JL9999Japan Airlines · CTS → HND
live · 37m ago
Route confirmed Japan Airlines

JL9999 SapporoCTS TokyoHND

JL9999 by Japan Airlines flies from Sapporo (CTS) to Tokyo (HND).

Right nowNext departure tomorrow Operates daily
09:01

scheduled from CTS

The route today

live boards
CTSSapporoOn-time likelyCTS delay board →
HNDTokyoOn-time likelyHND delay board →
CTS→HNDevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
2.5%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at CTS and HND 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 on this route

Forecast

Sapporo to Tokyo with Japan Airlines · Sun 1 Nov, local date

Outlook: about usual
Chance a departure is cancelled
0.3%2.1× usual
Chance a departure leaves 60+ min late
1.6%1.1× usual

Forecast weather: 54% chance of snow and 71% chance of rain at Sapporo

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 17 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 Sapporo to Tokyo flights today

same route · Japan Airlines
JL590departs 07:30
JL500departs 07:40
JL502departs 08:50
JL504departs 09:45
JL506departs 10:30
JL508departs 11:25

If JL9999 is cancelled, these are the other Japan Airlines nonstop flights from Sapporo to Tokyo on the same day, with scheduled departure times in CTS 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 JL9999 actually runs

Pro Flight Search has tracked every published board update for JL9999 across the CTS and HND boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at CTS and HND.

The verdict above is that record speaking, so it reflects how JL9999 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around JL9999? 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: JL9999 Sapporo to Tokyo on-time performance, measured from the CTS and HND airport boards.

Canonical URL
https://proflightsearch.com/flight/JL9999
How we measure this →