Frontier flight from Denver to Detroit diverted to O'Hare for leaking lavatory

A Frontier Airlines flight traveling from Denver to Detroit was diverted to Chicago O’Hare International Airport after a lavatory leak flooded the cabin, according to CBS News. The diversion involved a single Frontier Airlines aircraft with passengers and crew aboard at the time of the incident, and it occurred while en route to Detroit Metro Airport before landing at O’Hare.

CBS News reports that air traffic control audio captured the pilot declaring an emergency as the lavatory sink at the front of the aircraft began to leak and water spread into the main cabin. The crew was instructed to proceed to O’Hare, where the diversion was completed. There were no reported injuries at the time of landing according to the CBS News coverage.

CBS News Chicago and associated reporting noted that Frontier flight 3655 departed Denver International Airport shortly after 10:15 a.m. local time and was en route to Detroit Metro Airport when the diversion occurred. The outlet indicated the diversion was prompted by the lavatory leak and cabin flooding, and that landing at O’Hare occurred without injuries being reported.

ABC7 Chicago contributed to the reporting by indicating that Frontier Airlines was contacted for additional information, but the material provided did not include further details about the aircraft type, exact model, or the number of passengers and crew onboard. ABC7 Chicago’s coverage focused on the administrative aspects rather than technical specifications of the aircraft.

ClickOnDetroit | WDIV Local 4 and other outlets in the supplied material did not extend the incident with extra operational specifics about the flight, but CBS News and ABC7 Chicago together established the basic sequence: a diversion to Chicago O’Hare following a cabin-flooding lavatory issue, with no injuries reported at the time of landing.

Beyond the Frontier diversion itself, the material notes that other outlets in the collection discuss aviation topics unrelated to this incident. Markets.BusinessInsider.com details a separate product launch for a smart carry-on luggage concept and a general airport-safety moment, while Daily Mail and Ekantipur cover unrelated aviation events such as runway disruptions and a Kathmandu hail event, respectively, and do not add detail about the Denver-to-Detroit diversion.

There is also mention of Detroit Metro Airport changes in passenger pickup policies and curbside operations as part of the broader reporting cluster. ClickOnDetroit | WDIV Local 4 describes a shift toward a zero-tolerance policy on parking outside terminal curbsides and the opening of a dedicated cell phone lot to improve traffic flow for arriving passengers; however, these items are presented as separate local developments and are not explicitly linked to the Frontier diversion.

The report notes that, as of the CBS News and ABC7 Chicago material, there were no specified injuries, no disclosed aircraft type or exact final disposition of the flight after landing, and no published time of arrival beyond the flight’s departure time from Denver and its Denver-to-Detroit routing. CBS News Chicago described the event as a local breaking news item, without verification of causes or outcomes beyond the lavatory leak and diversion.

In sum, CBS News and CBS News Chicago report that Frontier Airlines flight 3655 diverted to O’Hare due to a leaking lavatory that flooded the cabin, with an emergency declaration and landing at O’Hare, and no injuries reported at the time. The material provides limited operational or technical details about the aircraft and does not establish the final disposition or subsequent actions taken by Frontier or authorities.