Does booking class H earn 100% in LH?

Yes. H is 100% if you mean LH on M&M but even if you mean something else, it still is probably 100%. H is one of the highest economy classes behind YB and G.

deleted, found my answer!

KiwiFlyer - AC discontinued Z class as an Economy bucket some time ago. It's recently reappeared, but is now a Discounted Business fare bucket on some routes and a Web Fare Business on others. Their new structure looks like -

J CABIN - J C Z as revenue, I for Aeroplan FF upgrades, D for rewards.
J C Z eliglble to earn COS bonus, but there are different policies for different routings in the internal AE scheme. As such, I strongly suggest a check of host FF schemes information to see if AC will pay a C COS on a route you are interested in, in particular.

Y CABIN - Y M U B H V Q L A R K N G P E T are revenue, W for rewards.
Classes that will need checking via host FF schemes as far as mileage earning potential goes are R K N G P E T, on both international and internal North American routes. Carribbean routes also have different earning policies.

S class seems to have gone as AC has dropped their Club Class product.

OP updated

One update on UA,

X, internally known as (NF) is a fare class for Upgraded first rather than Economy which would be XY within UA.

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Review your itinerary Flight From To Date Depart Arrive Stops Duration Aircraft Fare

AC415 Montreal, Trudeau (YUL) Toronto, Pearson Int'l (YYZ) Mon Nov-19 14:00 15:25
0 14hr15 77W Leisure S

is there a new S class on ac?

Yes - recently appeared. Earns 100% EQM in the internal Aeroplan scheme.

"R" class on LH/OS/LX?
 

Anybody knows what "R" class is used for on LH/OS/LX? I've seen that it's business, however I only knew the paid booking classes CDZ (& J on Swiss) + I for non-paid travel (e.g. upgrades, awards) in business. Maybe this is for LH/OS/LX employee travel in business?

R is indeed a travel industry rate - not able to be booked by general public.

So my travel agency must be very clever :). Thanks for your answer, Kiwi Flyer.

Clever if you are happy not earning points. If I was offered C with no points, or Y with points, I would probably take C.

Hmm, I am pondering if that is a true FT'er response or not. :confused: :D

Does anyone have the official info for CA and FM yet? According to united.com, it looks likeBut we all know how accurate united.com tends to be. Plus, I don't know the upgrade/award seat codes.

SK update:

-Y,S,B are now Economy Extra for both intra-Europe and Intercontinental.
-Y,S,B should be removed from the Economy Class line as they are featured on the Economy Extra line above (Economy Extra is a distinctive service class with separate cabin on SK).
-The order of booking classes for Economy Extra should be Y, S, B (B is used for Economy Extra Restricted and has the least availability of the three).
-W and lower could be moved to a new line called "Economy (discounted)". Same service class as Economy but typically earn less points in most programs (25% mileage in SKs own EuroBonus).
-The A class should be first in line for Business Class. It is only available long haul and is a first class priced booking class which will guarantee any traveller a seat on any SK long haul flight up to departure. The availability of A-class is always 0 in GDS-systems.