FlightRecord

Nashville (BNA) to Chicago (MDW): On-Time Performance

Data through July 2026

The calendar drives reliability on BNA–MDW. October 2024 flights landed on schedule 96% of the time, but June 2026 dropped to 54% — a gap of 42 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 68%), which matters most in the rough months.

On-time
79%
arrived <15 min late
Avg delay
12 min
completed flights
Cancelled
1.1%
Flights/day
5.2
last 12 months
Duration
1h 36m
scheduled
Distance
395 mi

Monthly on-time trend

Monthly on-time percentage for BNA to MDW flights50%75%100%August 2024: 87% on-time (174 flights)87Aug 2024September 2024: 88% on-time (154 flights)88October 2024: 96% on-time (168 flights)96November 2024: 88% on-time (173 flights)88Nov 2024December 2024: 81% on-time (170 flights)81January 2025: 84% on-time (130 flights)84February 2025: 87% on-time (116 flights)87Feb 2025March 2025: 85% on-time (159 flights)85April 2025: 84% on-time (164 flights)84May 2025: 83% on-time (169 flights)83May 2025June 2025: 76% on-time (172 flights)76July 2025: 73% on-time (175 flights)73August 2025: 75% on-time (168 flights)75Aug 2025September 2025: 90% on-time (159 flights)90October 2025: 79% on-time (170 flights)79November 2025: 80% on-time (160 flights)80Nov 2025December 2025: 80% on-time (152 flights)80January 2026: 90% on-time (131 flights)90February 2026: 83% on-time (120 flights)83Feb 2026March 2026: 79% on-time (164 flights)79April 2026: 75% on-time (166 flights)75May 2026: 60% on-time (171 flights)60May 2026June 2026: 54% on-time (157 flights)54July 2026: 56% on-time (176 flights)56

Best time to fly from BNA to MDW

Aim for departures around 5 a.m. (97% on-time); avoid 7 p.m. departures (56%).

On-time percentage by scheduled departure hour, BNA to MDW5 a.m.: 97% on-time (387 flights)56 a.m.: 93% on-time (139 flights)67 a.m.: 94% on-time (292 flights)78 a.m.: 96% on-time (172 flights)89 a.m.: 87% on-time (142 flights)910 a.m.: 83% on-time (180 flights)1011 a.m.: 85% on-time (170 flights)1112 p.m.: 84% on-time (164 flights)121 p.m.: 78% on-time (275 flights)132 p.m.: 84% on-time (172 flights)143 p.m.: 72% on-time (215 flights)154 p.m.: 70% on-time (332 flights)165 p.m.: 67% on-time (119 flights)176 p.m.: 71% on-time (232 flights)187 p.m.: 56% on-time (240 flights)198 p.m.: 75% on-time (301 flights)209 p.m.: 69% on-time (254 flights)2110 p.m.: 68% on-time (208 flights)22scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday76%15 min
Tuesday82%11 min
Wednesday86%7 min
Thursday75%13 min
Friday77%13 min
Saturdaybest87%7 min
Sunday74%15 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft59%
  • Airline operations26%
  • National airspace system12%
  • Weather3%

Frequently asked questions

How often are flights from BNA to MDW delayed?
21% of BNA–MDW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 12 minutes.
What is the best time of day to fly from BNA to MDW?
Departures around 5 a.m. have the best record (97% on-time), while departures around 7 p.m. have the worst (56%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from BNA to MDW?
The scheduled BNA–MDW flight time averages 1h 36m over 395 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
How often are BNA to MDW flights cancelled?
1.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
What is the worst month to fly from BNA to MDW?
June 2026 was the roughest month in this dataset, with only 54% of arrivals on time. The best was October 2024 at 96%. If your dates are flexible, that 42-point gap is worth planning around.

Based on 3,994 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.