This page will be updated with all iPad Air 2 sales when they're announced. End dates and links will be added when available. Here is a list of normal iPad Air 2 prices so you compare deals:
iPad Air 2 WiFi-only Prices
16GB - $499
64GB - $599
128GB - $699
iPad Air 2 WiFi + Cellular Prices
16GB - $629
64GB - $729
128GB - $829
12/19/2014 to 12/20/2014: Save 15 percent on any iPad Air 2 model when you use the Target Cartwheel app.
12/09/2014 to ???: Save $50 on any iPad Air 2 model (Wi-Fi Only and Cellular) at Best Buy. UPDATE: Cellular models are $100 off with a new contract from Sprint, Verizon Wireless or T-Mobile (not all models).
04/26/2015 to 05/02/2015: 16GB Wi-Fi + Cellular iPad Air 2 model for only $499.99 ($139 off) at BestBuy.com.