OnTimeStats

Historical on-time performance

Newark to Wilmington

488 miData through Dec 2025Source: US DOT · BTS

Flights on EWR–ILM arrive on time 74% of the time over the last 12 months.

On-time rate74%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled3.8%of scheduled flights

based on 157 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Republic Airways
    On-time74%
    Medianon time
    p9030 min
    Cancel3.8%
    Flights157

Why flights run late

Delay causes

  • Airline19%
  • Weather0%
  • Air traffic (NAS)39%
  • Late aircraft42%
  • 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 EWR → ILM

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 68% to 88% on time.

  • Middays88% on time · p90 20 min · 346 flights
  • Afternoons83% on time · p90 15 min · 150 flights · limited
  • Overnights69% on time · p90 50 min · 389 flights
  • Evenings68% on time · p90 45 min · 56 flights · limited

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 85% on time.

  • Tuesdays85% on time · p90 15 min · 136 flights · limited
  • Wednesdays84% on time · p90 15 min · 138 flights · limited
  • Saturdays78% on time · p90 25 min · 116 flights · limited
  • Mondays78% on time · p90 30 min · 142 flights · limited
  • Thursdays76% on time · p90 55 min · 137 flights · limited
  • Fridays75% on time · p90 50 min · 138 flights · limited
  • Sundays71% on time · p90 40 min · 134 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.