ZH9521Shenzhen Airlines · SZX → PVG
live · 18m ago
Route confirmed Shenzhen Airlines

ZH9521 ShenzhenSZX · 15:30 ShanghaiPVG · 17:55

ZH9521 by Shenzhen Airlines flies from Shenzhen (SZX) to Shanghai (PVG) for the Wed, Nov 4 departure.

Right nowGateClosed · gate 332
15:30

departs SZX · on schedule

⚖ ZH9521 typically leaves +8 and lands −24. The air wins minutes back.
Typical gate push+8 minmedian posted departure
Typical arrival−24 minmedian over 10 operations
Wins back in air~32 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 10tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-02
+24 gate · −10 arrival
11-01
−3 gate · −46 arrival
10-30
+17 gate · +3 arrival
10-29
+6 gate · −34 arrival
10-28
+12 gate · −26 arrival
10-27
+8 gate · −27 arrival
10-26
−3 gate · −38 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −24 min · 0 cancelled · 10 operations tracked

The route today

live boards
SZXShenzhenOn-time likelySZX delay board →
PVGShanghaiOn-time likelyPVG delay board →
SZX→PVGevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
29%Chance of 15+ min delay
0.4%Chance of cancellation
+3 minTypical airport delay in this weather

Driven mainly by PVG (Shanghai), currently flying MVFR (marginal visual). These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow at Shenzhen

Forecast

Thu 5 Nov, local date

High30°Clikely 28°C to 31°C
Low25°Clikely 23°C to 27°C
  • 81% chance of rain

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Shanghai

Forecast

Thu 5 Nov, local date

High21°Clikely 19°C to 22°C
Low15°Clikely 13°C to 17°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Shenzhen to Shanghai flights today

same route · Shenzhen Airlines
ZH9511departs 08:35
ZH9513departs 09:55
ZH9515departs 12:35
ZH9519departs 14:45
ZH9525departs 16:50
ZH9531departs 17:55

If ZH9521 is cancelled, these are the other Shenzhen Airlines nonstop flights from Shenzhen to Shanghai on the same day, with scheduled departure times in SZX local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How ZH9521 actually runs

Pro Flight Search has tracked every published board update for ZH9521 across the SZX and PVG boards: schedule changes, gate pushes and actual clocks. Usually lands ~24 min early. Based on 10 confirmed landings · 10/10 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how ZH9521 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-02SZX 15:30 15:54 (+24)PVG 17:55 17:45 (−10)
11-01SZX 15:30 15:27 (−3)PVG 17:55 17:09 (−46)
10-30SZX 15:30 15:47 (+17)PVG 17:55 17:58 (+3)
10-29SZX 15:30 15:36 (+6)PVG 17:55 17:21 (−34)
10-28SZX 15:30 15:42 (+12)PVG 17:55 17:29 (−26)
10-27SZX 15:30 15:38 (+8)PVG 17:55 17:28 (−27)
10-26SZX 15:30 15:27 (−3)PVG 17:55 17:17 (−38)
10-25SZX 15:30 15:52 (+22)PVG 17:55 17:49 (−6)
10-24SZX 15:00 15:05 (+5)PVG 17:20 16:57 (−23)
10-23SZX PVG 17:20 17:17 (−3)

Aircraft

Recent tails: B-20DN, B-1376, B-6780, B-5607.

Board clocks recorded as SZX and PVG published them.

Planning around ZH9521? 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: ZH9521 Shenzhen to Shanghai on-time performance, measured from the SZX and PVG airport boards.

Canonical URL
https://proflightsearch.com/flight/ZH9521
How we measure this →