UO857HK Express · NRT → HKG
updated 29m ago
Route confirmed HK Express

UO857 TokyoNRT · 08:15 Hong KongHKG · 12:40

UO857 by HK Express flies from Tokyo (NRT) to Hong Kong (HKG) for the Fri, Nov 6 departure.

Right nowLanded in Hong Kong · today
12:11

arrived at HKG · 29 min early

⚖ UO857 typically leaves +19 and lands −34. The air wins minutes back.
Typical gate push+19 minmedian posted departure
Typical arrival−34 minmedian over 13 operations
Wins back in air~53 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 13tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-06
+13 gate · −29 arrival
11-05
+27 gate · −35 arrival
11-04
+13 gate · −35 arrival
11-03
+38 gate · −2 arrival
11-02
+38 gate · +2 arrival
11-01
+46 gate · +2 arrival
10-31
+10 gate · −34 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 −34 min · 0 cancelled · 13 operations tracked

The route today

live boards
NRTTokyoOn-time likelyNRT delay board →
HKGHong KongOn-time likelyHKG delay board →
NRT→HKGevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
30%Chance of 15+ min delay
2.2%Chance of cancellation
+0 minTypical airport delay in this weather

Conditions at NRT and HKG are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 Tokyo

Forecast

Sat 7 Nov, local date

High19°Clikely 17°C to 20°C
Low10°Clikely 8°C to 12°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.

Tomorrow at Hong Kong

Forecast

Sat 7 Nov, local date

High29°Clikely 29°C to 30°C
Low26°Clikely 24°C to 27°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 Tokyo to Hong Kong flights today

same route · HK Express
UO849departs 15:25
UO871departs 16:55
UO647departs 19:00
UO651departs 20:05
UO693departs 20:55
UO653departs 21:35

If UO857 is cancelled, these are the other HK Express nonstop flights from Tokyo to Hong Kong on the same day, with scheduled departure times in NRT 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 UO857 actually runs

Pro Flight Search has tracked every published board update for UO857 across the NRT and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~34 min early. Based on 13 confirmed landings · 13/13 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 UO857 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
11-06NRT 08:15 08:28 (+13)HKG 12:40 12:11 (−29)
11-05NRT 08:15 08:42 (+27)HKG 12:40 12:05 (−35)
11-04NRT 08:15 08:28 (+13)HKG 12:40 12:05 (−35)
11-03NRT 08:15 08:53 (+38)HKG 12:40 12:38 (−2)
11-02NRT 08:15 08:53 (+38)HKG 12:40 12:42 (+2)
11-01NRT 08:15 09:01 (+46)HKG 12:40 12:42 (+2)
10-31NRT 08:15 08:25 (+10)HKG 12:40 12:06 (−34)
10-30NRT 08:15 08:36 (+21)HKG 12:40 12:05 (−35)
10-29NRT 08:15 08:34 (+19)HKG 12:40 12:08 (−32)
10-28NRT 08:15 08:27 (+12)HKG 12:40 12:06 (−34)
10-27NRT 08:15 08:58 (+43)HKG 12:40 12:29 (−11)
10-26NRT 08:15 08:25 (+10)HKG 12:40 11:43 (−57)
10-25NRT 08:15 08:33 (+18)HKG 12:40 11:37 (−63)

Aircraft

Recent tails: B-KKP, B-KKD, B-KKM, B-KKF.

Board clocks recorded as NRT and HKG published them.

Planning around UO857? 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: UO857 Tokyo to Hong Kong on-time performance, measured from the NRT and HKG airport boards.

Canonical URL
https://proflightsearch.com/flight/UO857
How we measure this →