Skip to content
WanderNerd
Check a flight

Route Reliability

Chicago → Sacramento

MDW–SMF · 1,790 miles · Chicago Midway International Airport to Sacramento International Airport

75
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
13 min
Average arrival delay
0.8%
Cancelled
664
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 73% of the time across 664 flights. No comparison to make.

What the data says

Morning-you made the right choice.

MDW–SMF flights departing between 6–9 AM arrived on time 87% of the time, versus 52% between 9 PM–12 AM.

Sunday scaries are real for this one.

MDW–SMF flights arrived on time 79% of the time on Saturdays and just 58% on Sundays. That gap is worth planning around.

Recent months have been rougher.

MDW–SMF flights arrived on time 65% of the time over the last three months in the data, compared with 76% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon67%(102 flights)
  • Tue77%(101 flights)
  • Wed76%(103 flights)
  • Thu79%(103 flights)
  • Fri70%(103 flights)
  • Sat79%(80 flights)
  • Sun58%(66 flights)
On-time by departure window
  • 6–9 AM87%(235 flights)
  • 9 AM–12 PM70%(104 flights)
  • 12–3 PM71%(72 flights)
  • 3–6 PM76%(29 flights)
  • 6–9 PM75%(60 flights)
  • 9 PM–12 AM52%(158 flights)
On-time trend by month
66%
May

Jun 70% → May 66% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%73
July 202563%79
August 202571%78
September 202582%78
October 202589%55
November 202593%28
December 202555%31
January 202687%30
February 202686%28
March 202664%56
April 202665%60
May 202666%62

Same trip, other airports

Keep nerding

Based on 664 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.