An Air France flight bound for Detroit was diverted to Montreal on Wednesday, May 20, 2026, after officials discovered a passenger from the Democratic Republic of Congo had boarded the aircraft in error. The diversion follows new U.S. travel restrictions aimed at containing an ongoing Ebola outbreak in central Africa.
Travel Restrictions and the Air France Diversion
cluster (priority): The Guardian
The incident involving Air France Flight 378 prompted an immediate response from U.S. authorities. After the flight departed Paris, Customs and Border Protection (CBP) officials determined that a passenger from the Democratic Republic of Congo (DRC) was on board, violating temporary entry rules established earlier this week. The agency stated that it “took decisive action” to prevent the flight from landing at Detroit Metropolitan Wayne County Airport, forcing the aircraft to redirect to Montreal, Canada.
“Air France boarded a passenger from the Democratic Republic of Congo in error on a flight to the United States,” the CBP said in a statement. “Due to entry restrictions put in place to reduce the risk of the Ebola virus, the passenger should not have boarded the plane.”
While passengers on the flight were initially told there were no technical issues, the reality of the situation became clear shortly after the change in course. Deborah Mistor, a passenger on the flight, recounted that the captain eventually clarified the nature of the diversion: “I think enough people must have been questioning what was going on because 30 minutes later, [the captain] came back on and said that he wanted to confirm that there was nothing wrong with the plane, there were no technical difficulties, that it was strictly because of US authorities not allowing us to land in the US.”
Public Health Protocols in Canada and the U.S.
cluster (priority): NBC News
Upon landing at Montreal Pierre Elliott Trudeau International Airport, the situation was handled by Canadian authorities. Craig Currie, a spokesman for the Public Health Agency of Canada (PHAC), confirmed that the traveler was evaluated upon arrival. “A Public Health Agency of Canada (PHAC) quarantine officer assessed the traveller and determined they were asymptomatic,” Currie told the Detroit Free Press. “The traveller has departed back to Paris.”
The U.S. government has implemented a 30-day travel restriction for individuals without U.S. passports who have been in the DRC, Uganda, or South Sudan within the previous 21 days. According to a notice submitted to the Federal Register, the Department of Homeland Security and the CDC are directing all U.S.-bound flights carrying travelers who have recently visited those three nations to land at Washington-Dulles International Airport. This consolidation is intended to focus public health resources and implement enhanced screening measures.
The Scale of the Ebola Outbreak
Flight to Detroit diverted after Congolese passenger boarded ‘in error’
The current outbreak, primarily involving the Bundibugyo strain of the virus, has raised significant alarms. As of May 20, 2026, the World Health Organization reported approximately 600 suspected cases and 139 suspected deaths. The WHO declared the situation a public health emergency of international concern on May 17.
The international response has included the transfer of an American doctor, Peter Stafford, to Germany after he tested positive for the virus while working in the DRC. A missionary group associated with Stafford reported that he remains “critically ill but not acutely deteriorating.” His family members are currently quarantining in Germany as a precautionary measure.
Debate Over Travel Bans as a Containment Strategy
cluster (priority): news.google.com
The implementation of travel bans has drawn criticism from some medical experts who argue that such measures may not address the core challenges of epidemic control. Dr. Jeanne Marrazzo, chief executive officer of the Infectious Diseases Society of America, expressed skepticism regarding the efficacy of these restrictions during a news conference on Thursday, May 21.
“Policies that single out individuals, not for any scientific or medical reason, but because of their citizenship won’t prevent outbreaks from spreading.”Dr. Jeanne Marrazzo, chief executive officer of the Infectious Diseases Society of America
The World Health Organization has noted that while the risk of a global outbreak remains low, the risk of transmission within the DRC and neighboring countries is high. As the 30-day window for the new U.S. travel restrictions begins, federal agencies continue to coordinate with airlines to manage passengers arriving from the affected regions. Air France has acknowledged the new requirements, stating that it is required to comply with the entry rules of the countries it serves.
