Priority Mail Delivery Time Calculator (USPS)
USPS Priority Mail takes 2-3 days by the USPS standard. It includes tracking, up to $100 of insurance and free boxes.
By Hamdi Saidani.
Delivery Time (USPS Standard)
2-3 days
Days by the USPS standard, on every route in its directory
Priority Mail Delivery Time Calculator
Enter your ZIP codes to calculate Priority Mail delivery time for your specific route.
Today
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No regular USPS delivery on these days
All USPS holidaysReady to Calculate
Enter the two ZIP codes and the mailing date above, then press "Calculate Delivery Time" to see the expected delivery date for each mail class.
Latest Day to Send Priority Mail
Know when it has to arrive? Enter the date and get the latest drop-off day, counted back from the delivery days USPS publishes for your ZIP pair.
The day it must be delivered.
How Long Does USPS Priority Mail Take to Deliver?
USPS Priority Mail takes 2 or 3 days by the USPS standard. Within your own 3-digit ZIP area or your state, about half the routes are 2 days and half are 3. Mid-distance routes are almost all 3 days, and more than a third of the longest (Zone 8) routes are 2.
USPS says Priority Mail takes 2-3 days. Its service standard is 2 or 3 days depending on the ZIP pair, and it is not a guarantee.
USPS Service Standard by Route:
- About 1 in 5 routes (18%), short and long: 2 days
- Most other routes: 3 days
- Some coast-to-coast routes (e.g. New York to Los Angeles): 2 days, though USPS lists some 5-digit pairs on those routes at 3
Priority Mail Pros & Cons
- Fast 2-3 day delivery
- Free boxes, envelopes, and supplies from USPS
- Flat Rate options for predictable pricing
- Up to $100 insurance included
- Free package pickup
- Full tracking included
- No delivery time guarantee
- More expensive than Ground Advantage
- Delivery times can vary during peak seasons
When to Use Priority Mail
- E-commerce shipments requiring speed
- Business correspondence
- Gifts and personal packages
- Items needing tracking and insurance
- Heavy items using Flat Rate boxes
Priority Mail Pricing
Flat Rate options: Small Box $13.65, Medium Box $24.80, Large Box $34.00 (USPS holiday prices for mail sent from October 4, 2026 through January 16, 2027: $14.65, $25.80, $36.10). Retail rates vary by weight and zone.
Save Money on Priority Mail
Labels bought online at usps.com get lower Commercial prices: a 1 lb Priority Mail package to Zone 1 costs $9.04 online and $11.00 at the counter (July 12, 2026 prices; $9.44 and $11.50 for mail sent from October 4, 2026 through January 16, 2027). The saving varies by weight and zone.
Priority Mail Flat Rate Boxes
Flat Rate boxes ship for one price regardless of weight (up to 70 lbs) or destination. Great for heavy items going long distances.
| Box Type | Price |
|---|---|
| Small Flat Rate Box | $13.65 (holiday $14.65) |
| Medium Flat Rate Box (1) | $24.80 (holiday $25.80) |
| Medium Flat Rate Box (2) | $24.80 (holiday $25.80) |
| Large Flat Rate Box | $34.00 (holiday $36.10) |
| APO/FPO Large Flat Rate Box | $32.55 (holiday $34.65) |
| Flat Rate Envelope | $12.90 (holiday $13.90) |
| Padded Flat Rate Envelope | $14.00 (holiday $15.00) |
| Legal Flat Rate Envelope | $13.25 (holiday $14.25) |
Retail prices from July 12, 2026. Holiday prices are for mail sent from October 4, 2026 through January 16, 2027.
Order free Priority Mail boxes at usps.com/store
Priority Mail Pro Tips
- 1Use a Flat Rate box for heavy items: one price up to 70 lb to any state
- 2Order free supplies at usps.com
- 3Compare Flat Rate and weight-based prices to pay less
- 4Schedule free pickup to save time
Frequently Asked Questions
How long does USPS Priority Mail take?
USPS says Priority Mail takes 2-3 days. The USPS service standard is 2 or 3 days depending on the ZIP pair, not only the distance: some coast-to-coast routes are 2 days while most mid-distance routes are 3.
Is Priority Mail guaranteed?
Standard Priority Mail does not have a delivery time guarantee. Only Priority Mail Express offers a money-back guarantee if the delivery date is missed.
USPS's standard for Priority Mail is 2 or 3 days on every route in its directory; the calculator above shows which one applies to your ZIP pair.
What is included with Priority Mail?
Priority Mail includes: free tracking, up to $100 insurance, free Priority Mail boxes and envelopes from USPS, Saturday delivery at no extra charge, and free package pickup from your address.
How much does Priority Mail cost?
Priority Mail Flat Rate prices from July 12, 2026: Small Box $13.65, Medium Box $24.80, Large Box $34.00, Padded Envelope $14.00.
USPS holiday prices for mail sent from October 4, 2026 through January 16, 2027: Small Box $14.65, Medium Box $25.80, Large Box $36.10, Padded Envelope $15.00.
Retail rates for custom boxes vary based on weight and destination zone.