Seattle Paine Field International in December 2025

82.9%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 111 domestic departures from Seattle Paine Field International (PAE). 82.9% left less than 15 minutes late and 83.8% reached their destination on time; 0.0% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so PAE departures were 10.9 points above the national departure figure.

A year earlier, in December 2024, the airport had 104 departures with 79.8% leaving on time: a change of +3.1 points, with flights up 7%.

Flights arriving at PAE that month were on time 79.6% of the time (113 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 41%, national aviation system 32% and late-arriving aircraft 27%.

On time 83.8%
Arrived 15+ minutes late 14.4%
Cancelled 0.0%
Diverted 1.8%

Every scheduled departure from PAE 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	PAE, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	82.9%	79.8%	86.1%	72.0%
Arrived on time	83.8%	84.6%	84.2%	71.9%
Cancelled	0.0%	2.9%	0.9%	1.5%
Average departure delay (late minutes only)	9.7 min	9.5 min	9.4 min	21.2 min
Scheduled departures a day	4	4	4	19,410
Scheduled departures	111	104	1,266	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AS Alaska Airlines	97	87%	85.6%	-4.0 min	0.0%
F9 Frontier Airlines	14	13%	71.4%	9.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PAE–PHX	Everett to Phoenix	64	87.5%	-4.6 min	0.0%
PAE–LAS	Everett to Las Vegas	28	85.7%	2.9 min	0.0%
PAE–HNL	Everett to Honolulu	14	71.4%	-8.8 min	0.0%
PAE–DEN	Everett to Denver	5	60.0%	14.6 min	0.0%

By scheduled departure hour

100

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	41.3%	33.3%	350
Late-arriving aircraft	27.2%	41.1%	231
National Aviation System	31.5%	19.1%	267
Extreme weather	0.0%	6.4%	0
Security	0.0%	0.2%	0

848 delay minutes on 16 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 PAE on time in December 2025?

82.9% of 111 scheduled domestic departures left less than 15 minutes late, and 83.8% 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, 79.8% of 104 departures left on time and 2.9% were cancelled, against 82.9% and 0.0% 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 PAE · methodology · corrections.