U.S. Border Officials Warn Travelers of Delays Ahead of Memorial Day Weekend

(MICHIGAN) – U.S. Customs and Border Protection issued a travel warning ahead of Memorial Day weekend for the Michigan land crossings at Detroit, Port Huron and Sault Ste. Marie, telling travelers to expect delays as holiday traffic builds.

CBP said heavier volumes are expected at those border crossings and urged travelers to arrive prepared. The agency tied the advisory to the Memorial Day travel surge, with motorists likely to face the longest waits during the busiest parts of the weekend.

Officials said the heaviest traffic is expected on Thursday and Friday afternoon. Monday afternoon is also expected to be heavy, while Sunday was identified as the lightest day for people who can adjust their plans.

The warning also centered on border compliance steps that often slow crossings or trigger penalties. Travelers need proper travel documents and must declare goods brought across the border.

That includes alcohol, tobacco, food and agricultural items. CBP also said travelers must declare cash or other monetary instruments over $10,000.

Failing to declare prohibited or restricted items can bring fines of up to $1,000. CBP also told travelers to use its online reporting portal when required.

The agency framed the advisory around three of Michigan’s busiest land-border gateways with Canada. Detroit, Port Huron and Sault Ste. Marie all sit on routes that can swell quickly during long holiday weekends, when routine crossings mix with vacation traffic and day trips.

CBP’s notice did not announce any change in travel rules for the weekend. It repeated the document, declaration and reporting requirements that already apply at the border, while warning that heavier volumes can turn minor paperwork problems into longer delays.

Proper documents remain the first checkpoint. Travelers who arrive without the documents needed for their trip risk holding up their own crossing and the line behind them.

Declarations are another pressure point. Goods, alcohol, tobacco, food and agricultural items all have to be declared, and the same applies to cash or monetary instruments above $10,000.

CBP paired that reminder with a financial penalty that can reach $1,000 for failing to declare prohibited or restricted items. The agency’s message was straightforward: border traffic is expected to rise, and mistakes that might already cause inspection delays become more disruptive during holiday peaks.

The online reporting portal also drew mention in the warning, a sign that some travelers will need to complete required declarations digitally before or during their crossing process. CBP did not expand on which travelers would need to use the portal in the notice provided here, but it directed people to follow that requirement when it applies.

Timing is likely to shape wait times as much as documents do. Thursday and Friday afternoon often pull together commuters, holiday departures and shoppers, while Monday afternoon tends to compress return traffic into a narrow window.

Sunday, by contrast, was described as the lightest day for travelers with flexibility. That does not mean crossings will be empty, but CBP singled it out as the best option for avoiding the densest Memorial Day movement at Michigan’s land ports of entry.

Detroit is expected to see the warning play out at one of the state’s main border gateways, where holiday traffic can stack up quickly. Port Huron and Sault Ste. Marie were included in the same advisory, putting all three crossings in the focus of CBP’s Memorial Day planning message.

The advice applies to more than vacationers. Anyone heading across the border for shopping, family visits or short holiday trips faces the same document and declaration rules, and the same risk of delay if they arrive unprepared.

Travel requirements themselves were part of the agency’s public guidance. CBP directed travelers seeking current border wait times and travel requirements to [CBP travel information](CBP.gov/travel).

That resource is where the agency said travelers should check conditions before leaving for the border. During a holiday weekend shaped by predictable surges, current wait-time information can help people decide whether to leave earlier, travel later or shift a crossing day entirely.

CBP’s Memorial Day warning did not rely on broad language. It pointed to the practical issues that most often complicate border travel: missing documents, undeclared goods, undeclared cash, restricted items and required use of the online reporting portal.

At the Michigan crossings named in the notice, the agency’s message was clear enough without embellishment. Expect delays, carry the right documents, declare what is being brought across, and check current conditions before heading to Detroit, Port Huron or Sault Ste. Marie for the Memorial Day weekend.