UO631HK Express · ICN → HKG
live · 8m ago
Route confirmed HK Express

UO631 SeoulICN · 15:45 Hong KongHKG · 18:50

UO631 by HK Express flies from Seoul (ICN) to Hong Kong (HKG) for the Tue, Nov 10 departure.

Right nowScheduled · gate 111
15:45

departs ICN · on schedule

⚖ UO631 typically leaves +18 and lands −16. The air wins minutes back.
Typical gate push+18 minmedian posted departure
Typical arrival−16 minmedian over 14 operations
Wins back in air~34 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-09
+9 gate · −6 arrival
11-08
+25 gate · −17 arrival
11-07
+13 gate · −28 arrival
11-06
+9 gate · −32 arrival
11-05
+9 gate · −22 arrival
11-04
+15 gate · −22 arrival
11-03
+10 gate · −15 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 −16 min · 0 cancelled · 14 operations tracked

The route today

live boards
ICNSeoulModerate riskICN delay board →
HKGHong KongOn-time likelyHKG delay board →
ICN→HKGevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow at Hong Kong

Forecast

Wed 11 Nov, local date

High25°Clikely 24°C to 27°C
Low18°Clikely 16°C to 20°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 Seoul to Hong Kong flights today

same route · HK Express
UO615departs 02:25
UO617departs 06:40
UO619departs 12:25
UO627departs 21:50

If UO631 is cancelled, these are the other HK Express nonstop flights from Seoul to Hong Kong on the same day, with scheduled departure times in ICN 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 UO631 actually runs

Pro Flight Search has tracked every published board update for UO631 across the ICN and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~15 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 UO631 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
11-09ICN 15:45 15:54 (+9)HKG 18:50 18:44 (−6)
11-08ICN 15:45 16:10 (+25)HKG 18:50 18:33 (−17)
11-07ICN 15:45 15:58 (+13)HKG 18:50 18:22 (−28)
11-06ICN 15:45 15:54 (+9)HKG 18:50 18:18 (−32)
11-05ICN 15:45 15:54 (+9)HKG 18:50 18:28 (−22)
11-04ICN 15:45 16:00 (+15)HKG 18:50 18:28 (−22)
11-03ICN 15:45 15:55 (+10)HKG 18:50 18:35 (−15)
11-02ICN 15:45 16:10 (+25)HKG 18:50 18:49 (−1)
11-01ICN 15:45 16:04 (+19)HKG 18:50 18:38 (−12)
10-31ICN 15:45 16:17 (+32)HKG 18:50 18:38 (−12)
10-30ICN 15:45 16:15 (+30)HKG 18:50 18:30 (−20)
10-29ICN 15:45 16:12 (+27)HKG 18:50 18:48 (−2)
10-28ICN 15:45 16:05 (+20)HKG 18:50 18:35 (−15)
10-27ICN 15:45 16:01 (+16)HKG 18:50 18:23 (−27)

Board clocks recorded as ICN and HKG published them.

Planning around UO631? 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: UO631 Seoul to Hong Kong on-time performance, measured from the ICN and HKG airport boards.

Canonical URL
https://proflightsearch.com/flight/UO631
How we measure this →