A flight from Germany to Washington has been diverted to Boston because a passenger complained of flu-like symptoms.

Airport spokesman Phil Orlandella says United Airlines Flight 903 was being diverted Friday afternoon after a 53-year-old female passenger told flight attendants about her symptoms.

He says the flight from Munich had 245 passengers and six crew members. The flight had been scheduled to land at Washington Dulles International Airport later Friday.

It isn't yet clear what caused the woman's symptoms or whether she might be suffering from swine flu.