Historical on-time performance
Baltimore to Nashville
588 miData through May 2026Source: US DOT · BTS
Flights on BWI–BNA arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 1,763 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time79%Medianon timep9035 minCancel1.8%Flights1,763
Why flights run late
Delay causes
- Airline38%
- Weather3%
- Air traffic (NAS)21%
- Late aircraft36%
- Security2%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline13%
- Weather81%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 31 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → BNA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 91% on time.
- Mornings91% on time · p90 10 min · 1,953 flights
- Middays80% on time · p90 25 min · 983 flights
- Afternoons72% on time · p90 50 min · 878 flights
- Evenings69% on time · p90 50 min · 1,147 flights
- Overnights61% on time · p90 70 min · 830 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 81% on time.
- Wednesdays81% on time · p90 30 min · 798 flights
- Tuesdays80% on time · p90 30 min · 805 flights
- Mondays78% on time · p90 35 min · 865 flights
- Thursdays78% on time · p90 35 min · 877 flights
- Saturdays78% on time · p90 35 min · 679 flights
- Fridays75% on time · p90 45 min · 884 flights
- Sundays74% on time · p90 40 min · 883 flights
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