Over 99% of international data travels via undersea cables: 70ms vs 600ms satellite round trip
aakashgupta · x · 2026-10-20
A Tiff in Tech infographic highlights that over 99% of international data travels through undersea cables. A round trip to London takes about 70ms over a cable versus roughly 600ms via geostationary satellite — a nearly 9x latency gap.
This is why intercontinental traffic, low-latency trading, and cloud services rely overwhelmingly on submarine cable networks rather than satellite links.
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