Sichuan Airlines3U
Flights 3U3815 17:15 Mo We Th Sa Su
live
Direct flights from Chengdu (TFU) to St. Petersburg (LED): 5 nonstop departures observed each week across 1 airline. The nonstop covers 6,262 km, an estimated 8 hours 32 minutes in the air. Measured by Pro Flight Search from live flight boards at Chengdu and St. Petersburg. Updated 10 September 2026 at 07:03 UTC.
TFU
Chengdu
tracking
LED
St. Petersburg
tracking
6,262 km · ~8h 32m est.
Tracking · 1 airline · 5x weekly · nonstop
···
delay history for TFU → LED is still building
Flight time~8h 32mestimated from route distance
Weekly departures5x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Sichuan Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysAirports right now
live boardsnext sweep in 120s
How the Chengdu to St. Petersburg route actually runs
Pro Flight Search records official board updates for nonstop TFU to LED flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Chengdu (TFU) to St. Petersburg (LED) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/TFU-LED
TFU to LED questions
How long is the flight from TFU to LED?
Great-circle distance is 6,262 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 472–567 min gate-to-gate on this route.
How often does TFU–LED fly?
Sichuan Airlines runs the route with about 5 flights a week (sun, mon, wed, thu, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at TFU and arrival-side delay at LED, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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