An elderly woman ended up more than 2000km away from her intended destination after airline staff failed to realise she had the wrong ticket.
Eighty-year-old Maria Larios, who cannot speak English and is partially blind, was booked to travel from El Salvador to North Carolina - but boarded the wrong plane during a stopover in Houston and ended up in Denver, Colorado.
Ms Larios was traveling to stay with her daughter who is about to undergo brain surgery.
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United Airlines apologised to the family, but Ms Larios's daughter-in-law said her mother was treated like baggage and not like a person.
Mikki Paradis told NBC affiliate WRAL News said she was worried and upset about her mother's treatment.
"They were like, 'Oh yeah. We made a mistake, and she was given the wrong boarding pass and so she's in Denver. But it's not a big deal. We've already got her on a flight to Raleigh, and we gave her a meal voucher.'"
Ms Larios was put on a flight to North Carolina from Colorado, and finally met her daughter almost 12 hours after she left home.