OnTimeStats

Historical on-time performance

Chicago to Myrtle Beach

738 miData through Dec 2025Source: US DOT · BTS

Flights on MDW–MYR arrive on time 76% of the time over the last 12 months.

On-time rate76%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 331 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Southwest Airlines
    On-time76%
    Medianon time
    p9030 min
    Cancel0.3%
    Flights331

Why flights run late

Delay causes

  • Airline30%
  • Weather0%
  • Air traffic (NAS)15%
  • Late aircraft55%
  • 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 → MYR

All airlines · rolling 36 months (2023-01 .. 2025-12).

Best time of day

On-time rates are fairly even by time of day on this route — ranging from 57% to 85% on time.

  • Mornings85% on time · p90 20 min · 143 flights · limited
  • Middays82% on time · p90 25 min · 217 flights
  • Afternoons75% on time · p90 40 min · 561 flights
  • Evenings72% on time · p90 35 min · 199 flights · limited
  • Overnights57% on time · p90 70 min · 186 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 68% to 78% on time.

  • Mondays78% on time · p90 35 min · 179 flights · limited
  • Fridays75% on time · p90 35 min · 178 flights · limited
  • Saturdays74% on time · p90 30 min · 195 flights · limited
  • Tuesdays74% on time · p90 45 min · 179 flights · limited
  • Thursdays74% on time · p90 40 min · 178 flights · limited
  • Sundays74% on time · p90 35 min · 217 flights
  • Wednesdays68% on time · p90 45 min · 180 flights · limited
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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.