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Route Reliability

San Jose → Chicago

SJC–ORD · 1,829 miles · San José Mineta International Airport to Chicago O'Hare International Airport

95
Nerd Approved
WanderNerd Reliability Score
93%
Arrive within 15 minutes
8 min early
Average arrival delay
1.0%
Cancelled
301
Flights in the data

Data through May 2026.

Airlines on this route

  • United Airlines92% on time · 293 flights
  • American Airlines100% on time · 8 flights

Too little history on this route to call a winner. We rank airlines only after 100 flights each.

What the data says

Departure time hasn't mattered much.

On-time rates stay between 93% and 93% across the day.

Sunday scaries are real for this one.

SJC–ORD flights arrived on time 98% of the time on Mondays. On Sundays: 88%.

Slipping a little lately.

SJC–ORD flights arrived on time 90% of the time over the last three months in the data, compared with 94% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon98%(47 flights)
  • Tue90%(41 flights)
  • Wed95%(38 flights)
  • Thu93%(43 flights)
  • Fri91%(45 flights)
  • Sat93%(41 flights)
  • Sun88%(42 flights)
On-time by departure window
  • 6–9 AM93%(241 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM—(3 flights)
  • 9 PM–12 AM93%(40 flights)
On-time trend by month
90%
May

Jun 93% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202593%29
August 202593%30
September 202593%30
October 202597%31
November 202590%29
December 202592%12
February 2026100%15
March 202689%26
April 202690%30
May 202690%31

Same trip, other airports

Keep nerding

Based on 301 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.