Currently there are two coupons from Etihad Airways good for 15% off the airfare (excluding taxes, fees and surcharges) for flights in Economy or Business Class.
The code is not really all that useful for cheap economy class tickets, as it is applied to the base fare which is a small portion of the total cost on these cheap tickets. For business class tickets, on the other hand, it might be easier to find a good deal or two:
15% off Economy Class flights
The coupon for Economy Class flights must be used for departures between 1. May and 30. June 2019. The return flight must be completed by 31. July at the latest. The discount is only granted on the Deal and Saver fares.
15% off Business Class flights
The voucher for Business Class flights must be used for travel between 1. July and 31. August 2019. The return flight must be completed by 31. August at the lastest. The discount is only granted on the Saver fare.
A coupon code must be entered directly into the search field as a Promotion code:
The price in the overview is then reduced by the discount. Fares to which the discount applies are marked with a star.
The discounted value is then again shown in the price summary later on in the booking process.