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

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

Historically, 89.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 301 flights.

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

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

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

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

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%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

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

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

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%
December 20251291.7%8.3%0.0%
January 20264100.0%0.0%0.0%
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 reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

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.