Juneau International in December 2025

66.1%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 December 2025, reporting carriers scheduled 327 domestic departures from Juneau International (JNU). 66.1% left less than 15 minutes late and 60.9% reached their destination on time; 5.8% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so JNU departures were 5.9 points below the national departure figure.

A year earlier, in December 2024, the airport had 334 departures with 82.9% leaving on time: a change of −16.8 points, with flights down 2%.

Flights arriving at JNU that month were on time 68.6% of the time (328 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, national aviation system 25% and extreme weather 21%.

On time 60.9%
Arrived 15+ minutes late 29.1%
Cancelled 5.8%
Diverted 4.3%

Every scheduled departure from JNU in December 2025, judged by arrival at the destination.

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

Measure	Dec 2025	Dec 2024	JNU, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	66.1%	82.9%	83.0%	72.0%
Arrived on time	60.9%	78.7%	80.4%	71.9%
Cancelled	5.8%	2.1%	2.1%	1.5%
Average departure delay (late minutes only)	21.3 min	13.0 min	11.7 min	21.2 min
Scheduled departures a day	11	11	13	19,410
Scheduled departures	327	334	4,716	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	327	100%	60.9%	16.8 min	5.8%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
JNU–ANC	Juneau to Anchorage	89	55.1%	28.4 min	9.0%
JNU–SEA	Juneau to Seattle	89	64.0%	10.4 min	7.9%
JNU–SIT	Juneau to Sitka	59	66.1%	8.7 min	5.1%
JNU–KTN	Juneau to Ketchikan	30	56.7%	31.5 min	3.3%
JNU–PSG	Juneau to Petersburg	30	53.3%	14.6 min	0.0%
JNU–YAK	Juneau to Yakutat	30	70.0%	4.4 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), December 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	9.2%	33.3%	653
Late-arriving aircraft	44.5%	41.1%	3,159
National Aviation System	24.7%	19.1%	1,752
Extreme weather	21.2%	6.4%	1,506
Security	0.3%	0.2%	23

7,093 delay minutes on 95 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 December 2025?

66.1% of 327 scheduled domestic departures left less than 15 minutes late, and 60.9% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 82.9% of 334 departures left on time and 2.1% were cancelled, against 66.1% and 5.8% in December 2025.

Provenance

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