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Route Reliability

Nashville → Chicago

BNA–MDW · 395 miles · Nashville International Airport to Chicago Midway International Airport

81
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
5 min
Average arrival delay
1.3%
Cancelled
1,908
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 80% of the time across 1,908 flights. No comparison to make.

What the data says

Morning flights do better here.

BNA–MDW flights departing between 3–6 AM arrived on time 96% of the time, versus 67% between 9 PM–12 AM.

Sunday scaries are real for this one.

BNA–MDW flights arrived on time 88% of the time on Saturdays. On Sundays: 73%.

Recent months have been rougher.

BNA–MDW flights arrived on time 74% 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
  • Mon77%(287 flights)
  • Tue84%(267 flights)
  • Wed87%(266 flights)
  • Thu77%(285 flights)
  • Fri74%(288 flights)
  • Sat88%(189 flights)
  • Sun73%(293 flights)
On-time by departure window
  • 3–6 AM96%(213 flights)
  • 6–9 AM94%(304 flights)
  • 9 AM–12 PM88%(195 flights)
  • 12–3 PM79%(261 flights)
  • 3–6 PM73%(319 flights)
  • 6–9 PM67%(387 flights)
  • 9 PM–12 AM67%(196 flights)
On-time trend by month
64%
May

Jun 77% → May 64% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%172
July 202575%172
August 202577%164
September 202591%159
October 202581%170
November 202582%154
December 202582%151
January 202690%123
February 202684%119
March 202679%159
April 202678%162
May 202664%170

Same trip, other airports

Keep nerding

Based on 1,908 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.