Historical on-time performance
St. Louis to Fort Lauderdale
1,056 miData through Dec 2025Source: US DOT · BTS
Flights on STL–FLL arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 733 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9040 minCancel0.8%Flights733
Why flights run late
Delay causes
- Airline23%
- Weather6%
- Air traffic (NAS)20%
- Late aircraft51%
- 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 STL → FLL
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 — 86% on time.
- Mornings86% on time · p90 20 min · 829 flights
- Middays72% on time · p90 45 min · 270 flights
- Evenings71% on time · p90 50 min · 644 flights
- Afternoons67% on time · p90 55 min · 408 flights
- Overnights62% on time · p90 65 min · 252 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 79% on time.
- Tuesdays79% on time · p90 25 min · 285 flights
- Wednesdays79% on time · p90 35 min · 230 flights
- Mondays78% on time · p90 25 min · 257 flights
- Thursdays75% on time · p90 45 min · 339 flights
- Fridays74% on time · p90 50 min · 254 flights
- Saturdays74% on time · p90 45 min · 525 flights
- Sundays70% on time · p90 50 min · 513 flights
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