Nashville (BNA) to Chicago (MDW): On-Time Performance
Data through May 2026
The calendar drives reliability on BNA–MDW. October 2024 flights landed on schedule 96% of the time, but May 2026 dropped to 60% — a gap of 36 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 71%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 5.2
- last 12 months
- Duration
- 1h 36m
- scheduled
- Distance
- 395 mi
Monthly on-time trend
Best time to fly from BNA to MDW
Aim for departures around 5 a.m. (96% on-time); avoid 7 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 13 min |
| Tuesday | 84% | 9 min |
| Wednesdaybest | 88% | 6 min |
| Thursday | 77% | 13 min |
| Friday | 79% | 12 min |
| Saturday | 88% | 6 min |
| Sunday | 76% | 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 operations25%
- National airspace system13%
- Weather3%
Frequently asked questions
- How often are flights from BNA to MDW delayed?
- 19% of BNA–MDW 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 BNA to MDW?
- Departures around 5 a.m. have the best record (96% on-time), while departures around 7 p.m. have the worst (59%). 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 19% of the time.
- How often are BNA to MDW flights cancelled?
- 1.1% 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 BNA to MDW?
- May 2026 was the roughest month in this dataset, with only 60% of arrivals on time. The best was October 2024 at 96%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 3,830 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.