FlightRecord

Chicago (MDW) to Fort Lauderdale (FLL): On-Time Performance

Data through May 2026

When you fly MDW to FLL matters as much as anything else about the booking: the route swung from 92% on-time in November 2024 to just 62% in March 2026. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 69%), which matters most in the rough months.

On-time
77%
arrived <15 min late
Avg delay
14 min
completed flights
Cancelled
1.3%
Flights/day
3.1
last 12 months
Duration
2h 58m
scheduled
Distance
1,167 mi

Monthly on-time trend

Monthly on-time percentage for MDW to FLL flights50%75%100%June 2024: 69% on-time (92 flights)69Jun 2024July 2024: 63% on-time (92 flights)63August 2024: 83% on-time (85 flights)83September 2024: 82% on-time (82 flights)82Sep 2024October 2024: 82% on-time (89 flights)82November 2024: 92% on-time (107 flights)92December 2024: 77% on-time (103 flights)77Dec 2024January 2025: 82% on-time (96 flights)82February 2025: 82% on-time (88 flights)82March 2025: 80% on-time (111 flights)80Mar 2025April 2025: 85% on-time (100 flights)85May 2025: 75% on-time (101 flights)75June 2025: 70% on-time (95 flights)70Jun 2025July 2025: 69% on-time (97 flights)69August 2025: 72% on-time (85 flights)72September 2025: 77% on-time (81 flights)77Sep 2025October 2025: 71% on-time (91 flights)71November 2025: 83% on-time (94 flights)83December 2025: 66% on-time (98 flights)66Dec 2025January 2026: 76% on-time (96 flights)76February 2026: 83% on-time (93 flights)83March 2026: 62% on-time (109 flights)62Mar 2026April 2026: 87% on-time (97 flights)87May 2026: 80% on-time (97 flights)80

Best time to fly from MDW to FLL

Aim for departures around 6 a.m. (95% on-time); avoid 4 p.m. departures (62%).

On-time percentage by scheduled departure hour, MDW to FLL5 a.m.: 94% on-time (133 flights)56 a.m.: 95% on-time (222 flights)67 a.m.: 84% on-time (164 flights)78 a.m.: 78% on-time (205 flights)89 a.m.: 84% on-time (74 flights)910 a.m.: 68% on-time (34 flights)1011 a.m.: 79% on-time (71 flights)1112 p.m.: 77% on-time (114 flights)121 p.m.: 77% on-time (246 flights)132 p.m.: 66% on-time (162 flights)143 p.m.: 73% on-time (109 flights)154 p.m.: 62% on-time (34 flights)165 p.m.: 78% on-time (101 flights)176 p.m.: 70% on-time (281 flights)187 p.m.: 66% on-time (174 flights)198 p.m.: 67% on-time (150 flights)20scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday77%16 min
Tuesday79%15 min
Wednesday80%9 min
Thursday74%17 min
Friday74%16 min
Saturdaybest80%10 min
Sunday74%18 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft40%
  • Airline operations34%
  • National airspace system22%
  • Weather4%
  • Security1%

Frequently asked questions

How often are flights from MDW to FLL delayed?
23% of MDW–FLL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.
What is the best time of day to fly from MDW to FLL?
Departures around 6 a.m. have the best record (95% on-time), while departures around 4 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from MDW to FLL?
The scheduled MDW–FLL flight time averages 2h 58m over 1,167 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
How often are MDW to FLL flights cancelled?
1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from MDW to FLL?
March 2026 was the roughest month in this dataset, with only 62% of arrivals on time. The best was November 2024 at 92%. If your dates are flexible, that 29-point gap is worth planning around.

Based on 2,279 flights, 2024-062026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.