Chicago (MDW) to Nashville (BNA): On-Time Performance
Data through May 2026
Chicago (MDW) to Nashville (BNA) effectively runs on two schedules. In November 2024, 92% of arrivals were on time; in July 2025 that fell to 70% — a 22-point seasonal swing. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 71%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.9%
- Flights/day
- 5.2
- last 12 months
- Duration
- 1h 28m
- scheduled
- Distance
- 395 mi
Monthly on-time trend
Best time to fly from MDW to BNA
Aim for departures around 6 a.m. (97% on-time); avoid 9 p.m. departures (61%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 12 min |
| Tuesdaybest | 88% | 8 min |
| Wednesday | 84% | 9 min |
| Thursday | 81% | 11 min |
| Friday | 81% | 11 min |
| Saturday | 83% | 9 min |
| Sunday | 82% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft52%
- Airline operations29%
- National airspace system17%
- Weather3%
Frequently asked questions
- How often are flights from MDW to BNA delayed?
- 17% of MDW–BNA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from MDW to BNA?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 9 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MDW to BNA?
- The scheduled MDW–BNA flight time averages 1h 28m over 395 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are MDW to BNA flights cancelled?
- 0.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from MDW to BNA?
- July 2025 was the roughest month in this dataset, with only 70% of arrivals on time. The best was November 2024 at 92%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 3,838 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.