OnTimeStats

Historical on-time performance

Chicago to Myrtle Beach

753 miData through Dec 2025Source: US DOT · BTS

Flights on ORD–MYR 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)
Cancelled0.0%of scheduled flights

based on 97 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

Too close to call — no single carrier is clearly more on-time here.

  • Envoy Air
    On-time81%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights31
  • United Airlines
    On-time73%
    Medianon time
    p9040 min
    Cancel0.0%
    Flights66

Why flights run late

Delay causes

  • Airline26%
  • Weather1%
  • Air traffic (NAS)21%
  • 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 ORD → 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 75% to 85% on time.

  • Afternoons85% on time · p90 40 min · 66 flights · limited
  • Mornings80% on time · p90 40 min · 536 flights
  • Middays75% on time · p90 40 min · 334 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 88% on time.

  • Tuesdays88% on time · p90 20 min · 106 flights · limited
  • Wednesdays83% on time · p90 20 min · 105 flights · limited
  • Sundays82% on time · p90 40 min · 137 flights · limited
  • Mondays80% on time · p90 40 min · 130 flights · limited
  • Thursdays78% on time · p90 40 min · 129 flights · limited
  • Fridays76% on time · p90 40 min · 132 flights · limited
  • Saturdays71% on time · p90 65 min · 197 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.