San Jose (SJC) to Chicago (ORD): On-Time Performance
Data through July 2026
San Jose (SJC) to Chicago (ORD) is a thinner route than most in this dataset — 301 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 92% arrived on time, comfortably above the national average of 78%.
- On-time
- 92%
- arrived <15 min late
- Avg delay
- 6 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 0.82
- last 12 months
- Duration
- 4h 21m
- scheduled
- Distance
- 1,829 mi
Monthly on-time trend
Best time to fly from SJC to ORD
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 93% | 11 min |
| Tuesday | 90% | 3 min |
| Wednesday | 90% | 8 min |
| Thursdaybest | 95% | 5 min |
| Friday | 90% | 5 min |
| Saturday | 90% | 8 min |
| Sunday | 93% | 5 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations42%
- National airspace system31%
Frequently asked questions
- How often are flights from SJC to ORD delayed?
- 8% of SJC–ORD flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 6 minutes.
- How long is the flight from SJC to ORD?
- The scheduled SJC–ORD flight time averages 4h 21m over 1,829 miles. Actual arrival times vary — flights on this route land 15+ minutes late 8% of the time.
- How often are SJC to ORD flights cancelled?
- 1.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from SJC to ORD?
- May 2025 was the roughest month in this dataset, with only 84% of arrivals on time. The best was November 2024 at 100%. If your dates are flexible, that 16-point gap is worth planning around.
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Based on 697 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.