UO623HK Express · HND → HKG
live · 2m ago
Route confirmed HK Express

UO623 TokyoHND · 23:55 Hong KongHKG · 04:15

UO623 by HK Express flies from Tokyo (HND) to Hong Kong (HKG) for the Sun, Nov 1 departure.

Right nowScheduled · today
23:55

departs HND · on schedule

⚖ UO623 typically leaves −8 and lands −15. The air wins minutes back.
Typical gate push−8 minmedian posted departure
Typical arrival−15 minmedian over 16 operations
Wins back in air~7 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
11-01
−42 arrival
10-31
−42 arrival
10-30
−29 arrival
10-29
−46 arrival
10-28
−1 arrival
10-27
−18 arrival
10-26
−32 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 −15 min · 0 cancelled · 16 operations tracked

The route today

live boards
HNDTokyoOn-time likelyHND delay board →
HKGHong KongOn-time likelyHKG delay board →
HND→HKGevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
2.4%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at HND 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.

Under low visibility at HND, HK Express has historically cancelled ~19% of flights, vs 1.4% in clear conditions, over the trailing 90 days.

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

Tomorrow on this route

Forecast

Tokyo to Hong Kong with HK Express · Mon 2 Nov, local date

Outlook: about usual
Chance a departure is cancelled
1.1%0.7× usual
Chance a departure leaves 60+ min late
1.9%1.1× usual

Forecast weather: 72% chance of rain at Tokyo

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 3 departures a day on this route with this airline. · 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
UO629departs 01:55
UO625departs 06:35
UO633departs 23:55

If UO623 is cancelled, these are the other HK Express nonstop flights from Tokyo to Hong Kong on the same day, with scheduled departure times in HND 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 UO623 actually runs

Pro Flight Search has tracked every published board update for UO623 across the HND and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~15 min early. Based on 14 confirmed landings · 14/14 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UO623 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-01HND 23:55HKG 04:15 03:33 (−42)
10-31HND 23:55HKG 04:15 03:33 (−42)
10-30HND 23:55HKG 04:15 03:46 (−29)
10-29HND 23:55HKG 04:15 03:29 (−46)
10-28HND 23:55HKG 04:15 04:14 (−1)
10-27HND 23:55HKG 04:15 03:57 (−18)
10-26HND 23:55HKG 04:15 03:43 (−32)
10-25HND 01:00 00:57 (−3)HKG 04:40 04:27 (−13)
10-24HND 01:00 00:52 (−8)HKG 04:40 04:30 (−10)
10-23HND 01:00 00:47 (−13)HKG 04:40 04:30 (−10)
10-22HND 01:00 00:46 (−14)HKG 04:40 04:37 (−3)
10-21HND 01:00 00:56 (−4)HKG 04:40 04:28 (−12)
10-20HND 01:00 00:54 (−6)HKG 04:40 04:33 (−7)
10-19HND 01:00 00:52 (−8)HKG 04:40 04:15 (−25)
10-18HND 01:00 00:54 (−6)HKG 04:40 04:13 (−27)
10-17HND 01:00 00:49 (−11)HKG 04:40 04:38 (−2)

Board clocks recorded as HND and HKG published them.

Planning around UO623? 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: UO623 Tokyo to Hong Kong on-time performance, measured from the HND and HKG airport boards.

Canonical URL
https://proflightsearch.com/flight/UO623
How we measure this →