Alaska Airlines SFO to ORD on-time performance
Alaska Airlines nonstop flights from San Francisco to Chicago · Aug 2025 – Jul 2026
On-time arrivals
53%
arrived < 15 min late
Cancelled
5.3%
1 flights
Avg arrival delay
24 min
50 min when late
Rank on route
#3 of 3
route average 76% on time
Key facts
- Alaska Airlines flights on SFO to ORD arrived on time 53% of the time in Aug 2025 – Jul 2026.
- 5.3% were cancelled, and 12% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (49%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft49%
- Air traffic control & airport congestion27%
- Airline (crew, maintenance, cleaning, fueling)23%
- Extreme weather0%
- Security0%
Other airlines on SFO to ORD
- United Airlines78% on time · 17 min avg delay
- American Airlines73% on time · 29 min avg delay
Full SFO to ORD comparison →
Alaska Airlines on-time record across all routes →
19 Alaska Airlines flights tracked on this route; 1 cancelled, 1 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.