Originally Posted by
EWRMAN
If I book a flight on united.com and it is flown on Brussels airlines metal I can see what fare class United treats it as, in this instance K. However I've read that for PQM the fare class which is important is the Brussels airlines fare class.
How do find out what a UA K translates to on Brussels?
The only sure fire way is to call the operating airline after booking. And to do this within the 24 hour cancellation window if you want a no cost way to change your mind.
As a guess K on UA codeshare will translate in many cases to the lowest economy fare on the operating airline and potential non-mileage earning.