AUSTRIAN has just launched a one day voucher offer that is good for 10% off of any OS operated flight within Europe between November 1 and March 15, 2016.
The voucher will expire on October 31 at midnight so as of this writing you have about 22 hours to book your trip to save the 10%.
Keep in mind that the coupon discount is good off of the base fare and not the taxes or fees! Flights must have OS flight numbers. Codeshares are not eligible.
Here is the link for the Promo, or otherwise simply enter ‘Halloween2015’ in the voucher field of the OS booking webpage.