According to
this list:
Code:
E – Staff (Bookable)
G - Groups
O – Discount Economy
Are these descriptions correct?
Do these all earn miles & tier points? (What rate? 25% miles?)
Are they all for economy travel?
Why doesn't O appear in Expertflyer output?
E is now also used by GB Airways as a discounted economy fare.
O is cheap-ish fare bucket for BA staff members to book these H*tl!n€ thingys. O is also used as a 'junk' fare bucket for domestic add-ons on economy fares, so if you have a V class MAN-JFK, and can't get V class on the domestic portion, you can instead book the domestic flight in O, L, N or R class. There is often good availability in O class, so it gets used very frequently.