the Canada–United States border crossings connecting major travel corridors between Canada and the United States.
The Canada–United States border warning specifically highlights expected delays at Detroit, Port Huron, and Sault Ste. Marie crossings, where U.S. Customs and Border Protection officers are preparing for one of the busiest holiday travel periods of the year.
Canada–United States Border Delays Expected to Surge During Memorial Day Weekend
The Canada–United States border has already started seeing increased traffic volumes as travelers move between Ontario and Michigan ahead of the long holiday weekend. U.S. Customs and Border Protection officials say travelers should expect long vehicle lineups, longer inspection wait times, and heavy congestion at major entry points.
The Detroit-Windsor Tunnel, Blue Water Bridge at Port Huron, and Sault Ste. Marie border crossing are expected to become major congestion hotspots during Memorial Day weekend. Travelers entering the United States from Canada could face significant delays due to increased security screening, customs declarations, and document verification procedures.
CBP’s Office of Field Operations warned that preparation will be critical for anyone crossing the Canada–United States border during the holiday rush. Officials emphasized that even small mistakes involving travel documents, customs declarations, or prohibited items could dramatically increase delays at inspection checkpoints.
U.S. Customs and Border Protection Issues Four Major Warnings
U.S. Customs and Border Protection outlined four major reminders for Memorial Day travelers crossing the Canada–United States border. These warnings are designed to reduce processing delays and help travelers avoid penalties or secondary inspections.
The agency reminded travelers to:
- Carry proper travel documents
- Declare all goods, alcohol, and agricultural products
- Report cash or monetary instruments exceeding $10,000
- Understand that marijuana remains illegal under U.S. federal law
The Canada–United States border warning comes shortly after another federal advisory reminding travelers about mandatory cash declaration requirements.
Proper Travel Documents Required at the Canada–United States Border
CBP says travelers crossing the Canada–United States border should ensure they have valid and approved identification before arriving at border checkpoints.
For U.S. citizens entering through land crossings, accepted travel documents may include:
- Valid U.S. passport
- Passport card
- Enhanced Driver’s License
- Trusted Traveler cards such as NEXUS
Travelers without proper identification could face serious delays or possible denial of entry.
The Canada–United States border continues to maintain strict identity verification procedures, especially during high-volume holiday periods when border security operations become more intensive.
Agricultural Products and Food Inspections Increase at Canada–United States Border
One of the biggest issues travelers face at the Canada–United States border involves undeclared food, plants, and agricultural products. CBP reminded travelers that they must declare all goods entering the United States, including food and beverages purchased in Canada.
The warning includes products such as:
- Fresh fruits and vegetables
- Homemade meals
- Raw meat
- Eggs
- Seeds
- Plants
- Firewood
- Live animals
U.S. Customs officials say some agricultural items may carry pests, diseases, or contaminants that threaten American agriculture and food systems.
Travelers who fail to declare restricted agricultural products at the Canada–United States border may face fines reaching up to $1,000. During busy Memorial Day inspections, customs officers are expected to conduct increased screening of vehicles entering from Canada.
Cash Declaration Rules Tightened at Canada–United States Border
CBP is also warning travelers about strict financial reporting requirements at the Canada–United States border. Anyone carrying more than $10,000 in cash or monetary instruments must legally declare the amount when entering the United States.
The rule applies not only to physical cash but also:
- Traveler’s checks
- Money orders
- Certain negotiable financial instruments
Officials say failure to report large sums could result in seizure, penalties, or criminal investigation.
As travel volume rises sharply during Memorial Day weekend, customs officers are expected to increase enforcement activity regarding undeclared currency crossing the Canada–United States border.
Marijuana Warning Creates Confusion for Canada–United States Border Travelers
One of the most important warnings issued by CBP involves marijuana and cannabis products. Although cannabis is legal in Canada and in several U.S. states, marijuana remains illegal under U.S. federal law.
That means travelers crossing the Canada–United States border cannot legally transport marijuana products into the United States, even if:
- Cannabis was purchased legally in Canada
- The destination U.S. state permits marijuana use
- The amount is small
CBP stressed that all cannabis-related products remain prohibited under federal border laws.
This rule continues creating confusion for many travelers because Canada has legalized recreational cannabis nationwide while several American states have also legalized marijuana at the local level.
However, federal border regulations override state laws at the Canada–United States border.
NEXUS and I-94 Programs Could Help Reduce Canada–United States Border Delays
CBP is encouraging eligible travelers to use trusted traveler programs such as NEXUS to speed up border processing during Memorial Day weekend.
The NEXUS program is designed for pre-approved low-risk travelers frequently crossing the Canada–United States border. Dedicated NEXUS lanes can significantly reduce wait times at some border crossings.
Meanwhile, non-U.S. travelers entering America through land crossings are being encouraged to apply for their I-94 online before arrival using the CBP Link mobile app.
According to CBP, completing the I-94 process in advance may help reduce inspection delays at busy entry points.
Travelers entering under the Visa Waiver Program must still secure an approved ESTA authorization before attempting to enter the United States.
Memorial Day Traffic Expected to Become Extremely Congested
Transportation analytics company INRIX predicts some of the worst traffic congestion of the year during Memorial Day weekend.
Traffic is expected to peak:
- Thursday afternoon
- Friday afternoon
- Monday afternoon
Sunday is expected to be the lightest day for highway travel.
With forty-five million Americans expected to travel, roads approaching the Canada–United States border could experience hours-long delays during peak travel windows.
Travel experts are advising drivers to leave early, monitor live traffic conditions, and remain flexible with travel schedules.
Travel Experts Advise Flexibility During Canada–United States Border Travel Rush
Expedia executive Melanie Fish warned that flexibility will be extremely important during Memorial Day weekend because of the enormous increase in travelers.
According to travel experts, travelers should:
- Build extra time into travel plans
- Prepare backup routes
- Expect delays at customs checkpoints
- Simplify travel itineraries
- Monitor weather and traffic conditions
The Canada–United States border often experiences major congestion during holiday weekends, but this year’s record-breaking travel demand could create even larger delays than normal.
AAA Warns Drivers to Prepare Vehicles Before Traveling
AAA is also encouraging motorists to inspect vehicles before beginning long road trips toward the Canada–United States border.
Last Memorial Day weekend, AAA responded to more than 350,000 roadside assistance emergencies involving:
- Flat tires
- Dead batteries
- Empty fuel tanks
Drivers are being advised to check:
- Tire pressure
- Battery condition
- Engine fluids
- Brakes
- Fuel levels
With traffic congestion expected to intensify across highways leading toward Canada–United States border crossings, roadside breakdowns could cause additional delays for holiday travelers.
Canada–United States Border Faces One of the Busiest Weekends of the Year
As Memorial Day weekend approaches, the Canada–United States border is preparing for one of the busiest travel periods in recent history. Record traffic volumes, increased customs inspections, strict cash declaration rules, marijuana restrictions, and agricultural screening requirements are all expected to contribute to major border delays.
U.S. Customs and Border Protection is warning travelers that preparation will be essential to avoid long wait times and costly mistakes.
With forty-five million Americans expected to travel during the holiday weekend, the Canada–United States border could become one of the biggest congestion points in North America as millions of travelers head toward highways, airports, and international crossings throughout Memorial Day weekend.