OnTimeStats

Historical on-time performance

Chicago to Fort Myers

1,105 miData through Dec 2025Source: US DOT · BTS

Flights on MDW–RSW arrive on time 78% of the time over the last 12 months.

On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights

based on 1,164 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time78%
    Medianon time
    p9035 min
    Cancel0.6%
    Flights1,164

Why flights run late

Delay causes

  • Airline34%
  • Weather2%
  • Air traffic (NAS)23%
  • Late aircraft41%
  • 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 MDW → RSW

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 · 1,211 flights
  • Middays76% on time · p90 30 min · 746 flights
  • Evenings71% on time · p90 45 min · 744 flights
  • Afternoons66% on time · p90 60 min · 410 flights
  • Overnights57% on time · p90 85 min · 398 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 77% on time.

  • Mondays77% on time · p90 35 min · 520 flights
  • Saturdays76% on time · p90 35 min · 532 flights
  • Fridays76% on time · p90 45 min · 520 flights
  • Tuesdays75% on time · p90 35 min · 496 flights
  • Thursdays75% on time · p90 45 min · 515 flights
  • Sundays74% on time · p90 55 min · 432 flights
  • Wednesdays73% on time · p90 40 min · 494 flights
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Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.