AUS (Austin) to BOS (Boston) flights arrive on time 73% of the time. The most reliable airline on this route is Delta Air Lines at 78%. The average delay is 96 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated October 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 73% 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 78% on time vs Southwest Airlines at 56%.
Airline Comparison
Delta Air Lines leads at 78% on time; Southwest Airlines trails at 56%.
Accurate?
Good to know
Departing from AUS
78% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. AUS has long runway queues.
TSA is currently ~23 min. Best time: 4 AM (about 5 min).
Arriving at BOS
77% on timeWhen flights into BOS are late, the average delay is 75 minutes. Build buffer if you have ground plans.
If connecting at BOS: TSA is ~33 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Delta Air Lines owes you — refund rights, action plan, complaint email. Free.
Flying out of AUS? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Know someone flying soon?
Send them the link — delay data, TSA waits, weather, all free.
Data last updated October 2026. Source: Bureau of Transportation Statistics.