Austin to Boston — airline reliability comparison
Delta Air Lines is the most reliable airline on the AUS to BOS route with a 78% on-time rate, compared to Southwest Airlines at 56%. Based on 3,037 flights tracked.
This route involves weather-prone 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 | 78% | 1.8% | 107m | 3,037 |
| American AirlinesAA | 75% | 0.8% | 139m | 1,009 |
| JetBlue AirwaysB6 | 64% | 1.8% | 83m | 1,369 |
| Southwest AirlinesWNWorst | 56% | 1.7% | 58m | 330 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.