A businessman flew from Britain to Amsterdam on his two-year-old daughter's passport.
Mark Coshever, 29, was allowed through airport security and on to a plane after picking up the wrong passport at home.
He did not realise the mistake until his easyJet flight from Luton touched down at Amsterdam.
Mark, 29, said: "I was shocked that I could fly to a major international airport on a child's passport."
Airline staff had twice examined his passport and failed to notice the photo was that of toddler Alicia.
Mark, from Rayleigh, Essex, added: "Fortunately I had my driving licence, which has my photo."
A spokesman for easyJet said: "Staff misread Mr Coshever's passport and have been disciplined."
.......... oooooooh did they get a good spanking )c: