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Route Reliability

Kansas City → Chicago

MCI–MDW · 404 miles · Kansas City International Airport to Chicago Midway International Airport

84
Pretty Reliable
WanderNerd Reliability Score
81%
Arrive within 15 minutes
6 min
Average arrival delay
1.1%
Cancelled
2,097
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 81% of the time across 2,097 flights. No comparison to make.

What the data says

Morning flights do better here.

MCI–MDW flights departing between 3–6 AM arrived on time 93% of the time, versus 66% between 6–9 PM.

Sunday scaries are real for this one.

MCI–MDW flights arrived on time 86% of the time on Wednesdays and just 71% on Sundays. That gap is worth planning around.

Slipping a little lately.

MCI–MDW flights arrived on time 79% of the time over the last three months in the data, compared with 85% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(311 flights)
  • Tue85%(305 flights)
  • Wed86%(309 flights)
  • Thu78%(315 flights)
  • Fri82%(305 flights)
  • Sat84%(223 flights)
  • Sun71%(301 flights)
On-time by departure window
  • 3–6 AM93%(216 flights)
  • 6–9 AM87%(356 flights)
  • 9 AM–12 PM89%(385 flights)
  • 12–3 PM85%(309 flights)
  • 3–6 PM71%(426 flights)
  • 6–9 PM66%(323 flights)
  • 9 PM–12 AM67%(54 flights)
On-time trend by month
76%
May

Jun 81% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202581%194
July 202571%198
August 202578%185
September 202585%178
October 202579%198
November 202585%151
December 202578%165
January 202688%152
February 202690%136
March 202677%167
April 202685%169
May 202676%176

Same trip, other airports

Keep nerding

Based on 2,097 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.