Juneau International in August 2025

81.2%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 515 domestic departures from Juneau International (JNU). 81.2% left less than 15 minutes late and 79.8% reached their destination on time; 1.7% were cancelled.

Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so JNU departures were 4.4 points above the national departure figure.

A year earlier, in August 2024, the airport had 519 departures with 80.7% leaving on time: a change of +0.5 points, with flights down 1%.

Flights arriving at JNU that month were on time 78.8% of the time (514 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 43%, air carrier 42% and national aviation system 15%.

On time 79.8%
Arrived 15+ minutes late 18.3%
Cancelled 1.7%
Diverted 0.2%

Every scheduled departure from JNU 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	JNU, 12 months to Jul 2026	All reported flights, Aug 2025
Departed on time	81.2%	80.7%	83.0%	76.8%
Arrived on time	79.8%	80.3%	80.4%	76.3%
Cancelled	1.7%	1.7%	2.1%	1.1%
Average departure delay (late minutes only)	11.5 min	13.7 min	11.7 min	17.6 min
Scheduled departures a day	17	17	13	20,079
Scheduled departures	515	519	4,716	602,378

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	484	94%	78.7%	3.4 min	1.9%
DL Delta Air Lines	31	6%	96.8%	-6.8 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
JNU–SEA	Juneau to Seattle	205	75.6%	10.6 min	1.0%
JNU–ANC	Juneau to Anchorage	124	79.0%	2.9 min	3.2%
JNU–SIT	Juneau to Sitka	62	83.9%	-6.1 min	1.6%
JNU–GST	Juneau to Gustavus	31	80.6%	-8.8 min	6.5%
JNU–KTN	Juneau to Ketchikan	31	93.5%	-12.2 min	0.0%
JNU–PSG	Juneau to Petersburg	31	80.6%	6.8 min	0.0%
JNU–YAK	Juneau to Yakutat	31	87.1%	-10.1 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	41.5%	33.1%	2,331
Late-arriving aircraft	43.0%	40.5%	2,414
National Aviation System	14.9%	19.2%	837
Extreme weather	0.0%	7.0%	0
Security	0.6%	0.1%	35

5,617 delay minutes on 94 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 JNU on time in August 2025?

81.2% of 515 scheduled domestic departures left less than 15 minutes late, and 79.8% 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, 80.7% of 519 departures left on time and 1.7% were cancelled, against 81.2% and 1.7% 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 JNU · methodology · corrections.