Atlanta to Boston — airline reliability comparison
Delta Air Lines is the most reliable airline on the ATL to BOS route with a 80% on-time rate, compared to Frontier Airlines at 65%. Based on 13,054 flights tracked.
This route involves weather-prone airports and 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 | 80% | 1.0% | 58m | 13,054 |
| Spirit AirlinesNK | 73% | 1.1% | 71m | 1,092 |
| JetBlue AirwaysB6 | 73% | 2.1% | 97m | 3,154 |
| Frontier AirlinesF9Worst | 65% | 2.9% | 68m | 683 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.