Alaska Airlines ORD to SFO on-time performance
Alaska Airlines nonstop flights from Chicago to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
56%
arrived < 15 min late
Cancelled
5.3%
1 flights
Avg arrival delay
27 min
58 min when late
Rank on route
#3 of 3
route average 68% on time
Key facts
- Alaska Airlines flights on ORD to SFO arrived on time 56% of the time in Aug 2025 – Jul 2026.
- 5.3% were cancelled, and 22% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 68% on time overall.
- The largest source of delay minutes was late-arriving aircraft (74%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft74%
- Air traffic control & airport congestion18%
- Extreme weather5%
- Airline (crew, maintenance, cleaning, fueling)3%
- Security0%
Other airlines on ORD to SFO
- United Airlines70% on time · 24 min avg delay
- American Airlines63% on time · 29 min avg delay
Full ORD to SFO comparison →
Alaska Airlines on-time record across all routes →
19 Alaska Airlines flights tracked on this route; 1 cancelled, 0 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.