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

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

67.8% of 537 official scheduled MDW-to-SJC flights arrived on time; 18.6% arrived at least 30 minutes late and 1.5% 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
67.8%arrived on time
18.6%30+ min late
1.5%cancelled
537scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late9.5%all scheduled flights
120+ minutes late2.0%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+12.0 mincompleted flights

Which departure time was most reliable for MDW to SJC?

Among qualifying MDW-to-SJC departure window results, Early morning had the highest on-time rate: 83.3% of 156 flights. Evening was lowest at 56.2% across 176 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning15683.3%5.8%0.6%
Late morning12670.6%12.7%0.8%
Afternoon6066.7%26.7%0.0%
Evening17656.2%26.7%2.8%

Which weekday was most reliable for MDW to SJC?

Among qualifying MDW-to-SJC weekday results, Wednesday had the highest on-time rate: 74.4% of 78 flights. Sunday was lowest at 50.7% across 67 flights.

DayFlightsOn time30+ minCancelled
Monday8466.7%20.2%2.4%
Tuesday8172.8%16.0%1.2%
Wednesday7874.4%14.1%1.3%
Thursday8371.1%13.3%2.4%
Friday8369.9%13.3%0.0%
Saturday6165.6%19.7%3.3%
Sunday6750.7%37.3%0.0%

Which airline was most reliable for MDW to SJC?

Only Southwest Airlines met the MDW-to-SJC airline threshold: 67.8% of 537 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines53767.8%18.6%1.5%

Which month was most reliable for MDW to SJC?

Among qualifying MDW-to-SJC month results, February 2026 had the highest on-time rate: 89.5% of 19 flights. June 2026 was lowest at 48.3% across 60 flights.

MonthFlightsOn time30+ minCancelled
July 20257972.2%17.7%0.0%
August 20255576.4%10.9%1.8%
September 20255271.2%11.5%0.0%
October 20253259.4%21.9%0.0%
November 20253080.0%10.0%6.7%
December 20253177.4%16.1%0.0%
February 20261989.5%5.3%0.0%
March 20265257.7%28.8%3.8%
April 20265664.3%19.6%1.8%
May 20265768.4%22.8%0.0%
June 20266048.3%30.0%3.3%

What drove MDW to SJC delay minutes?

Late aircraft was the largest recorded MDW-to-SJC delay category, accounting for 48.8% of 8,406 BTS-attributed delay minutes during July 2025–June 2026.

Airline37.0%
Late aircraft48.8%
National airspace13.5%
Weather0.7%
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.