Route Reliability
Las Vegas → San Antonio
LAS–SAT · 1,069 miles · Harry Reid International Airport to San Antonio International Airport
- 77%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0.3%
- Cancelled
- 2,080
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Frontier Airlines88%258 flights
- 2.Spirit Airlines83%248 flights
- 3.Southwest Airlines75%1,574 flights
What the data says
Morning-you made the right choice.
LAS–SAT flights departing between 3–6 AM arrived on time 100% of the time, versus 61% between 9 PM–12 AM.
Sunday scaries are real for this one.
LAS–SAT flights arrived on time 88% of the time on Saturdays and just 72% on Sundays. That gap is worth planning around.
Frontier Airlines runs this route best.
Frontier Airlines arrived on time 88% of the time on this route; Southwest Airlines managed 75%.
It basically never cancels.
Out of 2,080 scheduled flights, only 0.3% were cancelled.
Flights on this route
The breakdown
- Mon78%(328 flights)
- Tue80%(265 flights)
- Wed81%(252 flights)
- Thu74%(330 flights)
- Fri72%(326 flights)
- Sat88%(234 flights)
- Sun72%(336 flights)
- 12–3 AM73%(56 flights)
- 3–6 AM100%(19 flights)
- 6–9 AM93%(524 flights)
- 9 AM–12 PM83%(401 flights)
- 12–3 PM76%(325 flights)
- 3–6 PM64%(408 flights)
- 6–9 PM63%(284 flights)
- 9 PM–12 AM61%(54 flights)
Jun 76% → May 66% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 174 |
| July 2025 | 73% | 179 |
| August 2025 | 78% | 160 |
| September 2025 | 81% | 187 |
| October 2025 | 84% | 200 |
| November 2025 | 83% | 197 |
| December 2025 | 80% | 205 |
| January 2026 | 77% | 137 |
| February 2026 | 85% | 131 |
| March 2026 | 71% | 166 |
| April 2026 | 75% | 161 |
| May 2026 | 66% | 174 |
Keep nerding
Based on 2,080 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.