Aero K Delay Rate, Cancellations & On-Time Performance RF

On-time departure and arrival rates compiled from operational records, covering every flight operated to and from Japan. Switch the period with the tabs below.

Delay rate 3.7% Delay rate is the share of flights departing more than 15 minutes after schedule (100% − on-time departure)

Cancellation: 0% / Avg delay when late: 31min

Last 28 days ・ 611 flights ・ Includes estimates 116 estimated

Some airlines do not publish gate departure/arrival times. For those flights we estimate the gate times from the takeoff/landing record and the airport's measured taxi times (validated at 3.5 min mean error, 94.4% agreement on the on-time call). Without the estimate, those airlines' flights would drop out of the sample entirely and cross-airline comparison would break.

DailyWeeklyMonthly

Daily · Last 30 days

On-time departureOn timeDelayed

80%90%100%020 100%83.3%100%2026-09-0613 flightsOn time 13 ・ Delayed 0100%2026-09-0713 flightsOn time 13 ・ Delayed 092.3%2026-09-0813 flightsOn time 12 ・ Delayed 183.3%2026-09-0912 flights ・ Avg delay when late +29minOn time 10 ・ Delayed 2100%2026-09-1012 flightsOn time 12 ・ Delayed 0100%2026-09-1113 flightsOn time 13 ・ Delayed 0100%2026-09-1213 flightsOn time 13 ・ Delayed 0100%2026-09-1313 flightsOn time 13 ・ Delayed 090%2026-09-1410 flightsOn time 9 ・ Delayed 190.9%2026-09-1511 flightsOn time 10 ・ Delayed 191.7%2026-09-1612 flights ・ Avg delay when late +58minOn time 11 ・ Delayed 192.3%2026-09-1713 flights ・ Avg delay when late +17minOn time 12 ・ Delayed 192.3%2026-09-1813 flightsOn time 12 ・ Delayed 1100%2026-09-1915 flightsOn time 15 ・ Delayed 0100%2026-09-2012 flightsOn time 12 ・ Delayed 090%2026-09-2110 flights ・ Avg delay when late +25minOn time 9 ・ Delayed 1100%2026-09-2211 flightsOn time 11 ・ Delayed 0100%2026-09-2313 flightsOn time 13 ・ Delayed 0100%2026-09-2412 flightsOn time 12 ・ Delayed 0100%2026-09-2513 flightsOn time 13 ・ Delayed 092.3%2026-09-2613 flights ・ Avg delay when late +17minOn time 12 ・ Delayed 192.3%2026-09-2713 flightsOn time 12 ・ Delayed 191.7%2026-09-2812 flights ・ Avg delay when late +40minOn time 11 ・ Delayed 1100%2026-09-2910 flightsOn time 10 ・ Delayed 0100%2026-09-3010 flightsOn time 10 ・ Delayed 0100%2026-10-0112 flightsOn time 12 ・ Delayed 0100%2026-10-0212 flightsOn time 12 ・ Delayed 092.9%2026-10-0314 flightsOn time 13 ・ Delayed 1100%2026-10-04 (Provisional)7 flightsOn time 7 ・ Delayed 0100%2026-10-05 (Provisional)7 flightsOn time 7 ・ Delayed 0

Sep 6Sep 12Sep 18Sep 24Oct 5

Line = on-time departure rate (left axis); bars = flights operated (right axis), stacked as on-time and delayed. Hover (or tap) a point for the breakdown and the average delay of delayed flights. The green band marks 90% on-time departures and above. Dashed segments and pale bars are provisional, before the actuals are final.

