IKEA: Boxing Day Sale – 10% Off Online Order of $350 or more (Dec 26) December 26, 2017 IKEA is having a Boxing Day Sale. Save 10% off your online order of $350 or more. Some exclusions apply. Offer is valid online-only until Wednesday, December 27, 2017 at 3am ET. Click here to visit IKEA’s website for more detail.