Alaska Airlines in May 2026

82.4%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 May 2026, Alaska Airlines (AS) reported 29,184 scheduled domestic flights. 82.4% arrived on time, 0.7% were cancelled and 0.2% diverted.

All reporting carriers together recorded 77.6% on time and 0.9% cancelled that month, so the carrier was 4.8 points above the combined figure.

A year earlier, in May 2025, it reported 21,751 flights with 74.3% on time: a change of +8.1 points.

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, air carrier 34% and national aviation system 25%.

On time 82.4%
Arrived 15+ minutes late 16.7%
Cancelled 0.7%
Diverted 0.2%

Every scheduled domestic flight reported by Alaska Airlines in May 2026.

May 2026 against a year earlier, the carrier's year and all carriers

Measure	May 2026	May 2025	AS, 12 months to Jul 2026	All carriers, May 2026
Arrived on time	82.4%	74.3%	78.5%	77.6%
Departed on time	80.8%	78.8%	79.0%	77.1%
Cancelled	0.7%	0.6%	1.2%	0.9%
Average arrival delay	-0.6 min	7.0 min	2.9 min	6.2 min
Scheduled flights a day	973	725	826	20,391
Scheduled flights	29,184	21,751	301,435	611,735

85 airports and 407 routes had AS flights that month.

Busiest airports that month

Airport	Departures	On time	Avg arrival delay	Cancelled
SEA Seattle	6,823	82.4%	-3.1 min	0.4%
HNL Honolulu	2,911	76.8%	8.9 min	1.7%
PDX Portland	2,071	85.7%	-3.8 min	0.2%
ANC Anchorage	1,342	91.5%	-7.4 min	0.5%
OGG Kahului	1,272	81.7%	4.7 min	0.9%
SAN San Diego	1,179	83.7%	-3.7 min	0.7%
LAX Los Angeles	1,028	77.6%	3.1 min	0.6%
SFO San Francisco	1,010	68.2%	8.9 min	0.7%
LIH Lihue	874	76.5%	8.1 min	2.4%
KOA Kona	827	79.6%	4.5 min	1.3%
LAS Las Vegas	642	76.3%	3.9 min	0.8%
PHX Phoenix	467	92.1%	-6.6 min	0.4%
ITO Hilo	413	70.9%	12.7 min	1.0%
JNU Juneau	397	87.4%	-6.8 min	0.8%
SNA Santa Ana	367	93.7%	-8.4 min	0.5%

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), May 2026.

Delay causes

BTS cause category	Share of delay minutes	All carriers, May 2026	Minutes
Air carrier	33.7%	33.0%	77,827
Late-arriving aircraft	36.8%	40.4%	85,185
National Aviation System	25.0%	20.5%	57,722
Extreme weather	4.2%	6.0%	9,709
Security	0.3%	0.1%	795

231,238 delay minutes on 4,865 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 May 2026?

82.4% of 29,184 scheduled domestic flights arrived less than 15 minutes late; all reporting carriers together recorded 77.6% that month.

How does that compare with a year earlier?

In May 2025 the carrier reported 21,751 flights with 74.3% on time and 0.6% cancelled, against 82.4% and 0.7% in May 2026.

Provenance

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