A glitch on the Mokulele Airlines Web site yesterday resulted in about 160 interisland tickets mistakenly being sold for $12, substantially below the carrier's lowest fare of $39.

Customers who bought the cheap tickets are being notified that they can rebook the ticket at the $39 fare, or receive a refund, a Mokulele spokesman said.

The glitch was "quickly corrected," but not until about 160 tickets were sold, the spokesman said. Customers discovered the error when they entered the final key stroke to pay for the tickets on the Web site. The actual cost of the ticket was zero, with a $12 charge added on for taxes and fees.