OnTimeStats

Historical on-time performance

Houston to El Paso

667 miData through Dec 2025Source: US DOT · BTS

Flights on IAH–ELP arrive on time 93% of the time over the last 12 months.

On-time rate93%arrived within 15 min
p90 delay10 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights

based on 30 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

By airline

How each carrier compares

  • SkyWest Airlines
    On-time93%
    Medianon time
    p9010 min
    Cancel0.0%
    Flights30

Why flights run late

Delay causes

  • Airline31%
  • Weather0%
  • Air traffic (NAS)11%
  • Late aircraft58%
  • 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 IAH → ELP

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 81% to 83% on time.

  • Afternoons83% on time · p90 25 min · 172 flights · limited
  • Middays81% on time · p90 50 min · 372 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 77% to 88% on time.

  • Saturdays88% on time · p90 15 min · 66 flights · limited
  • Sundays86% on time · p90 30 min · 77 flights · limited
  • Thursdays82% on time · p90 50 min · 84 flights · limited
  • Tuesdays80% on time · p90 60 min · 75 flights · limited
  • Fridays79% on time · p90 35 min · 82 flights · limited
  • Wednesdays79% on time · p90 90 min · 80 flights · limited
  • Mondays77% on time · p90 30 min · 82 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.