Alaska Airlines in September 2024

79.1%arrived 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 September 2024, Alaska Airlines (AS) reported 21,548 scheduled domestic flights. 79.1% arrived on time, 0.6% were cancelled and 0.2% diverted.

All reporting carriers together recorded 83.9% on time and 0.6% cancelled that month, so the carrier was 4.8 points below the combined figure.

A year earlier, in September 2023, it reported 21,426 flights with 82.0% on time: a change of −2.9 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 36%, air carrier 31% and national aviation system 30%.

On time 79.1%
Arrived 15+ minutes late 20.1%
Cancelled 0.6%
Diverted 0.2%

Every scheduled domestic flight reported by Alaska Airlines in September 2024.

September 2024 against a year earlier, the carrier's year and all carriers

Measure	Sep 2024	Sep 2023	AS, 12 months to Jul 2026	All carriers, Sep 2024
Arrived on time	79.1%	82.0%	78.5%	83.9%
Departed on time	82.6%	83.8%	79.0%	84.4%
Cancelled	0.6%	0.4%	1.2%	0.6%
Average arrival delay	2.9 min	1.6 min	2.9 min	1.0 min
Scheduled flights a day	718	714	826	19,421
Scheduled flights	21,548	21,426	301,435	582,622

87 airports and 321 routes had AS flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
SEA Seattle	7,222	74.7%	6.1 min	0.5%
PDX Portland	1,456	85.3%	0.6 min	0.6%
ANC Anchorage	1,279	86.0%	-1.0 min	0.2%
SAN San Diego	879	77.5%	5.6 min	0.8%
SFO San Francisco	865	72.4%	5.3 min	1.2%
LAX Los Angeles	749	85.6%	-1.7 min	0.7%
LAS Las Vegas	432	69.4%	13.0 min	1.2%
JNU Juneau	408	86.0%	-1.5 min	1.5%
PHX Phoenix	384	83.6%	0.6 min	0.5%
HNL Honolulu	360	84.4%	-4.5 min	0.3%
SNA Santa Ana	348	86.8%	-1.1 min	1.7%
JFK New York	300	89.3%	-10.2 min	0.0%
EWR Newark	296	81.8%	0.4 min	1.0%
ORD Chicago	291	81.4%	-3.5 min	0.0%
SJC San Jose	260	78.8%	2.4 min	2.3%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of AS flights that arrived on time, by scheduled departure hour (local time at each origin), September 2024.

Delay causes

BTS cause category	Share of delay minutes	All carriers, Sep 2024	Minutes
Air carrier	31.1%	38.6%	60,360
Late-arriving aircraft	36.3%	38.4%	70,563
National Aviation System	29.5%	18.2%	57,276
Extreme weather	2.7%	4.8%	5,280
Security	0.4%	0.1%	789

194,268 delay minutes on 4,323 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

What share of Alaska Airlines flights were on time in September 2024?

79.1% of 21,548 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 83.9% that month.

How does that compare with a year earlier?

In September 2023 the carrier reported 21,426 flights with 82.0% on time and 0.4% cancelled, against 79.1% and 0.6% in September 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for September 2024; public domain. Domestic scheduled flights, totals and averages only. The site's data runs through July 2026. Full record for Alaska Airlines · methodology · corrections.