MAN-JFK EI R CLASS UK945.64pounds

Mentioned here. Problem is it might be an Economy fare labeled or applied wrongly by Expedia. Fare basis is RL2GUSGD (applys for Economy Class).

Aer Lingus is trying to change its fare structures. It looks like R is Economy before Oct 1, and R becomes Business after Oct 1. All R Economy fares are supposed to retire after Sep 30th, and R Business fares come into effective after Oct 1st. Expedia allows a purchase into R Business (after Oct 1st) with R Economy fare basis (valid till Sep 30th), which isn't suppose to happen. EI's website or ITA doesn't allow it to happen.

It does charge the correct YQ and APD for Business though. A confusing mess.