Ted Stevens Anchorage International in August 2025

79.6%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 August 2025, reporting carriers scheduled 2,228 domestic departures from Ted Stevens Anchorage International (ANC). 79.6% left less than 15 minutes late and 78.3% reached their destination on time; 1.0% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so ANC departures were 2.8 points above the national departure figure.

A year earlier, in August 2024, the airport had 2,236 departures with 80.2% leaving on time: a change of −0.6 points, with flights down 0%.

Flights arriving at ANC that month were on time 74.7% of the time (2,228 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 39%, late-arriving aircraft 39% and national aviation system 19%.

On time 78.3%
Arrived 15+ minutes late 20.6%
Cancelled 1.0%
Diverted 0.1%

Every scheduled departure from ANC in August 2025, judged by arrival at the destination.

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

Measure	Aug 2025	Aug 2024	ANC, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	79.6%	80.2%	82.7%	76.8%
Arrived on time	78.3%	81.3%	83.5%	76.3%
Cancelled	1.0%	1.0%	1.1%	1.1%
Average departure delay (late minutes only)	12.7 min	12.9 min	11.7 min	17.6 min
Scheduled departures a day	74	75	55	20,079
Scheduled departures	2,228	2,236	20,008	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	1,484	67%	79.7%	3.0 min	1.5%
DL Delta Air Lines	352	16%	80.1%	5.1 min	0.0%
UA United Airlines	248	11%	81.5%	-0.6 min	0.4%
AA American Airlines	93	4%	67.7%	29.5 min	0.0%
HA Hawaiian Airlines	51	2%	27.5%	56.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ANC–SEA	Anchorage to Seattle	726	76.3%	5.6 min	1.0%
ANC–ORD	Anchorage to Chicago	143	72.0%	7.0 min	0.7%
ANC–JNU	Anchorage to Juneau	124	87.1%	0.4 min	0.0%
ANC–MSP	Anchorage to Minneapolis	114	84.2%	1.6 min	0.0%
ANC–DEN	Anchorage to Denver	96	83.3%	-0.3 min	0.0%
ANC–ADQ	Anchorage to Kodiak	93	79.6%	-1.7 min	4.3%
ANC–PDX	Anchorage to Portland	93	87.1%	1.7 min	0.0%
ANC–FAI	Anchorage to Fairbanks	68	91.2%	-7.2 min	0.0%
ANC–SFO	Anchorage to San Francisco	67	85.1%	-2.0 min	0.0%
ANC–BET	Anchorage to Bethel	62	77.4%	8.2 min	1.6%
ANC–DFW	Anchorage to Dallas/Fort Worth	62	72.6%	34.4 min	0.0%
ANC–SCC	Anchorage to Deadhorse	42	85.7%	-1.0 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), August 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Aug 2025	Minutes
Air carrier	38.8%	33.1%	9,988
Late-arriving aircraft	38.8%	40.5%	9,972
National Aviation System	19.3%	19.2%	4,959
Extreme weather	2.3%	7.0%	582
Security	0.9%	0.1%	222

25,723 delay minutes on 459 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 August 2025?

79.6% of 2,228 scheduled domestic departures left less than 15 minutes late, and 78.3% reached their destination on time. The national figures that month were 76.8% and 76.3%.

How does that compare with a year earlier?

In August 2024, 80.2% of 2,236 departures left on time and 1.0% were cancelled, against 79.6% and 1.0% in August 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; 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.