# Los Angeles, USA → Miami, USA RTT

🇺🇸 **Los Angeles, USA (LAX)** → 🇺🇸 **Miami, USA (MIA)**

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

For the 2026-08-16T04:07:28Z round, ICMP echo RTT between Los Angeles, USA and Miami, USA averaged 57.3 ms across 50 samples, with a minimum of 55.45 ms, a maximum of 63.93 ms, and no packet loss.

The route's 1.73 ms standard deviation and 1.26 ms jitter keep variability below the 3.28% median for the 19-route set, and the average latency places it second in that set. Its average sits 1.55 times above the theoretical fiber floor, yielding 64.3% fiber efficiency.

With zero loss and low jitter, the route presents a stable RTT profile; most of the measured delay is accounted for by the 3,764 km separation rather than by additional latency beyond the fiber floor.

## Latency Summary

| Metric               | Value                                                        |
| -------------------- | ------------------------------------------------------------ |
| RTT                  | **57.3 ms**                                                  |
| Jitter               | **1.26 ms**                                                  |
| Packet Loss          | **0%**                                                       |
| Standard Fiber Floor | **36.86 ms**                                                 |
| Fiber Efficiency     | **64.3%**                                                    |
| Latency Tier         | Excellent                                                    |
| Source Region        | [North America](/docs/network/latency/regions/north-america) |
| Destination Region   | [North America](/docs/network/latency/regions/north-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.

## 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](#about-this-measurement) for citation guidance.

## Theoretical Fiber Latency

The public physical reference uses the GeoNames city centres for [Los Angeles](https://www.geonames.org/5368361) (34.05223, -118.24368) and [Miami](https://www.geonames.org/4164138) (25.77427, -80.19366). It does not disclose either facility address.

| Physical Reference                            | Value          |
| --------------------------------------------- | -------------- |
| WGS-84 geodesic distance                      | **3,764.3 km** |
| Vacuum RTT floor                              | **25.11 ms**   |
| Standard fiber RTT floor ($n_g=1.4679$)       | **36.86 ms**   |
| Low-latency fiber material floor              | **36.71 ms**   |
| Engineering floor (5% path allowance)         | **38.71 ms**   |
| Research 1.33× mapped-fiber reference         | **49.03 ms**   |
| Estimated unamplified path loss               | **790.5 dB**   |
| Transparent optical spans / inline amplifiers | **50 / 49**    |
| Published RTT inflation over fiber floor      | **1.55×**      |

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](/docs/network/latency/theoretical-fiber-latency).

## 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        | **55.45 ms** |
| Average RTT        | **57.3 ms**  |
| Maximum RTT        | **63.93 ms** |
| Standard deviation | **1.73 ms**  |
| Stdev / average    | **3.0%**     |

## Route Context

* Departure PoP: [Los Angeles (LAX)](/docs/network/latency/lax-los-angeles)
* Destination PoP: [Miami (MIA)](/docs/network/latency/mia-miami)
* Region overview: [North America](/docs/network/latency/regions/north-america) → [North America](/docs/network/latency/regions/north-america)
* Full global matrix: [Backbone Latency Matrix](/docs/network/latency)
* Physical methodology: [Theoretical Fiber Latency](/docs/network/latency/theoretical-fiber-latency)

## Related City-Pair Routes

**Reverse direction**

* [Miami to Los Angeles latency and RTT](/docs/network/latency/pairs/mia-lax-rtt) — 56.8 ms

**Fastest routes departing Los Angeles (LAX)**

* [Los Angeles to Seattle latency and RTT](/docs/network/latency/pairs/lax-sea-rtt) — 26.9 ms
* [Los Angeles to New York latency and RTT](/docs/network/latency/pairs/lax-nyc-rtt) — 57.9 ms
* [Los Angeles to Ashburn latency and RTT](/docs/network/latency/pairs/lax-iad-rtt) — 60.4 ms
* [Los Angeles to Tokyo latency and RTT](/docs/network/latency/pairs/lax-tyo-rtt) — 101.2 ms
* [Los Angeles to London latency and RTT](/docs/network/latency/pairs/lax-lon-rtt) — 129.2 ms

**Fastest routes arriving at Miami (MIA)**

* [Ashburn to Miami latency and RTT](/docs/network/latency/pairs/iad-mia-rtt) — 27.4 ms
* [New York to Miami latency and RTT](/docs/network/latency/pairs/nyc-mia-rtt) — 32.9 ms
* [São Paulo to Miami latency and RTT](/docs/network/latency/pairs/gru-mia-rtt) — 74 ms
* [Seattle to Miami latency and RTT](/docs/network/latency/pairs/sea-mia-rtt) — 81.7 ms
* [London to Miami latency and RTT](/docs/network/latency/pairs/lon-mia-rtt) — 101.9 ms

**Same corridor (North America → North America)**

* [Ashburn to New York latency and RTT](/docs/network/latency/pairs/iad-nyc-rtt) — 6 ms
* [New York to Ashburn latency and RTT](/docs/network/latency/pairs/nyc-iad-rtt) — 6 ms
* [Seattle to Los Angeles latency and RTT](/docs/network/latency/pairs/sea-lax-rtt) — 25.9 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](/opendata/latency/). Per-pair files are available at `/opendata/latency/latest/pairs/lax-mia.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 → Miami round 2026-08-16T04:07:28Z, CC BY 4.0".

***

*Data auto-generated on August 16, 2026. Explore the [full interactive latency matrix](/docs/network/latency) or browse more [city-pair routes](/docs/network/latency/pairs).*

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## License and attribution

- **Canonical source:** [View the human-readable HTML page](https://hatsnet.io/docs/network/latency/pairs/lax-mia-rtt).
- **Original documentation:** © Hats Network Inc., licensed under [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).
- **Public latency data:** © Hats Network Inc., licensed under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).
- **Full terms:** [Content and Data License](https://hatsnet.io/docs/legal/content-and-data-license) — includes attribution requirements, third-party material, trademarks, source code and other exclusions.