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Frontier Flight from Denver to Detroit Diverted to O'Hare After Lavatory Leak Floods Cabin

A Frontier Airlines flight bound for Detroit made an emergency landing at Chicago O'Hare on Wednesday after a lavatory sink leak flooded the main cabin. No injuries were reported.

Frontier Flight from Denver to Detroit Diverted to O'Hare After Lavatory Leak Floods Cabin

A Frontier Airlines flight traveling from Denver to Detroit was forced to divert to Chicago O'Hare International Airport on Wednesday after a leak from a lavatory sink flooded the aircraft's main cabin, according to air traffic control audio.

Frontier flight 3655 departed Denver International Airport shortly after 10:15 a.m. and was en route to Detroit Metro Airport when the pilot declared an emergency. The leak originated at the front lavatory sink and released enough water to flood the passenger cabin, the pilot reported over the radio.

The crew requested permission to land at O'Hare and was cleared to do so. No injuries have been reported.

Frontier Airlines has not yet commented on the incident. The cause of the leak and the extent of any damage to the aircraft remain unclear.

Commercial aircraft lavatory systems are a routine maintenance concern for airlines, and in-flight water leaks—while uncommon—can create slippery conditions and disrupt cabin operations. The diversion adds to a busy day of air travel through O'Hare, one of the nation's busiest hubs.

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