Indianapolis to Atlanta — airline reliability comparison
Delta Air Lines is the most reliable airline on the IND to ATL route with a 88% on-time rate, compared to Frontier Airlines at 67%. Based on 9,095 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 |
|---|---|---|---|---|
| Delta Air LinesDLBest | 88% | 1.0% | 85m | 9,095 |
| Southwest AirlinesWN | 80% | 0.4% | 54m | 2,391 |
| Spirit AirlinesNK | 79% | 1.7% | 58m | 55 |
| Frontier AirlinesF9Worst | 67% | 1.8% | 68m | 180 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.