Shipping Denver to Seattle (2026)
Shipping Denver to Seattle (2026)
Denver, CO and Seattle, WA are approximately 1,320 miles apart, a route that crosses the northern Rockies and Pacific Northwest. Seattle is a major West Coast port city and tech hub, while Denver serves as the gateway to the mountain West. This corridor sees consistent shipping volume, supported by strong carrier infrastructure through the I-25 and I-90 corridors.
Carrier Comparison
| Carrier | Service | ~Rate (3 lb) | Delivery Time |
|---|---|---|---|
| USPS | Priority Mail | ~$11.50 | 2-3 days |
| USPS | Ground Advantage | ~$8.00 | 4-5 days |
| UPS | Ground | ~$13.20 | 3-5 days |
| UPS | 2nd Day Air | ~$27.00 | 2 days |
| FedEx | Ground | ~$12.80 | 3-5 days |
| FedEx | Express Saver | ~$25.50 | 3 days |
| FedEx | 2Day | ~$30.20 | 2 days |
Cheapest Option by Package Size
- Under 1 lb: USPS First-Class Mail at ~$4.20 is the cheapest option for lightweight items heading to Seattle.
- 1-5 lbs: USPS Ground Advantage at ~$7.00-$10.80 provides the best value, arriving in 4-5 days.
- 5-20 lbs: FedEx Ground and UPS Ground are competitive at ~$14.50-$26.00. Actual rates depend on package dimensions and whether your shipment triggers dimensional weight pricing.
- 20-50 lbs: FedEx Ground at ~$28.00-$51.00 typically undercuts UPS by a small margin on this route.
- Over 50 lbs: Freight services starting at ~$60.00 are the best option. Both Denver and Seattle have strong freight terminal networks.
Delivery Time Comparison
| Service Level | USPS | UPS | FedEx |
|---|---|---|---|
| Economy/Ground | 4-5 days | 3-5 days | 3-5 days |
| Expedited | 2-3 days | 3 days | 3 days |
| 2-Day | N/A | 2 days | 2 days |
| Overnight | Priority Mail Express 1-2 days | Next Day Air 1 day | Standard Overnight 1 day |
Ground shipments from Denver to Seattle route northbound through Wyoming and Montana or westbound through Utah and Oregon, depending on the carrier’s network. The I-90 corridor through Montana and Idaho is the most common path. Transit times can vary between 3 and 5 days for UPS and FedEx, with the longer end more common during winter months.
Tips for This Route
- Expect weather variability. This route crosses mountain passes in both the Rockies and Cascades. Winter storms can disrupt ground transit from November through April. Allow an extra 1-2 days during winter months.
- Waterproof your packaging. Seattle receives significant rainfall, and last-mile delivery in the Pacific Northwest often means packages are exposed to wet conditions. Use poly mailers or plastic-lined boxes for moisture-sensitive items.
- Use USPS Priority Mail for time-sensitive items. At ~$11.50 for a 3 lb package, Priority Mail cuts delivery down to 2-3 days compared to 4-5 days for Ground Advantage. The premium is modest for the time saved.
- Consider Amazon logistics alternatives. If you sell through Amazon, the company maintains fulfillment centers in both Denver and Seattle. Using FBA or SFP can simplify this route for e-commerce sellers.
Key Takeaways
- Denver to Seattle covers 1,320 miles with ground transit averaging 3-5 days across carriers.
- USPS Ground Advantage is the most affordable option for packages under 5 lbs at ~$7.00-$10.80.
- Two mountain range crossings (Rockies and Cascades) make winter delays a real factor from November through April.
- USPS Priority Mail at ~$11.50 for a 3 lb package provides the strongest cost-to-speed value on this route.
Next Steps
- USPS Rate Guide — Find exact USPS pricing for your Denver-to-Seattle package.
- Compare Shipping Services — See all carrier options compared for your shipment details.
- Best Shipping for Small Packages — Explore affordable shipping for lightweight parcels.
Shipping rates are estimates based on published carrier rates and may vary. Verify current rates with your carrier.