SJC to ORD flight delays & on-time performance
Nonstop flights from Mineta San Jose International Airport to Chicago O'Hare International Airport · 1,829 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SJC or ORD right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from San Jose (SJC) to Chicago (ORD) arrived on time 91% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.7% were cancelled, and 1% arrived an hour or more late.
- Departures scheduled around 10pm did best (93% on time); around 6am did worst (91%).
- Monday was the most reliable day to fly (98% on time) and Friday the least (87%).
- The largest source of delay minutes was air traffic control & airport congestion (58%).
Which airline is most on time from SJC to ORD?
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 | 100% | 0.0% | 3 min | 0.0% | 8 |
| United Airlines | 91% | 1.7% | 5 min | 1.4% | 293 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 6am91%245 flights
- 10pm93%40 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday98%0.0% cancelled
- Tuesday88%2.4% cancelled
- Wednesday89%0.0% cancelled
- Thursday95%2.3% cancelled
- Friday87%2.1% cancelled
- Saturday93%2.3% cancelled
- Sunday88%2.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Air traffic control & airport congestion58%
- Airline (crew, maintenance, cleaning, fueling)22%
- Late-arriving aircraft20%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather80%
- Airline (crew, maintenance, cleaning, fueling)20%
- Air traffic control & airport congestion0%
- Security0%
SJC to ORD: common questions
- How often are SJC to ORD flights on time?
- 91% 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 San Jose to Chicago cancelled?
- 1.7% of scheduled flights were cancelled (5 of 301).
- How long are typical delays?
- Across all flights the average arrival delay was 4 min (early arrivals count as zero). Flights that were late arrived 43 min behind schedule on average, and 1.4% of flights were an hour or more late.
- How long is taxi time at SJC?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: ORD to SJC — 69% on time
More flights from San Jose
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SJC → ORD, nonstop flights by US airlines that report to the DOT. How we calculate this.