Ted Stevens Anchorage International in April 2025

85.8%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 April 2025, reporting carriers scheduled 1,211 domestic departures from Ted Stevens Anchorage International (ANC). 85.8% left less than 15 minutes late and 83.2% reached their destination on time; 0.7% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so ANC departures were 5.2 points above the national departure figure.

A year earlier, in April 2024, the airport had 1,322 departures with 82.8% leaving on time: a change of +3.0 points, with flights down 8%.

Flights arriving at ANC that month were on time 76.6% of the time (1,211 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 37% and national aviation system 22%.

On time 83.2%
Arrived 15+ minutes late 15.9%
Cancelled 0.7%
Diverted 0.2%

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

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

Measure	Apr 2025	Apr 2024	ANC, 12 months to Jul 2026	All reported flights, Apr 2025
Departed on time	85.8%	82.8%	82.7%	80.6%
Arrived on time	83.2%	83.4%	83.5%	79.5%
Cancelled	0.7%	1.3%	1.1%	0.8%
Average departure delay (late minutes only)	9.1 min	10.1 min	11.7 min	14.1 min
Scheduled departures a day	40	44	55	19,465
Scheduled departures	1,211	1,322	20,008	583,950

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	985	81%	82.9%	-0.3 min	0.8%
DL Delta Air Lines	136	11%	89.0%	-10.6 min	0.0%
UA United Airlines	60	5%	95.0%	-16.7 min	1.7%
AA American Airlines	30	2%	43.3%	88.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
ANC–SEA	Anchorage to Seattle	492	85.4%	-4.7 min	0.2%
ANC–JNU	Anchorage to Juneau	90	83.3%	0.1 min	0.0%
ANC–FAI	Anchorage to Fairbanks	77	89.6%	-1.9 min	1.3%
ANC–ADQ	Anchorage to Kodiak	60	75.0%	5.9 min	3.3%
ANC–BET	Anchorage to Bethel	60	80.0%	5.8 min	1.7%
ANC–SCC	Anchorage to Deadhorse	48	77.1%	4.0 min	2.1%
ANC–ORD	Anchorage to Chicago	37	97.3%	-22.2 min	0.0%
ANC–OTZ	Anchorage to Kotzebue	31	83.9%	-3.4 min	3.2%
ANC–BRW	Anchorage to Barrow	30	66.7%	25.4 min	3.3%
ANC–CDV	Anchorage to Cordova	30	90.0%	3.0 min	0.0%
ANC–DEN	Anchorage to Denver	30	93.3%	-13.8 min	3.3%
ANC–DFW	Anchorage to Dallas/Fort Worth	30	43.3%	88.4 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), April 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Apr 2025	Minutes
Air carrier	37.3%	32.7%	3,938
Late-arriving aircraft	39.7%	39.4%	4,192
National Aviation System	21.5%	22.2%	2,268
Extreme weather	1.6%	5.5%	169
Security	0.0%	0.2%	0

10,567 delay minutes on 192 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 April 2025?

85.8% of 1,211 scheduled domestic departures left less than 15 minutes late, and 83.2% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 82.8% of 1,322 departures left on time and 1.3% were cancelled, against 85.8% and 0.7% in April 2025.

Provenance

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