SAVE $90: The DJI Mini 4K drone is on sale for $209 at Amazon with the on-page coupon, down from the list price of $299. That's a 30% discount and the lowest we've seen from Amazon. $209 at Amazon $299 Save $90 with on-page coupon Airline prices are high, and if you're not planning to fly this summer, that's understandable. But there's a different option to take to the skies, and it probably costs much less than those domestic flights you were considering. Check out this drone deal at Amazon that'll be a fun summer hobby. As of May 14, the DJI Mini 4K drone is on sale at Amazon for $209 with the on-page coupon, down from the list price of $299. That's a 30% discount and the lowest we've seen from Amazon. The DJI Mini 4K drone is a great option for both beginners and expert drone pilots who are looking for something lightweight and exceptionally portable. The drone can easily fold up and fit into the palm of your hand and it weighs under 249 grams.…