There's a lot more that goes into the pricing of an airline ticket than simple math. Unless you look at the algorithm being used to calculate the airfare, there's no way for you to accurately tell why a particular ticket is being priced so. And since Jet Lite and Konnect aren't merged yet, they might have slightly differing structures at this point which leads to the sometimes slightly different prices. Also, you might want to check on the airlines websites directly to see if there's still a price difference.