Historical on-time performance
Fort Lauderdale to St. Thomas
1,107 miData through Dec 2025Source: US DOT · BTS
Flights on FLL–STT arrive on time 89% of the time over the last 12 months.
On-time rate89%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 238 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Spirit AirlinesOn-time89%Medianon timep9010 minCancel0.4%Flights238
Why flights run late
Delay causes
- Airline56%
- Weather0%
- Air traffic (NAS)29%
- Late aircraft13%
- Security1%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly FLL → STT
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 89% on time.
- Mornings89% on time · p90 10 min · 665 flights
- Afternoons69% on time · p90 40 min · 132 flights · limited
- Middays65% on time · p90 65 min · 458 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 86% on time.
- Wednesdays86% on time · p90 20 min · 156 flights · limited
- Tuesdays82% on time · p90 35 min · 181 flights · limited
- Fridays81% on time · p90 25 min · 172 flights · limited
- Mondays81% on time · p90 30 min · 175 flights · limited
- Thursdays77% on time · p90 45 min · 185 flights · limited
- Sundays73% on time · p90 40 min · 186 flights · limited
- Saturdays71% on time · p90 55 min · 200 flights
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