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

🇺🇸 Seattle, USA (SEA) → 🇹🇼 Taipei, Taiwan (TPE)

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

Seattle to Taipei averaged 114.7 ms across 50 replies. The observed range was 109.75 to 137.83 ms; these figures describe one probe round, not a long-term service target.

Standard deviation was 5.07 ms, or 4.4% of the average. This describes variation within the sample without identifying its cause.

Latency Summary

Metric	Value
RTT	114.7 ms
Jitter	4.49 ms
Packet Loss	0%
Standard Fiber Floor	95.46 ms
Fiber Efficiency	83.2%
Latency Tier	Good
Source Region	North America
Destination Region	Asia Pacific

Ping Measurement Series

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

Ping series: SEA → TPE

50 ICMP echo samples at 100 ms intervals · round 2026-08-16T04:07:28Z · avg 114.7 ± 0.72 ms (SE)

Sample distribution: box = interquartile range (111.4–115.2 ms), median 113.2 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 (95.5 ms) for this route.

Full 50-sample dataset

Seq	Offset (ms)	RTT (ms)
1	0	113.25
2	100	111.52
3	200	114.73
4	300	112.35
5	400	137.83
6	500	121.73
7	600	115.93
8	700	113.67
9	800	112.66
10	900	110.86
11	1000	113.61
12	1100	113.79
13	1200	110.75
14	1300	110.72
15	1400	115.25
16	1500	111.81
17	1600	110.77
18	1700	111.98
19	1800	124.14
20	1900	114.99
21	2000	111.39
22	2100	123.19
23	2200	115.16
24	2300	111.15
25	2400	120.68
26	2500	117.75
27	2600	112.22
28	2700	112.84
29	2800	120.14
30	2900	113.05
31	3000	113.90
32	3100	110.68
33	3200	110.31
34	3300	111.10
35	3400	113.34
36	3500	118.32
37	3600	112.89
38	3700	113.93
39	3800	111.15
40	3900	113.57
41	4000	110.90
42	4100	111.75
43	4200	112.18
44	4300	110.13
45	4400	109.75
46	4500	125.76
47	4600	120.44
48	4700	117.71
49	4800	112.40
50	4900	114.88

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: Seattle (47.60621, -122.33207) and Taipei (25.05306, 121.52639). These are not facility coordinates or a surveyed cable path.

Physical Reference	Value
WGS-84 geodesic distance	9,748.1 km
Vacuum RTT floor	65.03 ms
Standard fiber RTT floor ( $n_g=1.4679$ )	95.46 ms
Low-latency fiber material floor	95.08 ms
Engineering floor (5% path allowance)	100.25 ms
Research 1.33× mapped-fiber reference	126.96 ms
Estimated unamplified path loss	2047.1 dB
Transparent optical spans / inline amplifiers	128 / 127
Published RTT inflation over fiber floor	1.2×

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	109.75 ms
Average RTT	114.7 ms
Maximum RTT	137.83 ms
Standard deviation	5.07 ms
Stdev / average	4.4%

Estimated RTT trend

Modeled comparison, not historical probe measurements.

Average: 114.7 ms
Minimum: 114.1 ms
Maximum: 115.5 ms
Average loss: 0.02%

Route Context

Departure PoP: Seattle (SEA)
Destination PoP: Taipei (TPE)
Region overview: North America → Asia Pacific
Corridor overview: North America to Asia Pacific
Full global matrix: Backbone Latency Matrix
Physical methodology: Theoretical Fiber Latency

Reverse direction

Taipei to Seattle latency and RTT: 115.8 ms

Fastest routes departing Seattle (SEA)

Seattle to Los Angeles latency and RTT: 25.9 ms
Seattle to New York latency and RTT: 59.5 ms
Seattle to Ashburn latency and RTT: 61.5 ms
Seattle to Miami latency and RTT: 81.7 ms
Seattle to Tokyo latency and RTT: 85 ms

Fastest routes arriving at Taipei (TPE)

Hong Kong to Taipei latency and RTT: 14.7 ms
Tokyo to Taipei latency and RTT: 32.3 ms
Singapore to Taipei latency and RTT: 45.8 ms
Sydney to Taipei latency and RTT: 131.7 ms
Moscow to Taipei latency and RTT: 132.1 ms

Same corridor (North America → Asia Pacific)

Los Angeles to Tokyo latency and RTT: 101.2 ms
Seattle to Hong Kong latency and RTT: 130.4 ms
Los Angeles to Taipei latency and RTT: 132.9 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/sea-tpe.pings.{csv,json,yaml}. Cite the route, round timestamp and dataset version. Example: "Hats Network latency dataset, Seattle → Taipei 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.

Seattle, USA → Taipei, Taiwan RTT