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

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

89.4% of 301 official scheduled SJC-to-ORD flights arrived on time; 4.0% arrived at least 30 minutes late and 1.3% 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 SIGNALLower disruption
89.4%arrived on time
4.0%30+ min late
1.3%cancelled
301scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late1.7%all scheduled flights
120+ minutes late0.7%all scheduled flights
Diverted0.3%did not reach as scheduled
Average arrival-10.2 mincompleted flights

Which departure time was most reliable for SJC to ORD?

Among qualifying SJC-to-ORD departure window results, Night had the highest on-time rate: 92.5% of 40 flights. Early morning was lowest at 88.6% across 245 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning24588.6%3.3%1.6%
Night4092.5%7.5%0.0%

Which weekday was most reliable for SJC to ORD?

Among qualifying SJC-to-ORD weekday results, Monday had the highest on-time rate: 97.9% of 47 flights. Friday was lowest at 84.8% across 46 flights.

DayFlightsOn time30+ minCancelled
Monday4797.9%2.1%0.0%
Tuesday4285.7%4.8%0.0%
Wednesday3889.5%2.6%0.0%
Thursday4493.2%0.0%2.3%
Friday4684.8%6.5%4.3%
Saturday4386.0%4.7%2.3%
Sunday4187.8%7.3%0.0%

Which airline was most reliable for SJC to ORD?

Only United Airlines met the SJC-to-ORD airline threshold: 89.1% of 293 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
United Airlines29389.1%4.1%1.4%
American Airlines8100.0%0.0%0.0%

Which month was most reliable for SJC to ORD?

Among qualifying SJC-to-ORD month results, February 2026 had the highest on-time rate: 100.0% of 15 flights. June 2026 was lowest at 83.3% across 30 flights.

MonthFlightsOn time30+ minCancelled
July 20253187.1%3.2%3.2%
August 20253190.3%3.2%3.2%
September 20253093.3%0.0%0.0%
October 20253193.5%3.2%0.0%
November 20253083.3%6.7%3.3%
February 202615100.0%0.0%0.0%
March 20262688.5%11.5%0.0%
April 20263090.0%6.7%0.0%
May 20263187.1%0.0%0.0%
June 20263083.3%3.3%3.3%

What drove SJC to ORD delay minutes?

National airspace was the largest recorded SJC-to-ORD delay category, accounting for 52.8% of 1,201 BTS-attributed delay minutes during July 2025–June 2026.

Airline28.6%
Late aircraft18.6%
National airspace52.8%
Weather0.0%
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.