Weekly · Last 12 weeks (from Monday)

On-time departureOn timeDelayed

80%90%100%0100 100%89.3%96.1%Week of 2026-07-2076 flights ・ Avg delay when late +19minOn time 73 ・ Delayed 393.8%Week of 2026-07-2796 flights ・ Avg delay when late +39minOn time 90 ・ Delayed 689.9%Week of 2026-08-0389 flights ・ Avg delay when late +43minOn time 80 ・ Delayed 991.4%Week of 2026-08-1093 flights ・ Avg delay when late +33minOn time 85 ・ Delayed 892.3%Week of 2026-08-1791 flights ・ Avg delay when late +24minOn time 84 ・ Delayed 789.3%Week of 2026-08-2484 flights ・ Avg delay when late +38minOn time 75 ・ Delayed 997.7%Week of 2026-08-3188 flights ・ Avg delay when late +16minOn time 86 ・ Delayed 296.6%Week of 2026-09-0789 flights ・ Avg delay when late +29minOn time 86 ・ Delayed 394.2%Week of 2026-09-1486 flights ・ Avg delay when late +38minOn time 81 ・ Delayed 596.5%Week of 2026-09-2185 flights ・ Avg delay when late +21minOn time 82 ・ Delayed 397.4%Week of 2026-09-28 (Provisional)77 flights ・ Avg delay when late +40minOn time 75 ・ Delayed 2100%Week of 2026-10-05 (Provisional)7 flightsOn time 7 ・ Delayed 0

Jul 20Aug 10Aug 31Oct 5

Monthly · Last 12 months

On-time departureOn timeDelayed

80%90%100%0500 98.1%90.9%95.2%2026-07145 flights ・ Avg delay when late +33minOn time 138 ・ Delayed 790.9%2026-08396 flights ・ Avg delay when late +34minOn time 360 ・ Delayed 3696.5%2026-09368 flights ・ Avg delay when late +29minOn time 355 ・ Delayed 1398.1%2026-10 (Provisional)52 flightsOn time 51 ・ Delayed 1

JulAugSepOct

“Provisional” values are preliminary. The last 2 days are still being corrected, so they may change slightly.

By route

Last 24 months

Most punctual

	Dep	n	Arr
Chubu Centrair→Cheongju NGO-CJJ	100.0%	n=73	—
Kitakyushu→Cheongju KKJ-CJJ	98.6%	n=72	—
Fukuoka→Cheongju FUK-CJJ	97.7%	n=88	—
Kansai→Cheongju KIX-CJJ	96.6%	n=175	—

Least punctual

	Dep	n	Arr
Naha→Cheongju OKA-CJJ	84.2%	n=76	—
New Chitose→Cheongju CTS-CJJ	90.3%	n=155	—
Hiroshima→Cheongju HIJ-CJJ	91.9%	n=37	—
Narita→Cheongju NRT-CJJ	92.3%	n=183	—

Routes flown

Routes not in the ranking above, ordered by flights in the last 28 days. The route pages show every airline's record.

Want to check Aero K's on-time departure rate on other routes?

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Domestic / International

	On-time departure		Avg delay when late	n
International		96.3%	+31min	n=325

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

By aircraft type

	On-time departure		Avg delay when late	n
Narrow-body
A320		96.3%	+31min	n=325

Avg delay when late counts only flights that departed more than 15 minutes behind schedule / Variants of the same type (B788, B789, B78X and so on) are grouped into one row.

By departure time

	On-time departure		Avg delay when late	n
6:00-9:00		96.2%	+58min	n=26
9:00-12:00		98.5%	+21min	n=131
12:00-15:00		100%	—	n=27
15:00-18:00		87.5%	+29min	n=48
18:00-21:00		96.7%	+26min	n=91
21:00-24:00	—	Collecting data	—	n=2

Avg delay when late counts only flights that departed more than 15 minutes behind schedule

By day of week Last 24 months

Mon

Dep

93.5%n=123

Arr

90.5%n=105

Tue

Dep

89.6%n=115

Arr

92.1%n=101

Wed

Dep

96.9%n=127

Arr

93.4%n=106

Thu

Dep

88.9%n=135

Arr

93%n=115

Fri

Dep

95.8%n=144

Arr

97.4%n=116

Sat

Dep

95%n=140

Arr

91.5%n=117

Sun

Dep

96.4%n=140

Arr

91.9%n=111

See the full aircraft rotation history

Ship charts and fleet rotation show the last 3 days to everyone. Standard members (¥280/month) get the last 27 days for aircraft of Japanese airlines. The on-time data itself is free for all.

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Updated: 2026-10-06 / Last 28 days