Historical on-time performance
Boston to Fort Lauderdale
Flights on BOS–FLL arrive on time 64% of the time over the last 12 months.
based on 3,444 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.
- Delta Air LinesOn-time67%Medianon timep9070 minCancel2.9%Flights883
- JetBlue AirwaysOn-time63%Medianon timep9075 minCancel3.1%Flights1,960
- Spirit AirlinesOn-time60%Medianon timep9095 minCancel4.8%Flights601
Why flights run late
Delay causes
- Airline29%
- Weather2%
- Air traffic (NAS)34%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather51%
- Air traffic (NAS)24%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 116 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 BOS → FLL
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 — 78% on time.
- Mornings78% on time · p90 35 min · 3,688 flights
- Middays67% on time · p90 70 min · 1,637 flights
- Afternoons61% on time · p90 80 min · 2,043 flights
- Evenings57% on time · p90 100 min · 1,494 flights
- Overnights51% on time · p90 115 min · 980 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 59% to 73% on time.
- Wednesdays73% on time · p90 50 min · 1,320 flights
- Tuesdays72% on time · p90 50 min · 1,318 flights
- Saturdays68% on time · p90 85 min · 1,374 flights
- Thursdays66% on time · p90 75 min · 1,436 flights
- Fridays66% on time · p90 60 min · 1,463 flights
- Mondays64% on time · p90 80 min · 1,470 flights
- Sundays59% on time · p90 110 min · 1,461 flights
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