Atlanta to Los Angeles — airline reliability comparison
Spirit Airlines is the most reliable airline on the ATL to LAX route with a 78% on-time rate, compared to Southwest Airlines at 46%. Based on 2,290 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 |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 78% | 1.1% | 63m | 2,290 |
| Delta Air LinesDL | 78% | 0.7% | 57m | 14,175 |
| American AirlinesAA | 77% | 0.4% | 103m | 1,417 |
| Frontier AirlinesF9 | 63% | 2.4% | 68m | 908 |
| Southwest AirlinesWNWorst | 46% | 4.4% | 45m | 46 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.