OnTimeRoutes
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Alaska Airlines PDX to SAN on-time performance

Alaska Airlines nonstop flights from Portland to San Diego · Aug 2025 – Jul 2026

On-time arrivals
77%
arrived < 15 min late
Cancelled
0.9%
14 flights
Avg arrival delay
11 min
39 min when late
Rank on route
#2 of 3
route average 77% on time

Key facts

  • Alaska Airlines flights on PDX to SAN arrived on time 77% of the time in Aug 2025 – Jul 2026.
  • 0.9% were cancelled, and 3% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 77% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (43%).

On-time trend by month

50%75%100%July 2025: 83.0% on time, 1.3% cancelledJul ’25August 2025: 76.9% on time, 1.4% cancelledAug ’25September 2025: 86.8% on time, 0.8% cancelledSep ’25October 2025: 73.0% on time, 0.7% cancelledOct ’25November 2025: 68.5% on time, 0.0% cancelledNov ’25December 2025: 67.3% on time, 1.3% cancelledDec ’25January 2026: 79.8% on time, 0.8% cancelledJan ’26February 2026: 81.9% on time, 0.0% cancelledFeb ’26March 2026: 85.3% on time, 0.8% cancelledMar ’26April 2026: 90.9% on time, 1.5% cancelledApr ’26May 2026: 83.1% on time, 0.0% cancelledMay ’26June 2026: 73.7% on time, 1.7% cancelledJun ’26July 2026: 65.0% on time, 1.6% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Air traffic control & airport congestion43%
  • Late-arriving aircraft33%
  • Airline (crew, maintenance, cleaning, fueling)23%
  • Extreme weather1%
  • Security0%

Other airlines on PDX to SAN

1,581 Alaska Airlines flights tracked on this route; 14 cancelled, 2 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.