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

🇺🇸 New York, USA (NYC) → 🇺🇸 Seattle, USA (SEA)

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

New York to Seattle averaged 58.7 ms across 50 replies. The observed range was 56.64 to 67.85 ms; these figures describe one probe round, not a long-term service target.

This is number 3 of 19 outgoing routes by average RTT. That ranking compares different destinations and is not adjusted for distance.

Latency Summary

Metric	Value
RTT	58.7 ms
Jitter	1.34 ms
Packet Loss	0%
Standard Fiber Floor	37.95 ms
Fiber Efficiency	64.7%
Latency Tier	Excellent
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: NYC → SEA

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 58.7 ± 0.30 ms (SE)

Sample distribution: box = interquartile range (57.2–59.5 ms), median 58.1 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 (38.0 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	59.06
2	100	59.60
3	200	62.55
4	300	58.98
5	400	61.77
6	500	59.02
7	600	58.25
8	700	58.08
9	800	57.36
10	900	60.64
11	1000	60.20
12	1100	59.34
13	1200	57.87
14	1300	60.37
15	1400	58.33
16	1500	57.16
17	1600	57.10
18	1700	57.62
19	1800	60.49
20	1900	58.15
21	2000	57.09
22	2100	56.82
23	2200	56.64
24	2300	57.07
25	2400	60.27
26	2500	67.85
27	2600	62.78
28	2700	60.84
29	2800	61.43
30	2900	61.81
31	3000	58.44
32	3100	57.26
33	3200	57.76
34	3300	56.99
35	3400	57.03
36	3500	57.41
37	3600	57.00
38	3700	58.30
39	3800	57.67
40	3900	58.36
41	4000	57.31
42	4100	57.15
43	4200	56.83
44	4300	56.93
45	4400	56.75
46	4500	57.37
47	4600	58.05
48	4700	57.79
49	4800	58.10
50	4900	57.96

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: New York City (40.71427, -74.00597) and Seattle (47.60621, -122.33207). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	3,875.5 km
Vacuum RTT floor	25.85 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	37.95 ms
Low-latency fiber material floor	37.8 ms
Engineering floor (5% path allowance)	39.85 ms
Research 1.33× mapped-fiber reference	50.48 ms
Estimated unamplified path loss	813.9 dB
Transparent optical spans / inline amplifiers	51 / 50
Published RTT inflation over fiber floor	1.55×

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	56.64 ms
Average RTT	58.7 ms
Maximum RTT	67.85 ms
Standard deviation	2.09 ms
Stdev / average	3.6%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 58.7 ms
Minimum: 58.1 ms
Maximum: 59.3 ms
Average loss: 0.02%

Route Context

Departure PoP: New York (NYC)
Destination PoP: Seattle (SEA)
Region overview: North America → North America
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Seattle to New York latency and RTT: 59.5 ms

Fastest routes departing New York (NYC)

New York to Ashburn latency and RTT: 6 ms
New York to Miami latency and RTT: 32.9 ms
New York to Los Angeles latency and RTT: 58.9 ms
New York to London latency and RTT: 63.5 ms
New York to Amsterdam latency and RTT: 68.7 ms

Fastest routes arriving at Seattle (SEA)

Los Angeles to Seattle latency and RTT: 26.9 ms
Ashburn to Seattle latency and RTT: 62.3 ms
Miami to Seattle latency and RTT: 81.9 ms
Tokyo to Seattle latency and RTT: 84.8 ms
Taipei to Seattle latency and RTT: 115.8 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
Miami to Ashburn latency and RTT: 27.3 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/nyc-sea.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, New York → Seattle 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.

New York, USA → Seattle, USA RTT