AUSTIN, Texas – With Christmas right around the corner, many people are making a last-minute dash to the post office to ensure presents will make it under the tree on time.

Post offices nationwide are working tirelessly to make sure those packages make it to their destinations before Dec. 25.

The holidays always brings with it the busiest shipping season of the year. The U.S. Postal Service expects to deliver about 15-billion pieces of mail during the holidays. 200 million packages are delivered each week starting from Dec. 11 through Christmas Eve.

For those planning to stop by the post office they should expect to see long lines. Some lines can be seen spilling out of the doors.

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Additional post office workers are scheduled each year to make sure everything flows smoothly and quickly.

Considering the high volume of people coming in, the postal service asks people to make sure they have everything they need by the time they get to the booth.

"People come in and they don't know how to mail their item and don't know which service they want to utilize, which is fine. Still, have your package ready, packaged, taped, addressed and ready to go,” said Amber Evans with the U.S. Postal Service. “So, we can give you different options when you get up here and it'll be a lot quicker."

Dec. 20 is the last day to use "Priority" and "First-Class" mail that will ship nationwide, including Hawaii and Alaska.

If you miss this deadline, you'll have to use "Priority Express" to make sure packages make it by Christmas.

2017 Holiday shipping deadlines

  • Dec. 20: Priority Mail
  • Dec. 20: Hawaii to Mainland Priority Mail Express
  • Dec. 20: Alaska to Mainland Priority Mail and First-Class Mail
  • Dec. 21: Alaska to Mainland Priority Mail Express
  • Dec. 22: Priority Mail Express