El Paso to Las Vegas — airline reliability comparison
Southwest Airlines is the most reliable airline on the ELP to LAS route with a 82% on-time rate, compared to Allegiant Air at 73%. Based on 3,705 flights tracked.
This route involves high-congestion airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Southwest AirlinesWNBest | 82% | 0.4% | 59m | 3,705 |
| Frontier AirlinesF9 | 77% | 2.0% | 90m | 893 |
| Allegiant AirG4Worst | 73% | 0.0% | 63m | 30 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.