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Direct flights from Dehong (LUM) to Shenzhen (SZX): 3 nonstop departures observed each week across 1 airline. The median arrival is 44 minutes early. No cancellations were recorded across the 3 tracked flights. The nonstop covers 1,569 km, an estimated 2 hours 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Dehong and Shenzhen. Updated 12 September 2026 at 07:48 UTC.
LUM
Dehong
tracking
SZX
Shenzhen
smooth · +0
1,569 km · ~2h 31m est.
Under pressure · 1 airline · 3x weekly · nonstop
63 / 100
route health from live LUM and SZX delay boards
Median arrival delay is −44 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−44 minacross the last 3 operated legs
Flight time~2h 31mestimated from route distance
Weekly departures3x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Tibet 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 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsnext sweep in 120s
How the Dehong to Shenzhen route actually runs
Pro Flight Search records official board updates for nonstop LUM to SZX 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 — Dehong (LUM) to Shenzhen (SZX) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/LUM-SZX
LUM to SZX questions
Is LUM–SZX running on time right now?
Some delays possible. Both endpoints currently score the same, route health score 63/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from LUM to SZX?
Great-circle distance is 1,569 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 141–164 min gate-to-gate on this route.
How often does LUM–SZX fly?
Tibet Airlines runs the route with about 3 flights a week (tue, 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 LUM and arrival-side delay at SZX, 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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