AUS (Austin) to BOS (Boston) flights arrive on time 71% of the time. The most reliable airline on this route is Delta Air Lines at 76%. The average delay is 97 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.AUS → BOS
AUS (Austin) to BOS (Boston)
AUS → BOS on-time performance by month
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JanFebMarAprMayJunJulAugSepOctNovDec
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This route is delayed fairly often. About 71% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Delta Air Lines is significantly more reliable on this route at 76% on time vs Southwest Airlines at 55%.
Airline Comparison
Delta Air Lines leads at 76% on time; Southwest Airlines trails at 55%.
Accurate?
Good to know
Departing from AUS
79% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. AUS has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at BOS
79% on timeWhen flights into BOS are late, the average delay is 74 minutes. Build buffer if you have ground plans.
If connecting at BOS: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.