GK641Jetstar Japan · NRT → NGS
updated 29m ago
Route confirmed Jetstar Japan

GK641 TokyoNRT · 08:15 NagasakiNGS · 10:40

GK641 by Jetstar Japan flies from Tokyo (NRT) to Nagasaki (NGS) for the Wed, Nov 4 departure.

Right nowLanded in Nagasaki · today
10:25

arrived at NGS · 15 min early

⚖ GK641 typically leaves +7 and lands −5. The air wins minutes back.
Typical gate push+7 minmedian posted departure
Typical arrival−5 minmedian over 11 operations
Wins back in air~12 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 11tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-04
+2 gate · −15 arrival
11-03
+8 gate · +0 arrival
11-02
+28 gate · −10 arrival
11-01
+21 gate · −5 arrival
10-31
+5 gate · −5 arrival
10-30
+5 gate · −15 arrival
10-29
+7 gate · +0 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 −5 min · 0 cancelled · 11 operations tracked

The route today

live boards
NRTTokyoOn-time likelyNRT delay board →
NGSNagasakiOn-time likelyNGS delay board →
NRT→NGSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
27%Chance of 15+ min delay
4.4%Chance of cancellation
+7 minTypical airport delay in this weather

Driven mainly by NRT (Tokyo), currently flying MVFR (marginal visual). 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

Thu 5 Nov, local date

High19°Clikely 17°C to 21°C
Low14°Clikely 13°C to 15°C
  • 97% chance of rain

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 Nagasaki

Forecast

Thu 5 Nov, local date

High22°Clikely 21°C to 24°C
Low17°Clikely 16°C to 18°C
  • 97% chance of rain

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 Nagasaki flights today

same route · Jetstar Japan
GK645departs 08:40

If GK641 is cancelled, this is the other Jetstar Japan nonstop flight from Tokyo to Nagasaki 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 GK641 actually runs

Pro Flight Search has tracked every published board update for GK641 across the NRT and NGS boards: schedule changes, gate pushes and actual clocks. Usually lands ~5 min early. Based on 11 confirmed landings · 11/11 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 GK641 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
11-04NRT 08:15 08:17 (+2)NGS 10:40 10:25 (−15)
11-03NRT 08:15 08:23 (+8)NGS 10:40 (+0)
11-02NRT 08:15 08:43 (+28)NGS 10:40 10:30 (−10)
11-01NRT 08:15 08:36 (+21)NGS 10:40 10:35 (−5)
10-31NRT 08:15 08:20 (+5)NGS 10:40 10:35 (−5)
10-30NRT 08:15 08:20 (+5)NGS 10:40 10:25 (−15)
10-29NRT 08:15 08:22 (+7)NGS 10:40 (+0)
10-28NRT 08:15 08:19 (+4)NGS 10:40 10:35 (−5)
10-27NRT 08:15 08:45 (+30)NGS 10:40 10:50 (+10)
10-26NRT 08:15 08:26 (+11)NGS 10:40 10:30 (−10)
10-25NRT 08:15 08:19 (+4)NGS 10:40 10:30 (−10)

Aircraft

Recent tails: JA24JJ, JA08JJ, JA09JJ, JA06JJ.

Board clocks recorded as NRT and NGS published them.

Planning around GK641? 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: GK641 Tokyo to Nagasaki on-time performance, measured from the NRT and NGS airport boards.

Canonical URL
https://proflightsearch.com/flight/GK641
How we measure this →