Under-fire United Airlines has been forced to admit a "horrible failure" which saw a woman allowed to get on the wrong flight in a 28 hour ordeal.
Lucie Bahetoukilae, who speaks no English, thought she was getting on a flight to Paris from Newark, Daily Mail reports.
But she was horrified when she ended up in San Francisco.
After getting onboard the plane, she even showed her boarding pass to a member of the crew after finding someone in the seat she thought was hers.
Instead of spotting the error and helping Bahetoukilae find the correct aircraft, the crew member instead directed her to another seat on the same flight.