OnTimeStats

Historical on-time performance

Los Angeles to San Antonio

1,211 miData through Dec 2025Source: US DOT · BTS

Flights on LAX–SAT arrive on time 85% of the time over the last 12 months.

On-time rate85%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights

based on 1,735 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.

  • Spirit Airlines
    On-time86%
    Medianon time
    p9020 min
    Cancel1.8%
    Flights168
  • SkyWest Airlines
    On-time87%
    Medianon time
    p9020 min
    Cancel0.2%
    Flights472
  • Delta Air Lines
    On-time82%
    Medianon time
    p9040 min
    Cancel0.3%
    Flights693
  • American Airlines
    On-time93%
    Medianon time
    p90on time
    Cancel0.0%
    Flights61
  • Southwest Airlines
    On-time84%
    Medianon time
    p9020 min
    Cancel0.0%
    Flights341

Why flights run late

Delay causes

  • Airline49%
  • Weather2%
  • Air traffic (NAS)8%
  • Late aircraft41%
  • 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 LAX → SAT

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 — 87% on time.

  • Mornings87% on time · p90 20 min · 2,549 flights
  • Afternoons82% on time · p90 30 min · 441 flights
  • Middays79% on time · p90 30 min · 935 flights
  • Evenings75% on time · p90 55 min · 2,314 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 79% to 84% on time.

  • Saturdays84% on time · p90 35 min · 769 flights
  • Tuesdays82% on time · p90 30 min · 847 flights
  • Wednesdays81% on time · p90 30 min · 854 flights
  • Fridays81% on time · p90 35 min · 952 flights
  • Mondays80% on time · p90 35 min · 966 flights
  • Thursdays80% on time · p90 40 min · 958 flights
  • Sundays79% on time · p90 35 min · 936 flights
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Keep exploring

Related pages

Delay predictorfor this route→LAX airportLos Angeles→SAT airportSan Antonio→Continental Airlines on this routecarrier detail→Continental Airlinesairline profile→

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.