Explore Miami, USA to Ashburn, USA ICMP RTT, jitter, packet loss and fiber latency limits on the AS203314 network. View route data.

🇺🇸 Miami, USA (MIA) → 🇺🇸 Ashburn, USA (IAD)

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

Miami to Ashburn averaged 27.3 ms across 50 replies. The observed range was 26.26 to 30.45 ms; these figures describe one probe round, not a long-term service target.

This is number 1 of 19 outgoing routes by average RTT. That ranking compares different destinations and is not adjusted for distance.

Latency Summary

Metric	Value
RTT	27.3 ms
Jitter	0.94 ms
Packet Loss	0%
Standard Fiber Floor	14.62 ms
Fiber Efficiency	53.6%
Latency Tier	Ultra-Low
Source Region	North America
Destination Region	North America

Ping Measurement Series

50 ICMP echo probes were recorded in this round. Individual replies and their distribution are shown below.

Ping series: MIA → IAD

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 27.3 ± 0.14 ms (SE)

Sample distribution: box = interquartile range (26.6–27.8 ms), median 26.9 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 (14.6 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	26.85
2	100	26.31
3	200	26.96
4	300	27.92
5	400	26.70
6	500	26.52
7	600	27.14
8	700	27.95
9	800	26.69
10	900	30.02
11	1000	27.98
12	1100	27.12
13	1200	26.40
14	1300	26.59
15	1400	26.69
16	1500	28.63
17	1600	30.45
18	1700	29.49
19	1800	27.72
20	1900	30.17
21	2000	27.59
22	2100	26.69
23	2200	27.77
24	2300	26.94
25	2400	27.89
26	2500	26.73
27	2600	27.70
28	2700	26.68
29	2800	26.74
30	2900	27.66
31	3000	26.97
32	3100	26.38
33	3200	26.29
34	3300	28.54
35	3400	26.90
36	3500	28.45
37	3600	27.38
38	3700	27.31
39	3800	26.64
40	3900	26.61
41	4000	26.50
42	4100	26.29
43	4200	26.26
44	4300	27.80
45	4400	26.81
46	4500	26.45
47	4600	26.99
48	4700	26.42
49	4800	26.63
50	4900	26.69

Download This Route's Data

Download the probe round as CSV, JSON or YAML under CC BY 4.0. Citation details include the route and round timestamp.

CSV JSON YAML Full dataset

Theoretical Fiber Latency

The propagation model uses public city-centre coordinates from GeoNames: Miami (25.77427, -80.19366) and Ashburn (39.04372, -77.48749). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	1,493.2 km
Vacuum RTT floor	9.96 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	14.62 ms
Low-latency fiber material floor	14.56 ms
Engineering floor (5% path allowance)	15.36 ms
Research 1.33× mapped-fiber reference	19.45 ms
Estimated unamplified path loss	313.6 dB
Transparent optical spans / inline amplifiers	20 / 19
Published RTT inflation over fiber floor	1.87×

The span count assumes 80 km optical spans. Attenuation is a power-loss term, not a propagation delay. See the model assumptions and equations.

Stability & Trend

Statistics from the same 50 replies. They describe this probe round, not continuous historical monitoring.

Round Statistic	Value
Minimum RTT	26.26 ms
Average RTT	27.3 ms
Maximum RTT	30.45 ms
Standard deviation	1.02 ms
Stdev / average	3.7%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 27.3 ms
Minimum: 27.1 ms
Maximum: 27.6 ms
Average loss: 0.01%

Route Context

Departure PoP: Miami (MIA)
Destination PoP: Ashburn (IAD)
Region overview: North America → North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Ashburn to Miami latency and RTT: 27.4 ms

Fastest routes departing Miami (MIA)

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
Miami to Amsterdam latency and RTT: 106 ms

Fastest routes arriving at Ashburn (IAD)

New York to Ashburn latency and RTT: 6 ms
Los Angeles to Ashburn latency and RTT: 60.4 ms
Seattle to Ashburn latency and RTT: 61.5 ms
London to Ashburn latency and RTT: 71 ms
Paris to Ashburn latency and RTT: 75.5 ms

Same corridor (North America → North America)

Ashburn to New York latency and RTT: 6 ms
Seattle to Los Angeles latency and RTT: 25.9 ms
Los Angeles to Seattle latency and RTT: 26.9 ms

About This Measurement

These ICMP measurements cover the two backbone endpoints. Access networks, routing policy and load can change an end user's result. A probe round is not an SLA.

The underlying replies are available under CC BY 4.0 in the Hats Network latency dataset. Per-pair files are available at /opendata/latency/latest/pairs/mia-iad.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Miami → Ashburn round 2026-08-16T04:07:28Z, CC BY 4.0".

Round published August 16, 2026. See the full interactive latency matrix or browse more city-pair routes.

Miami, USA → Ashburn, USA RTT