Los Angeles to Johannesburg ICMP RTT measurement page: average latency 287.2 ms, zero packet loss, and jitter data for USA-to-South Africa network performance.

🇺🇸 Los Angeles, USA (LAX) → 🇿🇦 Johannesburg, South Africa (JNB)

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

In the 2026-08-16T04:07:28Z round, ICMP echo RTT from Los Angeles to Johannesburg averaged 287.2 ms, with a minimum of 281.06 ms and a maximum of 306.43 ms. The 5.36 ms standard deviation and 4.1 ms jitter show the path is steady even at high latency, and all 50 samples were returned without loss.

For a great-circle distance of 16,680.3 km, the average is 1.76 times the 163.35 ms fiber floor, an efficiency of 56.9%. That larger inflation over the floor reflects a route where physical distance alone imposes a very high round-trip propagation baseline.

This route was ranked 19th among the 19 outbound routes in the same round, with the highest average latency in that set. Its relative variability is lower than the 3.28% median standard-deviation-to-average ratio, and the zero packet loss indicates that the high RTT is not accompanied by instability.

Latency Summary

Metric	Value
RTT	287.2 ms
Jitter	4.1 ms
Packet Loss	0%
Standard Fiber Floor	163.35 ms
Fiber Efficiency	56.9%
Latency Tier	High
Source Region	North America
Destination Region	Africa

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: LAX → JNB

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 287.2 ± 0.76 ms (SE)

Sample distribution: box = interquartile range (283.6–288.2 ms), median 285.4 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 (163.3 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	306.43
2	100	292.89
3	200	285.41
4	300	303.33
5	400	296.76
6	500	289.49
7	600	284.75
8	700	285.15
9	800	286.75
10	900	283.15
11	1000	286.11
12	1100	283.50
13	1200	288.19
14	1300	290.27
15	1400	284.29
16	1500	283.02
17	1600	298.94
18	1700	289.22
19	1800	285.23
20	1900	282.23
21	2000	285.32
22	2100	286.55
23	2200	284.82
24	2300	286.09
25	2400	283.03
26	2500	286.30
27	2600	285.45
28	2700	284.42
29	2800	282.39
30	2900	281.52
31	3000	281.92
32	3100	281.06
33	3200	281.88
34	3300	284.05
35	3400	287.59
36	3500	284.94
37	3600	283.17
38	3700	283.25
39	3800	282.99
40	3900	287.87
41	4000	286.89
42	4100	293.70
43	4200	288.06
44	4300	290.99
45	4400	285.81
46	4500	295.99
47	4600	286.63
48	4700	285.03
49	4800	285.00
50	4900	292.18

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 Los Angeles (34.05223, -118.24368) and Johannesburg (-26.20227, 28.04363). It does not disclose either facility address.

Physical Reference	Value
WGS-84 geodesic distance	16,680.3 km
Vacuum RTT floor	111.28 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	163.35 ms
Low-latency fiber material floor	162.69 ms
Engineering floor (5% path allowance)	171.54 ms
Research 1.33× mapped-fiber reference	217.25 ms
Estimated unamplified path loss	3502.9 dB
Transparent optical spans / inline amplifiers	219 / 218
Published RTT inflation over fiber floor	1.76×

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	281.06 ms
Average RTT	287.2 ms
Maximum RTT	306.43 ms
Standard deviation	5.36 ms
Stdev / average	1.9%

RTT trend

Estimated route stability across the selected time window.

Average: 287.3 ms
Minimum: 284.6 ms
Maximum: 290.4 ms
Average loss: 0.02%

Route Context

Departure PoP: Los Angeles (LAX)
Destination PoP: Johannesburg (JNB)
Region overview: North America → Africa
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Johannesburg to Los Angeles latency and RTT — 285.5 ms

Fastest routes departing Los Angeles (LAX)

Los Angeles to Seattle latency and RTT — 26.9 ms
Los Angeles to Miami latency and RTT — 57.3 ms
Los Angeles to New York latency and RTT — 57.9 ms
Los Angeles to Ashburn latency and RTT — 60.4 ms
Los Angeles to Tokyo latency and RTT — 101.2 ms

Fastest routes arriving at Johannesburg (JNB)

Amsterdam to Johannesburg latency and RTT — 171.9 ms
Berlin to Johannesburg latency and RTT — 172.1 ms
London to Johannesburg latency and RTT — 179.6 ms
Paris to Johannesburg latency and RTT — 180.9 ms
Frankfurt to Johannesburg latency and RTT — 188.4 ms

Same corridor (North America → Africa)

New York to Johannesburg latency and RTT — 221.5 ms
Ashburn to Johannesburg latency and RTT — 228.3 ms
Miami to Johannesburg latency and RTT — 259.8 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/lax-jnb.pings.{csv,json,yaml}. When citing, include the route, the measurement round timestamp, and the dataset version — for example: "Hats Network latency dataset, Los Angeles → Johannesburg 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.

Los Angeles, USA → Johannesburg, South Africa RTT