Baltimore (BWI) to Nashville (BNA): On-Time Performance
Data through July 2026
When you fly BWI to BNA matters as much as anything else about the booking: the route swung from 92% on-time in February 2026 to just 62% in July 2024. 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 70%), which matters most in the rough months.
- On-time
- 80%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 5.0
- last 12 months
- Duration
- 1h 59m
- scheduled
- Distance
- 587 mi
Best airline from BWI to BNA
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 | 1.4% | 3,829 |
| Spirit Airlines | 71% | 26 min | 2.8% | 108 |
Monthly on-time trend
Best time to fly from BWI to BNA
Aim for departures around 7 a.m. (94% on-time); avoid 10 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 14 min |
| Tuesday | 81% | 11 min |
| Wednesdaybest | 83% | 9 min |
| Thursday | 80% | 12 min |
| Friday | 78% | 15 min |
| Saturday | 80% | 14 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 aircraft38%
- Airline operations36%
- National airspace system21%
- Weather4%
- Security1%
Frequently asked questions
- How often are flights from BWI to BNA delayed?
- 20% of BWI–BNA 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 13 minutes.
- Which airline is most reliable from BWI to BNA?
- Southwest Airlines has the best on-time record on this route at 80%, based on 3,829 flights. 2 airlines flew BWI–BNA frequently enough to compare in this period.
- What is the best time of day to fly from BWI to BNA?
- Departures around 7 a.m. have the best record (94% on-time), while departures around 10 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BWI to BNA?
- The scheduled BWI–BNA flight time averages 1h 59m over 587 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are BWI to BNA flights cancelled?
- 1.4% 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 BWI to BNA?
- July 2024 was the roughest month in this dataset, with only 62% of arrivals on time. The best was February 2026 at 92%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 3,937 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.