(WASHINGTON DULLES INTERNATIONAL AIRPORT, VIRGINIA) – U.S. Customs and Border Protection officers seized more than $70,000 in unreported currency from three travelers at Dulles Airport over three days, a reminder that cash rules at U.S. airports are enforced even on routine international trips.

The seizure took place at Washington Dulles International Airport, where arriving passengers and people moving through the airport were involved. CBP officers can detain undeclared currency when travelers do not properly report it, and that includes cash carried in luggage, on a person or split among different bags.

The three travelers were not identified, and no nationalities were released. CBP also did not provide a day-by-day breakdown of the seizure, only that the money was found over a three-day stretch.

The timing was left vague as well. The exact dates were not included, which matters because airport enforcement stories often move quickly from one inspection to the next. In this case, the only firm number is the amount seized: more than $70,000.

The query attached to the incident mentioned nearly $100,000, but the available details do not support that figure. The documented amount is lower, and the discrepancy raises a simple reporting question: where did the higher number come from, and was it tied to a separate stop or a different total?

CBP inspections at Dulles follow the same federal rules used at other major U.S. airports, including JFK, Miami, Dallas-Fort Worth and Los Angeles. Travelers who enter the country carrying large amounts of cash can be questioned about the money’s source and purpose. If it is not reported properly, officers can detain it.

That rule matters well beyond one airport stop. U.S. law does not ban travelers from carrying cash, but it does require reporting large sums when entering or leaving the country. The standard reporting threshold is $10,000 in currency or monetary instruments for a family or individual crossing the border. Officers can seize money if they believe the reporting requirement was ignored or evaded.

A seizure like this does not affect airline miles or elite status, but it can ruin a trip fast. Travelers paying cash for tickets, hotels or ground transport sometimes assume a suitcase full of money is enough to avoid paper trails. At the border, that assumption can become expensive. CBP can ask about the money, count it, and hold it if the declaration is missing or incomplete.

Airports with heavy international traffic tend to see more of these cases because they handle more arrivals, more connections and more baggage checks. Dulles is one of the region’s main international gateways, with long-haul flights from Europe, Asia, Africa and the Middle East passing through daily. The same rules apply at every U.S. port of entry, but the volume at a hub like Dulles increases the odds of enforcement actions surfacing there.

Travelers carrying cash should keep the paperwork simple and the answer ready. Declare amounts above $10,000 when required, keep receipts if the money came from a legal source and do not split cash among companions to avoid reporting. Border officers look at the total value carried by the traveler and, in some cases, the group.

Those headed through Dulles on international trips should also expect routine questions about luggage, customs forms and the purpose of the visit. A cash declaration is separate from airline check-in and separate from passport control. It is part of the customs process, and it applies whether the traveler is landing in the U.S. or connecting after an international arrival.

Anyone flying into the United States with large sums of cash should have the amount counted, reported and documented before landing. At Dulles and every other major airport, undeclared currency can be detained on the spot.