Ted Stevens Anchorage International in September 2023

86.1%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 2023, reporting carriers scheduled 1,564 domestic departures from Ted Stevens Anchorage International (ANC). 86.1% left less than 15 minutes late and 84.2% reached their destination on time; 0.5% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so ANC departures were 5.6 points above the national departure figure.

Flights arriving at ANC that month were on time 83.1% of the time (1,559 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 43%, late-arriving aircraft 31% and national aviation system 19%.

On time 84.2%
Arrived 15+ minutes late 15.0%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from ANC in September 2023, judged by arrival at the destination.

September 2023 against a year earlier, the airport's year and the nation

Measure	Sep 2023	Year earlier	ANC, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	86.1%	—	82.7%	80.5%
Arrived on time	84.2%	—	83.5%	80.1%
Cancelled	0.5%	—	1.1%	1.2%
Average departure delay (late minutes only)	7.8 min	—	11.7 min	14.1 min
Scheduled departures a day	52	—	55	18,978
Scheduled departures	1,564	—	20,008	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	1,220	78%	83.4%	0.3 min	0.6%
DL Delta Air Lines	224	14%	90.6%	-7.4 min	0.4%
UA United Airlines	80	5%	86.3%	6.8 min	0.0%
AA American Airlines	40	3%	67.5%	3.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ANC–SEA	Anchorage to Seattle	698	83.0%	0.8 min	0.0%
ANC–JNU	Anchorage to Juneau	119	97.5%	-6.0 min	0.0%
ANC–ADQ	Anchorage to Kodiak	88	87.5%	-8.0 min	3.4%
ANC–ORD	Anchorage to Chicago	73	76.7%	-0.9 min	1.4%
ANC–MSP	Anchorage to Minneapolis	66	87.9%	-5.9 min	1.5%
ANC–BET	Anchorage to Bethel	60	75.0%	12.8 min	3.3%
ANC–DEN	Anchorage to Denver	38	86.8%	18.1 min	0.0%
ANC–DFW	Anchorage to Dallas/Fort Worth	35	65.7%	4.1 min	0.0%
ANC–SCC	Anchorage to Deadhorse	34	91.2%	-9.4 min	0.0%
ANC–OME	Anchorage to Nome	32	75.0%	5.9 min	0.0%
ANC–LAX	Anchorage to Los Angeles	31	80.6%	-0.7 min	0.0%
ANC–AKN	Anchorage to King Salmon	30	100.0%	-11.8 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 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	42.7%	36.4%	4,506
Late-arriving aircraft	31.2%	38.3%	3,296
National Aviation System	19.2%	19.9%	2,029
Extreme weather	6.2%	5.1%	656
Security	0.6%	0.2%	68

10,555 delay minutes on 235 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 ANC on time in September 2023?

86.1% of 1,564 scheduled domestic departures left less than 15 minutes late, and 84.2% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 2022 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for ANC · methodology · corrections.