Here it is:
Econo
One free bag
$75 change/cancel fees
Flex
One free bag
Ability to pay extra for premium economy seats
$50 change/cancel fees
Plus
Two free bags
Complimentary seat selection
No change fees
$50 cancellation fee
Priority screening
Sample fares (YYC-YYZ)
Econo: $229
Flex: $249
Plus: $496
The new site will also have multi-city reservations...
Page 41:
http://www.westjet.com/pdf/investorM...day-121204.pdf