I'm looking to book a flight in late July that would bump me to Platinum, as by that point I'll still need about 4k MQMs to go. I'm looking at taking WestJet for a round trip from YVR to MCO, but I can't find how the fare classes are broken down anywhere. I see EconoFlex, Econo, Basic and Premium. But when I select my desired flights, I can't actually see what the fare codes are so I'm unsure of what % of MQMs I'll be getting.

Is there any good way to tell what the fare class is without having to purchase the tickets?