Observed arrival · 2026-10-21
Seamlessfly’s flight-by-flight punctuality board
A bilingual reference site showing on-time percentages for US–China and Asia routes, plus rankings for reliable US flights.
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●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Travelers comparing US–China and Asia flights
- Worth noticing
- The homepage reports 31,067 flights across 1,078 routes and labels its figures “for reference only.”
Field notes
Route listings pair airport codes and city names with on-time percentages, while a separate US ranking adds flight numbers and average delay. The homepage attributes international-route figures to FlightAware and US-route figures to the US BTS; its US ranking is labeled as covering the last 12 months. It also links to transfer guides for Seoul Incheon and Tokyo Narita, and labels the data “for reference only.”
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
◎NicheUnusually specific use
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