2026 Holiday Shipping Deadlines in Dillon, CO

If it has to be under the tree, it has to leave Summit County in time. Below are the 2026 carrier deadlines for Christmas delivery — plus the thing the national charts leave out: packages shipping out of the high country travel on mountain roads in December, and the weather does not negotiate.

Our advice is the same every year — build in a buffer. Ship a few days ahead of the dates below and you stop worrying about it.

USPS deadlines

• Thursday, December 17 — USPS Ground Advantage
• Thursday, December 17 — First-Class Mail
• Friday, December 18 — Priority Mail
• Saturday, December 19 — Priority Mail Express

Shipping to Alaska, Hawaii, Puerto Rico or a U.S. territory? First-Class, Priority and Priority Mail Express follow the same dates. Ground Advantage to those destinations runs on a ten-day-or-longer service expectation that varies by location — bring it in early and we will look up the transit time for your specific address.

FedEx deadlines

• Tuesday, December 15 — FedEx Ground Economy
• Monday, December 21 — FedEx Express Saver
• Tuesday, December 22 — FedEx 2Day and 2Day A.M.
• Wednesday, December 23 — FedEx First, Priority and Standard Overnight

FedEx Ground and Home Delivery depend on how far the package travels: five-day transit by December 17, four-day by December 18, three-day by December 21, two-day by December 22, and one-day by December 23.

UPS deadlines

• Monday, December 21 — UPS 3 Day Select
• Tuesday, December 22 — UPS 2nd Day Air
• Wednesday, December 23 — UPS Next Day Air

UPS Ground has no single nationwide deadline. It depends entirely on how far your package travels from Colorado — a box going to Denver and a box going to Maine are days apart. Stop in or call and we will look up the exact transit time for your destination before you commit to a service.

Shipping out of the high country

Here is what the national deadline charts do not account for: your package has to get off the mountain first.

December storms close passes. Carrier pickups out of Summit County can run late or miss a day altogether when I-70 is in bad shape, and that lost day comes out of your transit time, not the carrier’s deadline. A package that would have made it comfortably from a Front Range address can miss Christmas from Dillon on the same ship date.

None of that is a reason to panic. It is a reason to come in a few days earlier than you think you need to. If you are shipping something that genuinely cannot be late, talk to us about which service gives you the most cushion rather than the cheapest rate.

How we can help

• Picking the right service. We ship USPS, FedEx and UPS from one counter, so we can compare all three for your destination and your deadline instead of guessing.
• Packing it properly. Skis, artwork, electronics, wine, ceramics — holiday packages take a beating in peak-season volume. We pack it so it arrives in one piece.
• Last-minute options. If you have waited too long, there are usually still choices. Come talk to us before you assume it is too late.

Come see us before the rush

The two weeks before Christmas are the busiest of our year. Coming in earlier in December means shorter lines, more service options still available, and a lot less stress.

Summit Pack & Ship is in Dillon, serving Silverthorne, Frisco, Keystone, Breckenridge and the surrounding Summit County communities. Give us a call or stop by and we will get it where it needs to go.

Carrier deadlines above are the dates published by USPS and FedEx for the 2026 season. They are carrier recommendations for on-time arrival, not guarantees, and can change. Our counter cut-off on any given day is earlier than the carrier deadline — call ahead if you are shipping on a deadline date.