Historical on-time performance
Fort Lauderdale to St. Thomas
1,107 miData through May 2026Source: US DOT · BTS
Flights on FLL–STT arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.2%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-time72%Medianon timep9070 minCancel1.2%Flights169
Why flights run late
Delay causes
- Airline43%
- Weather0%
- Air traffic (NAS)44%
- Late aircraft13%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline50%
- Weather50%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 2 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 FLL → STT
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 — 89% on time.
- Mornings89% on time · p90 15 min · 681 flights
- Afternoons69% on time · p90 40 min · 132 flights · limited
- Middays57% on time · p90 75 min · 411 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 84% on time.
- Wednesdays84% on time · p90 25 min · 148 flights · limited
- Tuesdays81% on time · p90 40 min · 172 flights · limited
- Fridays79% on time · p90 25 min · 171 flights · limited
- Mondays77% on time · p90 35 min · 171 flights · limited
- Thursdays75% on time · p90 55 min · 183 flights · limited
- Sundays71% on time · p90 45 min · 182 flights · limited
- Saturdays68% on time · p90 60 min · 197 flights · limited
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