About 100 people have reportedly had their holidays in Tenerife cancelled by Jet2holidays after a website error.
Prices briefly advertised online for stays at the Hard Rock Hotel were too low, with the operator later cancelling a number of bookings made.
Jet2 apologised to customers affected and said all had received full refunds.
Several people told BBC Radio Leeds they had received a booking confirmation and had even reserved their aircraft seats, only for their holidays to be cancelled.
Customers were given the option to pay the remainder of the actual price, but this was often nearly double the original advertised fee.
Sarah Crosby, a BBC employee from Bramley in Leeds, originally paid £1,800 for her holiday and was then asked for an extra £1,400.
A Jet2 spokesman said: “For a very short period of time, some holidays to the Hard Rock Hotel in Tenerife were incorrectly placed on our website that were not actually available.
“We contacted customers and cancelled these holidays immediately, and we apologise to customers for the error, as well as any disappointment and inconvenience that this may have caused.”
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