ORD to SJC flight delays & on-time performance
Nonstop flights from Chicago O'Hare International Airport to Mineta San Jose International Airport · 1,829 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at ORD or SJC right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Chicago (ORD) to San Jose (SJC) arrived on time 69% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.7% were cancelled, and 14% arrived an hour or more late.
- Departures scheduled around 3pm did best (77% on time); around 7pm did worst (65%).
- Friday was the most reliable day to fly (79% on time) and Monday the least (61%).
- The largest source of delay minutes was late-arriving aircraft (57%).
Which airline is most on time from ORD to SJC?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| American Airlines | 88% | 0.0% | 5 min | 0.0% | 8 |
| United Airlines | 68% | 1.7% | 25 min | 14.2% | 293 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 3pm77%26 flights
- 7pm65%244 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday61%2.1% cancelled
- Tuesday63%0.0% cancelled
- Wednesday68%2.6% cancelled
- Thursday71%2.3% cancelled
- Friday79%0.0% cancelled
- Saturday71%2.4% cancelled
- Sunday67%2.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft57%
- Airline (crew, maintenance, cleaning, fueling)24%
- Air traffic control & airport congestion10%
- Extreme weather9%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather80%
- Airline (crew, maintenance, cleaning, fueling)20%
- Air traffic control & airport congestion0%
- Security0%
ORD to SJC: common questions
- How often are ORD to SJC flights on time?
- 69% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Chicago to San Jose cancelled?
- 1.7% of scheduled flights were cancelled (5 of 301).
- How long are typical delays?
- Across all flights the average arrival delay was 24 min (early arrivals count as zero). Flights that were late arrived 75 min behind schedule on average, and 13.9% of flights were an hour or more late.
- How long is taxi time at ORD?
- Flights on this route spent 27 min taxiing from the gate to takeoff on average.
Related routes
Return trip: SJC to ORD — 91% on time
More flights from Chicago
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: ORD → SJC, nonstop flights by US airlines that report to the DOT. How we calculate this.