FM840Shanghai Airlines · BKK → PVG
live · 26m ago
Route confirmed Shanghai Airlines

FM840 BangkokBKK · 21:55 ShanghaiPVG · 03:20

FM840 by Shanghai Airlines flies from Bangkok (BKK) to Shanghai (PVG) for the Mon, Oct 19 departure.

Right nowLanded in Shanghai · today
03:31

arrived at PVG · 11 min late

⚖ FM840 typically leaves +22 and lands −14. The air wins minutes back.
Typical gate push+22 minmedian posted departure
Typical arrival−14 minmedian over 16 operations
Wins back in air~36 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 16tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-19
+24 gate · +11 arrival
10-18
+25 gate · +11 arrival
10-17
+22 gate · +13 arrival
10-16
+33 gate · −2 arrival
10-15
+0 gate · +11 arrival
10-14
+15 gate · −16 arrival
10-13
+21 gate · −17 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 −14 min · 0 cancelled · 16 operations tracked

The route today

live boards
BKKBangkokOn-time likelyBKK delay board →
PVGShanghaiOn-time likelyPVG delay board →
BKK→PVGevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
42%Chance of 15+ min delay
17%Chance of cancellation
+8 minAvg hub delay right now

Driven mainly by PVG (Shanghai), currently flying MVFR (marginal visual). For this route and airline, 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 →

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 Bangkok to Shanghai flights today

same route · Shanghai Airlines
FM848departs 05:05
FM842departs 09:50
FM854departs 11:50
FM834departs 16:50
FM856departs 19:10

If FM840 is cancelled, these are the other Shanghai Airlines nonstop flights from Bangkok to Shanghai on the same day, with scheduled departure times in BKK local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How FM840 actually runs

Pro Flight Search has tracked every published board update for FM840 across the BKK and PVG boards: schedule changes, gate pushes and actual clocks. Usually lands ~11 min early. Based on 14 confirmed landings · 13/14 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 FM840 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
10-19BKK 21:55 22:19 (+24)PVG 03:20 03:31 (+11)
10-18BKK 21:55 22:20 (+25)PVG 03:20 03:31 (+11)
10-17BKK 21:55 22:17 (+22)PVG 03:20 03:33 (+13)
10-16BKK 21:55 22:28 (+33)PVG 03:20 03:18 (−2)
10-15BKK 21:55 (+0)PVG 03:20 03:31 (+11)
10-14BKK 21:55 22:10 (+15)PVG 03:20 03:04 (−16)
10-13BKK 21:55 22:16 (+21)PVG 03:20 03:03 (−17)
10-12BKK 21:55 22:19 (+24)PVG 03:20 03:06 (−14)
10-11BKK 21:55 22:18 (+23)PVG 03:20 03:09 (−11)
10-10BKK 21:55 22:21 (+26)PVG 03:20 03:03 (−17)
10-09BKK 21:55 22:08 (+13)PVG 03:20 02:58 (−22)
10-08BKK 21:55 22:05 (+10)PVG 03:20 02:59 (−21)
10-07BKK 21:55 22:06 (+11)PVG 03:20 02:46 (−34)
10-06BKK 21:55 22:41 (+46)PVG 03:20 03:36 (+16)
10-05BKK 21:55 22:14 (+19)PVG 03:20 02:58 (−22)
10-04BKK PVG 03:20 03:06 (−14)

Aircraft

Recent tails: B-1452, B-207G, B-1332, B-205Z.

Board clocks recorded as BKK and PVG published them.

Planning around FM840? 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 — FM840 Bangkok to Shanghai on-time performance, measured from the BKK and PVG airport boards.

Canonical URL
https://proflightsearch.com/flight/FM840
How we measure this →