Nashville (BNA) to Baltimore (BWI): On-Time Performance
Data through July 2026
The calendar drives reliability on BNA–BWI. January 2026 flights landed on schedule 94% of the time, but July 2026 dropped to 55% — a gap of 39 points. Across the full period the route averages 80% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 64%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 5.0
- last 12 months
- Duration
- 1h 47m
- scheduled
- Distance
- 587 mi
Best airline from BNA to BWI
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 80% | 12 min | 1.6% | 3,849 |
| Spirit Airlines | 74% | 16 min | 2.8% | 107 |
Monthly on-time trend
Best time to fly from BNA to BWI
Aim for departures around 5 a.m. (98% on-time); avoid 8 p.m. departures (50%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 15 min |
| Tuesday | 85% | 9 min |
| Wednesdaybest | 87% | 7 min |
| Thursday | 77% | 13 min |
| Friday | 78% | 14 min |
| Saturday | 80% | 11 min |
| Sunday | 77% | 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 aircraft57%
- Airline operations25%
- National airspace system16%
- Weather2%
- Security1%
Frequently asked questions
- How often are flights from BNA to BWI delayed?
- 20% of BNA–BWI 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.
- Which airline is most reliable from BNA to BWI?
- Southwest Airlines has the best on-time record on this route at 80%, based on 3,849 flights. 2 airlines flew BNA–BWI frequently enough to compare in this period.
- What is the best time of day to fly from BNA to BWI?
- Departures around 5 a.m. have the best record (98% on-time), while departures around 8 p.m. have the worst (50%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BNA to BWI?
- The scheduled BNA–BWI flight time averages 1h 47m over 587 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are BNA to BWI flights cancelled?
- 1.6% 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 BWI?
- July 2026 was the roughest month in this dataset, with only 55% of arrivals on time. The best was January 2026 at 94%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 3,956 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.