BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ORD→SJC

Chicago, IL (ORD) to San Jose, CA (SJC) flight delay odds

65.8% of 301 official scheduled ORD-to-SJC flights arrived on time; 24.9% arrived at least 30 minutes late and 1.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
65.8%arrived on time
24.9%30+ min late
1.7%cancelled
301scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late14.3%all scheduled flights
120+ minutes late6.6%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+17.1 mincompleted flights

Which departure time was most reliable for ORD to SJC?

Only Evening met the ORD-to-SJC departure window threshold: 61.8% of 254 scheduled flights arrived on time during July 2025–June 2026.

Departure windowFlightsOn time30+ minCancelled
Evening25461.8%27.6%2.0%

Which weekday was most reliable for ORD to SJC?

Among qualifying ORD-to-SJC weekday results, Friday had the highest on-time rate: 78.7% of 47 flights. Monday was lowest at 55.3% across 47 flights.

DayFlightsOn time30+ minCancelled
Monday4755.3%23.4%0.0%
Tuesday4163.4%31.7%0.0%
Wednesday3863.2%26.3%2.6%
Thursday4369.8%18.6%7.0%
Friday4778.7%19.1%0.0%
Saturday4269.0%26.2%0.0%
Sunday4360.5%30.2%2.3%

Which airline was most reliable for ORD to SJC?

Only United Airlines met the ORD-to-SJC airline threshold: 65.2% of 293 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines29365.2%25.3%1.7%
American Airlines887.5%12.5%0.0%

Which month was most reliable for ORD to SJC?

Among qualifying ORD-to-SJC month results, September 2025 had the highest on-time rate: 90.0% of 30 flights. July 2025 was lowest at 48.4% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253148.4%35.5%6.5%
August 20253161.3%25.8%3.2%
September 20253090.0%3.3%0.0%
October 20253161.3%29.0%0.0%
November 20253066.7%23.3%0.0%
March 20262766.7%22.2%3.7%
April 20263056.7%40.0%0.0%
May 20263174.2%16.1%0.0%
June 20263060.0%33.3%3.3%

What drove ORD to SJC delay minutes?

Late aircraft was the largest recorded ORD-to-SJC delay category, accounting for 57.8% of 7,296 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.3%
Late aircraft57.8%
National airspace8.6%
Weather10.2%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.