Los Angeles to Atlanta — airline reliability comparison
Southwest Airlines is the most reliable airline on the LAX to ATL route with a 86% on-time rate, compared to Frontier Airlines at 49%. Based on 45 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 | 86% | 0.0% | 57m | 45 |
| Delta Air LinesDL | 81% | 0.7% | 69m | 14,160 |
| Spirit AirlinesNK | 78% | 1.1% | 56m | 2,288 |
| American AirlinesAA | 75% | 0.4% | 107m | 1,413 |
| Frontier AirlinesF9Worst | 49% | 2.4% | 71m | 907 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.