OnTimeStats

Historical on-time performance

Detroit to Santa Ana

1,960 miData through Dec 2025Source: US DOT · BTS

Flights on DTW–SNA arrive on time 56% of the time over the last 12 months.

On-time rate56%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 61 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • Delta Air Lines
    On-time56%
    Median10 min
    p9060 min
    Cancel0.0%
    Flights61

Why flights run late

Delay causes

  • Airline59%
  • Weather3%
  • Air traffic (NAS)33%
  • Late aircraft4%
  • Security0%

Most delay minutes here are attributed to Airline.

Over time

On-time trend

By season

On-time rate by month

When to fly

Best time to fly DTW → SNA

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

Best day of week

On-time rates are fairly even by day on this route — ranging from 71% to 84% on time.

  • Wednesdays84% on time · p90 20 min · 155 flights · limited
  • Sundays80% on time · p90 25 min · 145 flights · limited
  • Mondays78% on time · p90 50 min · 155 flights · limited
  • Thursdays74% on time · p90 35 min · 151 flights · limited
  • Tuesdays73% on time · p90 35 min · 51 flights · limited
  • Fridays71% on time · p90 55 min · 154 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.