Historical on-time performance
St. Thomas to Fort Lauderdale
1,107 miData through May 2026Source: US DOT · BTS
Flights on STT–FLL arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 169 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesOn-time71%Medianon timep9075 minCancel1.8%Flights169
Why flights run late
Delay causes
- Airline8%
- Weather0%
- Air traffic (NAS)47%
- Late aircraft45%
- Security1%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline33%
- Weather67%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 3 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 STT → FLL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 85% on time.
- Middays85% on time · p90 20 min · 666 flights
- Evenings66% on time · p90 55 min · 453 flights
- Afternoons46% on time · p90 105 min · 105 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 81% on time.
- Wednesdays81% on time · p90 25 min · 148 flights · limited
- Fridays80% on time · p90 25 min · 172 flights · limited
- Mondays75% on time · p90 45 min · 171 flights · limited
- Thursdays73% on time · p90 55 min · 183 flights · limited
- Sundays73% on time · p90 50 min · 181 flights · limited
- Tuesdays73% on time · p90 60 min · 172 flights · limited
- Saturdays67% on time · p90 70 min · 197 flights · limited
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