Historical on-time performance
Nashville to Boston
942 miData through May 2026Source: US DOT · BTS
Flights on BNA–BOS arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled2.0%of scheduled flights
based on 2,832 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time77%Medianon timep9035 minCancel3.7%Flights482
- Delta Air LinesOn-time70%Medianon timep9080 minCancel0.6%Flights482
- JetBlue AirwaysOn-time68%Medianon timep9065 minCancel2.4%Flights873
- Southwest AirlinesOn-time60%Median5 minp9060 minCancel1.4%Flights995
Why flights run late
Delay causes
- Airline31%
- Weather3%
- Air traffic (NAS)29%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline18%
- Weather54%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 56 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 BNA → BOS
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 — 85% on time.
- Mornings85% on time · p90 20 min · 2,345 flights
- Middays76% on time · p90 50 min · 2,405 flights
- Evenings67% on time · p90 80 min · 2,318 flights
- Afternoons60% on time · p90 85 min · 834 flights
- Overnights55% on time · p90 65 min · 458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 79% on time.
- Saturdays79% on time · p90 40 min · 1,022 flights
- Wednesdays78% on time · p90 45 min · 1,154 flights
- Tuesdays78% on time · p90 45 min · 1,157 flights
- Thursdays71% on time · p90 60 min · 1,242 flights
- Fridays71% on time · p90 60 min · 1,263 flights
- Mondays70% on time · p90 65 min · 1,248 flights
- Sundays69% on time · p90 70 min · 1,274 flights
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