Priority Mail Express Flat Rate Envelope and Box

Priority Mail Express® is the cheapest USPS® overnight delivery

Priority Mail Express® is the fastest service USPS® offers, but it’s only overnight to and from urban areas, taking 2 days for rural areas

USPS Priority Mail Express Flat Rate EnvelopesScissorsPotted sansevieria plant
  • 📦

    The fastest service USPS® offers

    Priority Mail Express® is the fastest delivery the Postal Service® offers, with overnight delivery in most cases.

  • Overnight delivery in urban areas, 2 day for rural

    Be aware that Priority Mail Express® is only overnight delivery to and from urban areas; rural areas take 2 days.

  • 📡

    Free package tracking included

    Priority Mail Express® shipments include full tracking, so you and your recipient can track it every step of the way.

  • 💥

    $100 insurance coverage included for free

    Priority Mail Express® postage bought with Pirate Ship includes $100 of USPS® insurance for free.

  • 👍

    Guaranteed delivery speed with money-back

    Priority Mail Express® is guaranteed to be delivered within the time marked on the label, with a refund if it's late.

  • 💵

    Save up to 13% by using Pirate Ship

    Commercial Pricing for Priority Mail Express® will save you up to 13% compared to paying retail prices.

Priority Mail Express Flat Rate Envelope

Get the cheapest Priority Mail Express® rates

USPS® offers two pricing levels for Priority Mail Express®; Retail and Commercial. Pirate Ship passes-through the best rates available for all USPS® services, including Commercial rates for Priority Mail Express®, which can save you up to 13% compared to retail prices.

If your package fits into one of the three Flat Rate Envelopes that USPS® offers for Priority Mail Express®, you'll save the most money by using those packaging options instead of your own. You can order Flat Rate packaging for free at USPS.com/supplies or pick them up at your local Post Office. Otherwise, it's not required to use a special box. You can use your own packaging!

Weight
Up to, not over
0-150 miles
L, 1 & 2
150-300 miles
Zone 3
300-600 miles
Zone 4
600-1000 miles
Zone 5
1000-1400 miles
Zone 6
1400-1800 miles
Zone 7
1800+ miles
Zone 8
Territories
Zone 9
Flat Rate Envelope
$21.98
$21.98
$21.98
$21.98
$21.98
$21.98
$21.98
$21.98
Legal Flat Rate Envelope
$22.09
$22.09
$22.09
$22.09
$22.09
$22.09
$22.09
$22.09
Padded Flat Rate Envelope
$22.46
$22.46
$22.46
$22.46
$22.46
$22.46
$22.46
$22.46
½ lb
$21.98
$21.98
$22.69
$24.66
$26.39
$28.02
$29.87
$36.44
1 lb
$21.98
$22.94
$27.63
$30.93
$32.03
$33.99
$35.04
$42.76
2 lb
$21.98
$24.48
$30.12
$33.70
$35.09
$37.15
$38.45
$46.92
3 lb
$21.98
$25.62
$33.86
$38.78
$40.46
$42.86
$44.05
53.72
4 lb
$21.98
$27.29
$36.10
$43.86
$45.58
$48.26
$49.55
$60.47
5 lb
$22.98
$30.64
$38.49
$46.92
$51.23
$53.67
$55.12
$67.22
6 lb
$26.22
$34.99
$44.49
$53.18
$55.95
$58.82
$60.63
$73.95
7 lb
$28.74
$38.34
$50.98
$58.15
$60.78
$64.25
$66.55
$81.21
8 lb
$31.56
$42.06
$55.24
$62.53
$65.97
$69.75
$71.66
$87.42
9 lb
$32.80
$43.73
$57.29
$66.89
$71.09
$75.14
$77.15
$94.14
10 lb
$34.52
$45.59
$59.48
$69.89
$74.76
$79.01
$81.02
$98.82
11 lb
$35.94
$50.24
$65.48
$73.62
$77.24
$81.57
$83.64
$102.04
12 lb
$37.87
$53.77
$69.58
$77.52
$80.72
$85.29
$87.36
$106.59
13 lb
$40.08
$57.26
$72.78
$81.06
$84.10
$88.81
$92.44
$112.76
14 lb
$41.92
$60.78
$75.64
$84.21
$87.64
$92.54
$96.24
$117.41
15 lb
$43.27
$64.16
$78.84
$87.78
$91.21
$96.24
$100.11
$122.12
16 lb
$45.16
$67.83
$81.94
$91.16
$95.17
$100.38
$103.45
$126.22
17 lb
$46.91
$71.36
$85.05
$94.51
$98.37
$103.68
$106.37
$129.74
18 lb
$48.79
$74.76
$88.06
$97.85
$101.79
$107.35
$110.17
$134.41
19 lb
$50.52
$78.28
$91.07
$101.14
$105.33
$110.97
$113.84
$138.87
20 lb
$52.68
$81.81
$95.58
$106.08
$109.42
$115.30
$118.92
$145.08
21-70 lbs
To see all USPS Priority Mail Express® rates, view or download the rate sheets below
Priority Mail Express box and envelope

Priority Mail Express® is the fastest USPS® service

If getting your package there as fast as possible is what’s most important, Priority Mail Express® will fit the bill. As long as you have it picked up or drop it off before your local Post Office closes, overnight delivery is guaranteed for packages coming from and going to urban areas, or guaranteed 2-day for rural areas. The guarantee is printed on the label, and if the delivery is late you can claim the postage cost back.

Use the USPS® Service Commitments tool to see the cutoff times for your area and the guaranteed delivery speed for your recipient.

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