Teenager Leah Callixte has returned home safe and well.
The young woman from Bishops Road, Hayes, got in touch with officers from Hillingdon Police on Wednesday, August 20.
She told police she had seen media coverage and decided to contact them.
Hillingdon Police tweeted news of her disappearance on Tuesday morning and this was picked up by getwestlondon.co.uk, which placed her image on its websites which cover a large part of West London.
No further details of her whereabouts in the meantime have been released.
A police spokesman said: “We would like to thank the media for their support in this case.
“With their assistance we have been able to bring this enquiry to a quick and happy conclusion”