Historical on-time performance
San Antonio to Las Vegas
Flights on SAT–LAS arrive on time 82% of the time over the last 12 months.
based on 1,792 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Spirit AirlinesOn-time84%Medianon timep9020 minCancel1.1%Flights188
- Southwest AirlinesOn-time83%Medianon timep9025 minCancel0.3%Flights1,574
- Frontier AirlinesOn-time67%Medianon timep9070 minCancel0.0%Flights30
Why flights run late
Delay causes
- Airline24%
- Weather4%
- Air traffic (NAS)24%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline43%
- Weather29%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 7 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SAT → LAS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 93% on time.
- Mornings93% on time · p90 5 min · 1,551 flights
- Middays87% on time · p90 20 min · 1,589 flights
- Afternoons76% on time · p90 45 min · 1,371 flights
- Evenings72% on time · p90 50 min · 933 flights
- Overnights71% on time · p90 65 min · 1,228 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 88% on time.
- Wednesdays88% on time · p90 20 min · 841 flights
- Tuesdays86% on time · p90 20 min · 844 flights
- Saturdays86% on time · p90 25 min · 839 flights
- Sundays80% on time · p90 35 min · 1,042 flights
- Mondays79% on time · p90 40 min · 1,050 flights
- Thursdays78% on time · p90 40 min · 998 flights
- Fridays74% on time · p90 50 min · 1,058 flights
Keep exploring