OnTimeRoutes
C

Alaska Airlines SAN to ORD on-time performance

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

On-time arrivals
72%
arrived < 15 min late
Cancelled
2.3%
18 flights
Avg arrival delay
19 min
62 min when late
Rank on route
#3 of 4
route average 78% on time

Key facts

  • Alaska Airlines flights on SAN to ORD arrived on time 72% of the time in Aug 2025 – Jul 2026.
  • 2.3% were cancelled, and 10% arrived an hour or more late.
  • That ranks #3 of 4 airlines on this route, which averaged 78% on time overall.
  • The largest source of delay minutes was air traffic control & airport congestion (55%).

On-time trend by month

40%70%100%October 2025: 81.8% on time, 3.8% cancelledOct ’25November 2025: 53.0% on time, 4.5% cancelledNov ’25December 2025: 67.1% on time, 6.8% cancelledDec ’25January 2026: 87.7% on time, 0.0% cancelledJan ’26February 2026: 91.1% on time, 0.0% cancelledFeb ’26March 2026: 72.7% on time, 2.9% cancelledMar ’26April 2026: 79.7% on time, 0.0% cancelledApr ’26May 2026: 77.2% on time, 0.0% cancelledMay ’26June 2026: 60.5% on time, 1.2% cancelledJun ’26July 2026: 60.7% on time, 2.2% 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 congestion55%
  • Late-arriving aircraft25%
  • Airline (crew, maintenance, cleaning, fueling)17%
  • Extreme weather3%
  • Security0%

Other airlines on SAN to ORD

Full SAN to ORD comparison →
Alaska Airlines on-time record across all routes →

777 Alaska Airlines flights tracked on this route; 18 cancelled, 12 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.