The iPhone 11 is 50% off at AT&T, which drops the monthly device payment for the phone from $20 to $10. Opening a new line of service and activating the phone on an Unlimited plan is required. This deal brings the total price of the iPhone 11 to $300. That's the best price we could find for the phone on AT&T by over $200. As a bonus, If you trade in an eligible device, you’ll receive $150 in additional bill credits that will drop the monthly device payment even further to $5. Eligible trade-ins are listed in detail at AT&T. Shipping is free. Sales tax is charged in most states.