Originally Posted by
TechnoTourist
That screenshot was from the last page of a booking where you have a price. You don't need the full fare rules and basis code to get the fare class. After clicking the details popup you'll see the fare class (in this case K). That does not necessarily help understand what it maps to for a different carrier.
Fare class
Actually it is from the same page I was mentioning, you refer to the "Detials" on the right side of the left box. I was referring to the fare mentioned on the right, which entails a couple more clicks but gives more details.
For instance: H1WLCFL, which shows it's H *and* it's Flex.