OnTimeRoutes
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Southwest Airlines MSP to MDW on-time performance

Southwest Airlines nonstop flights from Minneapolis to Chicago · Aug 2025 – Jul 2026

On-time arrivals
79%
arrived < 15 min late
Cancelled
1.8%
28 flights
Avg arrival delay
12 min
52 min when late
Rank on route
#1 of 2
route average 78% on time

Key facts

  • Southwest Airlines flights on MSP to MDW arrived on time 79% of the time in Aug 2025 – Jul 2026.
  • 1.8% were cancelled, and 5% arrived an hour or more late.
  • That ranks #1 of 2 airlines on this route, which averaged 78% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (50%).

On-time trend by month

50%75%100%July 2025: 73.1% on time, 1.9% cancelledJul ’25August 2025: 78.1% on time, 0.7% cancelledAug ’25September 2025: 78.7% on time, 0.7% cancelledSep ’25October 2025: 87.7% on time, 0.0% cancelledOct ’25November 2025: 87.2% on time, 8.6% cancelledNov ’25December 2025: 65.4% on time, 0.7% cancelledDec ’25January 2026: 82.0% on time, 1.0% cancelledJan ’26February 2026: 86.3% on time, 0.0% cancelledFeb ’26March 2026: 74.8% on time, 5.2% cancelledMar ’26April 2026: 85.2% on time, 0.0% cancelledApr ’26May 2026: 84.7% on time, 0.0% cancelledMay ’26June 2026: 69.5% on time, 1.4% cancelledJun ’26July 2026: 75.9% on time, 2.7% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, cleaning, fueling)24%
  • Air traffic control & airport congestion22%
  • Extreme weather3%
  • Security0%

Other airlines on MSP to MDW

1,593 Southwest Airlines flights tracked on this route; 28 cancelled, 4 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.