OnTimeStats

Historical on-time performance

Newark to Santa Ana

2,433 miData through Dec 2025Source: US DOT · BTS

Flights on EWR–SNA arrive on time 81% of the time over the last 12 months.

On-time rate81%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights

based on 1,088 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • United Airlines
    On-time81%
    Medianon time
    p9035 min
    Cancel1.2%
    Flights1,088

Why flights run late

Delay causes

  • Airline25%
  • Weather6%
  • Air traffic (NAS)28%
  • 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 EWR → SNA

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 — 88% on time.

  • Mornings88% on time · p90 15 min · 1,095 flights
  • Middays81% on time · p90 45 min · 629 flights
  • Afternoons79% on time · p90 50 min · 488 flights
  • Evenings75% on time · p90 35 min · 1,053 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 73% to 86% on time.

  • Tuesdays86% on time · p90 15 min · 470 flights
  • Fridays83% on time · p90 35 min · 466 flights
  • Wednesdays83% on time · p90 25 min · 471 flights
  • Thursdays82% on time · p90 25 min · 462 flights
  • Saturdays81% on time · p90 30 min · 458 flights
  • Mondays80% on time · p90 35 min · 469 flights
  • Sundays73% on time · p90 45 min · 469 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.