Historical on-time performance
Boston to Jacksonville
1,011 miData through Dec 2025Source: US DOT · BTS
Flights on BOS–JAX arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 1,519 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time70%Medianon timep9060 minCancel1.7%Flights888
- JetBlue AirwaysOn-time74%Medianon timep9055 minCancel2.1%Flights631
Why flights run late
Delay causes
- Airline30%
- Weather4%
- Air traffic (NAS)27%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BOS → JAX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 56% to 83% on time.
- Mornings83% on time · p90 30 min · 1,821 flights
- Middays79% on time · p90 45 min · 431 flights
- Afternoons69% on time · p90 65 min · 1,065 flights
- Evenings64% on time · p90 85 min · 574 flights
- Overnights56% on time · p90 115 min · 129 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Wednesdays80% on time · p90 35 min · 568 flights
- Tuesdays79% on time · p90 45 min · 557 flights
- Saturdays78% on time · p90 55 min · 484 flights
- Fridays75% on time · p90 55 min · 600 flights
- Mondays74% on time · p90 65 min · 612 flights
- Sundays71% on time · p90 75 min · 601 flights
- Thursdays71% on time · p90 55 min · 598 flights
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