Weekly US Mail Traffic Report – March 28, 2022
March 29, 2022   Dave Lewis

Consistent performance - again.      

A consistent performance since early February.  Performance metrics almost unchanged in letter and flat categories.

First-Class letters were delivered on time 94.62% of the time, largely unchanged since last week at 94.61%.  First-Class flats, delivered on time 95.60% of the time, a marked improvement from last week, and the best performance we have seen since we started measuring in June 2021.       

Marketing Mail Letters kept on keeping on with 97.65% of letters delivered on time.  Marketing Mail Flats were delivered on time 93.73% of the time.  

Average Intra-SCF delivery time was 2.06 days for Marketing Mail letters, 2.71 days for Marketing Mail flats.  Flats slowed on average in inter SCF delivery from last week at 2.21 days. 

Slowest SCFs for Intra-SCF letters, delivery week of 3/21: (10,000 pieces minimum)

  • Memphis, TN:              3.54 days
  • Columbia, SC:              3.07 days
  • Southern MD, MD:       3.02 days

The fastest:

  • Iron Mountain, MI:       1.33 days
  • Van Nuys, CA:              1.45 days
  • El Paso, TX:                   1.46 days

A letter-size piece from California to Maryland, on average, took:

  • First-Class:           2.92 days
  • Marketing Mail:   8.14 days

Generally, another strong week.  We’ll keep an eye on intra SCF flats.


How do Marketing Mail letters and flats differ in Intra-SCF turnaround?  The top graph is letters, the bottom, flats.  Don’t get too hung up on the ends of the graphs - those are often small samples.  Note the scales, too.  Flats are a little slower than letters, but the difference is probably less dramatic than you’d expect.

March 29