Nashville (BNA) to Baltimore (BWI): On-Time Performance
Data through May 2026
The calendar drives reliability on BNA–BWI. January 2026 flights landed on schedule 94% of the time, but June 2025 dropped to 68% — a gap of 27 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 67%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 5.1
- last 12 months
- Duration
- 1h 47m
- scheduled
- Distance
- 587 mi
Best airline from BNA to BWI
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 81% | 11 min | 1.6% | 3,721 |
| 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 5 p.m. departures (59%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 14 min |
| Tuesday | 85% | 8 min |
| Wednesdaybest | 89% | 6 min |
| Thursday | 79% | 11 min |
| Friday | 80% | 12 min |
| Saturday | 81% | 9 min |
| Sunday | 78% | 13 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 operations26%
- National airspace system15%
- Weather2%
Frequently asked questions
- How often are flights from BNA to BWI delayed?
- 19% of BNA–BWI 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.
- Which airline is most reliable from BNA to BWI?
- Southwest Airlines has the best on-time record on this route at 81%, based on 3,721 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 5 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 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 19% of the time.
- How often are BNA to BWI flights cancelled?
- 1.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from BNA to BWI?
- June 2025 was the roughest month in this dataset, with only 68% of arrivals on time. The best was January 2026 at 94%. If your dates are flexible, that 27-point gap is worth planning around.
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Based on 3,828 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.