We're only a few days away from the release date of Apple's new iPhone 6 and 6 Plus, which will hit the market on Sept. 19.

Here's a list of the best places to get a good deal on the highly anticipated smartphone.

Starting on Friday, Sept. 19, both the iPhone 6 and iPhone 6 Plus models will be available for purchase at Best Buy when customers purchase a monthly installment plan or two-year contract from either Verizon, AT&T, or Sprint. You can also pre-order the iPhone 6 starting on Friday, Sept. 12. Customers who swap their iPhone 5S on AT&T Next, Sprint Easy Pay, or Verizon Edge will get a free iPhone 6 and receive a $300 Best Buy gift card. In the meantime, customers trading in their iPhone 5S on a two-year plan with AT&T, Sprint, or Verizon will receive a free 16GB iPhone 6 and a $100 Best Buy gift card.

In addition, Best Buy is offering a $125 gift card when you trade in a working iPhone 4S and "standard Trade-In value" for the iPhone 5, reports CNET.com. The promotion lasts from Sept. 19 through Sept. 27.

RadioShack will also begin accepting preorders for the iPhone 6 and iPhone 6 Plus on Sept. 12. Plus, customers will be treated to a free $50 iTunes gift card when they make the purchase in a RadioShack store, up until Sept. 27. Other customers who opt to trade in an older iPhone model in working condition will receive a minimum of $100 and up to $300, depending on the model.

Preorders will begin at 9 a.m. Sept. 12 at Walmart for the iPhone 6 with 16GB of storage and a $15 Walmart e-gift card as an added bonus. The retailer is offering the entry-level iPhone for $179 if someone signs a new two-year agreement with Verizon, AT&T, or Sprint.

iPhone lovers looking to purchase the hot new device from a phone carrier should look into Verizon Wireless, which is offering the phone for free if you trade in your old iPhone and sign a new two-year carrier agreement, reports CNN Money.

Those who redeem the iPhone 6 offer and trade in their old model will receive a gift card with a $200 credit that is then used to buy the 6, which is retailed at $199, reports The Morning Call.

Only working iPhone models 4, 4S, 5, 5S and 5C will be accepted for a trade-off with the 16GB version of the iPhone 6.

Verizon's offer will last until Sept. 30.

Likewise, AT&T is offering a similar deal that allows customers to trade in a mint-condition iPhone 5s for a minimum credit of $300, or an iPhone 4, 4s, 5 and 5c for a minimum credit of $200, reports LaptopMag.com.