Historical on-time performance
Chicago to Fort Lauderdale
1,166 miData through Dec 2025Source: US DOT · BTS
Flights on MDW–FLL arrive on time 75% of the time over the last 12 months.
On-time rate75%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 1,137 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel1.0%Flights1,137
Why flights run late
Delay causes
- Airline26%
- Weather5%
- Air traffic (NAS)25%
- Late aircraft43%
- Security1%
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 MDW → 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 — 87% on time.
- Mornings87% on time · p90 15 min · 1,246 flights
- Middays75% on time · p90 45 min · 677 flights
- Evenings70% on time · p90 50 min · 720 flights
- Afternoons65% on time · p90 65 min · 653 flights
- Overnights60% on time · p90 75 min · 377 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 82% on time.
- Tuesdays82% on time · p90 35 min · 480 flights
- Mondays77% on time · p90 40 min · 509 flights
- Saturdays75% on time · p90 40 min · 645 flights
- Thursdays74% on time · p90 40 min · 497 flights
- Wednesdays73% on time · p90 40 min · 476 flights
- Fridays72% on time · p90 40 min · 505 flights
- Sundays70% on time · p90 55 min · 561 flights
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