03/23/2015 01:49 EDT | Updated 05/23/2015 05:59 EDT

Watch Out For Ticket Scam, WestJet Warns Customers

CANADA - JUNE 08: A WestJet plane taxi's on the runway of Pearson International Airport in Toronto, Ontario, Canada, Wednesday, June 8, 2005. (Photo by Norm Betts/Bloomberg via Getty Images)

CALGARY - WestJet is warning customers after uncovering a scam involving a deeply discounted airfare offer for travellers headed to an upcoming conference in the United States.

The airline says the scam advertises return flights for up to 50 per cent lower than fares available through the WestJet website.

WestJet says as many as 100 conference-goers accepted the offer and paid for the airfare only to discover their ticket was invalid because it was actually bought with a stolen credit card.

The airline says it has turned over information regarding the scheme to police.

The latest fraud aimed at WestJet follows a telephone scam that involved fraudsters selling questionable holiday packages and suggesting those being called had won 999 WestJet dollars.

Also on HuffPost:

Photo gallery Best Airlines In North America 2014) See Gallery