Star Alliance member brussels airlines is currently offering a 10% discount on an Intra-Europe fare when you sign up to receive their “mybrusselsairlines” newsletter.
Looking over their intra-Europe fares, the savings can amount anywhere from 15 to 30+ Euros depending on the specific destination. The discount applies to the base fare, and does not apply to the taxes on the ticket.
Once you sign up for the the newsletter, a one-time coupon code will be issued that you will need to enter when searching for a fare.