On-time performance

Karat (AKT) on-time performance, September 2026

1,206 scheduled Karat departures in US airspace in September 2026, 75.6% of them on time. Measured from FAA departure data, updated every morning.

1 September to 30 September 2026 · Free to quote with credit to PlaneTrack (CC BY 4.0)

1,206
departures
75.6%
on time (within 15 min)
9.5%
45+ min late
9.9 min
average departure delay

On time, day by day

Share of Karat departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Saturday 19 September at 62.5%. Best: Monday 14 September at 91.9%.

60%70%80%90%100%2026-09-01: 40 departures, 72.5% on time2026-09-02: 48 departures, 66.7% on time2026-09-03: 37 departures, 67.6% on time2026-09-04: 51 departures, 70.6% on time2026-09-05: 37 departures, 64.9% on time2026-09-06: 27 departures, 77.8% on time2026-09-07: 32 departures, 84.4% on time2026-09-08: 58 departures, 77.6% on time2026-09-09: 58 departures, 86.2% on time2026-09-10: 39 departures, 74.4% on time2026-09-11: 46 departures, 71.7% on time2026-09-12: 32 departures, 87.5% on time2026-09-13: 29 departures, 89.7% on time2026-09-14: 37 departures, 91.9% on time2026-09-15: 43 departures, 74.4% on time2026-09-16: 53 departures, 66.0% on time2026-09-17: 40 departures, 82.5% on time2026-09-18: 38 departures, 71.1% on time2026-09-19: 40 departures, 62.5% on time2026-09-20: 31 departures, 80.6% on time2026-09-21: 36 departures, 86.1% on time2026-09-22: 38 departures, 81.6% on time2026-09-23: 47 departures, 76.6% on time2026-09-24: 29 departures, 82.8% on time2026-09-25: 37 departures, 67.6% on time2026-09-26: 37 departures, 67.6% on time2026-09-27: 33 departures, 78.8% on time2026-09-28: 38 departures, 84.2% on time2026-09-29: 46 departures, 67.4% on time2026-09-30: 49 departures, 71.4% on time2026-09-01: 72.5% on time (40 departures)012026-09-02: 66.7% on time (48 departures)2026-09-03: 67.6% on time (37 departures)2026-09-04: 70.6% on time (51 departures)042026-09-05: 64.9% on time (37 departures)2026-09-06: 77.8% on time (27 departures)2026-09-07: 84.4% on time (32 departures)072026-09-08: 77.6% on time (58 departures)2026-09-09: 86.2% on time (58 departures)2026-09-10: 74.4% on time (39 departures)102026-09-11: 71.7% on time (46 departures)2026-09-12: 87.5% on time (32 departures)2026-09-13: 89.7% on time (29 departures)132026-09-14: 91.9% on time (37 departures)2026-09-15: 74.4% on time (43 departures)2026-09-16: 66.0% on time (53 departures)162026-09-17: 82.5% on time (40 departures)2026-09-18: 71.1% on time (38 departures)2026-09-19: 62.5% on time (40 departures)192026-09-20: 80.6% on time (31 departures)2026-09-21: 86.1% on time (36 departures)2026-09-22: 81.6% on time (38 departures)222026-09-23: 76.6% on time (47 departures)2026-09-24: 82.8% on time (29 departures)2026-09-25: 67.6% on time (37 departures)252026-09-26: 67.6% on time (37 departures)2026-09-27: 78.8% on time (33 departures)2026-09-28: 84.2% on time (38 departures)282026-09-29: 67.4% on time (46 departures)2026-09-30: 71.4% on time (49 departures)30

Airports, ranked by on-time share

Airports with at least 30 Karat departures in the month.

AirportDeparturesOn time45+ min lateAvg delay (min)
YYC Calgary7797.4%0.0%-10.3
YEG Edmonton10390.3%2.9%-3.2
HZP Fort Mackay10283.3%1.0%1.8
YOW Ottawa3881.6%5.3%8.3
YFB Iqaluit22678.8%8.8%9.9
YCB Cambridge Bay5269.2%9.6%11.8
YZF Yellowknife11760.7%20.5%33.5
YYH Spence Bay3158.1%22.6%36.5
YHK Gjoa Haven3253.1%18.8%29.5

Least punctual routes

Routes with at least 20 Karat departures, lowest on-time share first.

RouteFlightsOn timeAvg delay
YZF to YEG Yellowknife to Edmonton3938.5%43.7
YCB to YZF Cambridge Bay to Yellowknife3262.5%9.9
YZF to YHK Yellowknife to Gjoa Haven2564.0%55.6
YFB to YAB Iqaluit to Arctic Bay2166.7%11.8
YCY to YFB Clyde River to Iqaluit2070.0%9.2
YFB to YTE Iqaluit to Cape Dorset2770.4%15.6
YFB to YXP Iqaluit to Pangnirtung4173.2%8.1
YZF to YCB Yellowknife to Cambridge Bay2774.1%14.1
YXP to YFB Pangnirtung to Iqaluit2576.0%4.8
YTE to YFB Cape Dorset to Iqaluit2181.0%5.6

Busiest routes

The ten routes Karat flew most this month.

RouteFlightsOn timeAvg delay
HZP to YEG Fort Mackay to Edmonton5381.1%2.9
CAL4 to YEG to Edmonton4887.5%-4.6
YFB to YXP Iqaluit to Pangnirtung4173.2%8.1
HZP to YYC Fort Mackay to Calgary4190.2%-1.1
YZF to YEG Yellowknife to Edmonton3938.5%43.7
YYC to YEG Calgary to Edmonton3397.0%-12.5
YOW to YFB Ottawa to Iqaluit3284.4%8.5
YCB to YZF Cambridge Bay to Yellowknife3262.5%9.9
YEG to YYC Edmonton to Calgary31100.0%-16.8
YEG to HZP Edmonton to Fort Mackay2892.9%-5.5

Go deeper: every flight behind these numbers

The airport month-pack has the whole month for one airport: movements by operator and aircraft type, go-arounds, holding, and departure delays by airline and destination, as a web report, PDF and CSV. No account needed.

Get the full month-pack for YFB, $49 Free 7-day sample See a sample month-pack (SFO)

Other months for Karat

September 2026

All US airports and airlines, September 2026

How we measure

On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.

Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).

Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).