(CNN) -- A US Airways flight headed to Philadelphia made an unscheduled landing in Chicago on Saturday after two flight attendants complained of feeling sick, an airline spokeswoman said.
Spokeswoman Michelle Mohr could not say what ailed the attendants.
Flight 658 had taken off from San Francisco and was bound for Philadelphia. The Airbus A320 was forced to divert to O'Hare International Airport in Chicago, where it landed safely at 6 p.m. ET, Mohr said.
Passengers were booked on other flights.
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