Miami (USA) to São Paulo (Brazil) ICMP RTT measurement: average latency, packet loss, and route stability for North-South America connectivity.

🇺🇸 Miami, USA (MIA) → 🇧🇷 São Paulo, Brazil (GRU)

Measurement round: 2026-08-16T04:07:28Z.

In the 2026-08-16T04:07:28Z round, ICMP echo requests from Miami to São Paulo averaged 128.7 ms, with a minimum of 126.78 ms, a maximum of 136.62 ms, and zero packet loss across 50 samples.

Over the 6,546.4 km geodesic distance, that average is 2.01 times the 64.11 ms fiber floor, or 49.8% straight-line fiber efficiency, and the sample stays tight with a 1.96 ms standard deviation and 1.47 ms jitter.

The route ranked eleventh among the 19 routes measured in the same round; the median standard-deviation-to-average ratio across that route set was 3.28%, while this route's relative spread comes out around 1.5%, making the high latency notably steady.

Latency Summary

Metric	Value
RTT	128.7 ms
Jitter	1.47 ms
Packet Loss	0%
Standard Fiber Floor	64.11 ms
Fiber Efficiency	49.8%
Latency Tier	Good
Source Region	North America
Destination Region	South America

Ping Measurement Series

The chart below renders the 50-sample ICMP echo measurement round for this route; an accessible table of every sample is included with the chart.

Ping series: MIA → GRU

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 128.7 ± 0.28 ms (SE)

Sample distribution: box = interquartile range (127.4–129.6 ms), median 127.9 ms · whiskers = min–max · diamond = round average · each dot is one measured sample.

How to read this chart

The shaded band spans the measured minimum to maximum RTT of all samples collected up to that point, and the thin line traces the running average. The final position therefore matches the round statistics exactly — the band only widens when a new extreme sample arrives.

The dashed line is the round average, and the shaded band at the bottom is the theoretical fiber-optic floor (64.1 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	127.74
2	100	130.47
3	200	133.40
4	300	129.76
5	400	127.57
6	500	127.26
7	600	127.31
8	700	126.89
9	800	129.24
10	900	127.85
11	1000	126.86
12	1100	128.43
13	1200	127.66
14	1300	129.37
15	1400	127.96
16	1500	130.12
17	1600	129.70
18	1700	129.19
19	1800	128.74
20	1900	127.83
21	2000	127.23
22	2100	127.90
23	2200	127.90
24	2300	127.73
25	2400	127.86
26	2500	128.93
27	2600	136.62
28	2700	130.06
29	2800	130.28
30	2900	129.30
31	3000	130.11
32	3100	127.94
33	3200	126.89
34	3300	126.78
35	3400	128.18
36	3500	127.10
37	3600	126.80
38	3700	129.69
39	3800	128.07
40	3900	127.79
41	4000	126.98
42	4100	126.78
43	4200	132.75
44	4300	133.30
45	4400	130.61
46	4500	128.17
47	4600	127.12
48	4700	127.36
49	4800	128.07
50	4900	127.35

Download This Route's Data

This route's measurement round is published as open data (CC BY 4.0) in CSV, JSON, and YAML. See About This Measurement for citation guidance.

Download this dataset

Per-route ICMP ping series, released under CC BY 4.0. Uncompressed plain text — no decompression step needed.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for Miami (25.77427, -80.19366) and São Paulo (-23.54750, -46.63611). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	6,546.4 km
Vacuum RTT floor	43.67 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	64.11 ms
Low-latency fiber material floor	63.85 ms
Engineering floor (5% path allowance)	67.32 ms
Research 1.33× mapped-fiber reference	85.26 ms
Estimated unamplified path loss	1374.7 dB
Transparent optical spans / inline amplifiers	86 / 85
Published RTT inflation over fiber floor	2.01×

Attenuation is used to estimate the number of 80 km optical spans; it does not directly slow light. See the full theoretical fiber latency, GeoNames, attenuation, and amplifier methodology.

Stability & Trend

The current measurement round (2026-08-16T04:07:28Z) collected 50 ICMP echo samples on this route. Distribution statistics from that round:

Round Statistic	Value
Minimum RTT	126.78 ms
Average RTT	128.7 ms
Maximum RTT	136.62 ms
Standard deviation	1.96 ms
Stdev / average	1.5%

RTT trend

Estimated route stability across the selected time window.

Average: 128.7 ms
Minimum: 127.6 ms
Maximum: 130.1 ms
Average loss: 0.01%

Route Context

Departure PoP: Miami (MIA)
Destination PoP: São Paulo (GRU)
Region overview: North America → South America
Corridor overview: North America to South America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

São Paulo to Miami latency and RTT — 74 ms

Fastest routes departing Miami (MIA)

Miami to Ashburn latency and RTT — 27.3 ms
Miami to New York latency and RTT — 33.3 ms
Miami to Los Angeles latency and RTT — 56.8 ms
Miami to Seattle latency and RTT — 81.9 ms
Miami to London latency and RTT — 101.8 ms

Fastest routes arriving at São Paulo (GRU)

Ashburn to São Paulo latency and RTT — 101.4 ms
New York to São Paulo latency and RTT — 106.9 ms
Los Angeles to São Paulo latency and RTT — 131.3 ms
Seattle to São Paulo latency and RTT — 155.7 ms
London to São Paulo latency and RTT — 170.7 ms

About This Measurement

Published RTT reflects best-case backbone path behavior measured with ICMP echo probes between PoPs. End-user latency also depends on local access networks, congestion, routing policy, and traffic engineering. None of these values is an SLA.

The measurement round behind this page is published as open data under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/mia-gru.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Miami → São Paulo round 2026-08-16T04:07:28Z, CC BY 4.0".

Data auto-generated on August 16, 2026. Explore the full interactive latency matrix or browse more city-pair routes.

Miami, USA → São Paulo, Brazil RTT