How much will it cost to fix a cracked iPhone 6s Screen?

How much will it cost for a screen and repair?

Apple warranty doesn't cover that, so expect to pay $129 plus taxes.

Well,
On an average it takes around $109 - $150 depending on which phone you have and if your device is still under warranty or not. Keep in mind that if you get the iPhone repaired at any of the independent shops, your warranty of Apple will be void.

You can get a repair kit in around $50-$80, which seems to be a lot lesser but it is bit risky to do it yourself, unless you are an expert in handling compact wirings and structure.
You can buy the screen at the Amazon, eBay or HCQS