Ketchikan International in September 2025

83.3%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In September 2025, reporting carriers scheduled 210 domestic departures from Ketchikan International (KTN). 83.3% left less than 15 minutes late and 81.9% reached their destination on time; 1.9% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so KTN departures were level with the national departure figure.

A year earlier, in September 2024, the airport had 212 departures with 89.2% leaving on time: a change of −5.9 points, with flights down 1%.

Flights arriving at KTN that month were on time 85.2% of the time (210 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 59%, air carrier 24% and extreme weather 10%.

On time 81.9%
Arrived 15+ minutes late 15.2%
Cancelled 1.9%
Diverted 1.0%

Every scheduled departure from KTN in September 2025, judged by arrival at the destination.

September 2025 against a year earlier, the airport's year and the nation

Measure	Sep 2025	Sep 2024	KTN, 12 months to Jul 2026	All reported flights, Sep 2025
Departed on time	83.3%	89.2%	79.3%	83.1%
Arrived on time	81.9%	85.8%	79.3%	82.8%
Cancelled	1.9%	0.9%	2.9%	0.5%
Average departure delay (late minutes only)	13.4 min	6.7 min	13.4 min	12.2 min
Scheduled departures a day	7	7	7	18,748
Scheduled departures	210	212	2,392	562,439

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	210	100%	81.9%	1.5 min	1.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
KTN–SEA	Ketchikan to Seattle	120	83.3%	4.8 min	1.7%
KTN–JNU	Ketchikan to Juneau	30	90.0%	-14.8 min	0.0%
KTN–SIT	Ketchikan to Sitka	30	80.0%	-2.6 min	6.7%
KTN–WRG	Ketchikan to Wrangell	30	70.0%	9.2 min	0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), September 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2025	Minutes
Air carrier	23.6%	34.3%	556
Late-arriving aircraft	58.8%	37.4%	1,385
National Aviation System	7.7%	22.6%	182
Extreme weather	9.8%	5.6%	231
Security	0.0%	0.1%	0

2,354 delay minutes on 32 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left KTN on time in September 2025?

83.3% of 210 scheduled domestic departures left less than 15 minutes late, and 81.9% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 89.2% of 212 departures left on time and 0.9% were cancelled, against 83.3% and 1.9% in September 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for KTN · methodology · corrections.