ATL (Atlanta) to BOS (Boston) flights arrive on time 77% of the time. The most reliable airline on this route is Delta Air Lines at 78%. The average delay is 68 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated April 2026.ATL → BOS
ATL (Atlanta) to BOS (Boston)
ATL → BOS on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is on time most of the time. About 77% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Delta Air Lines edges out Frontier Airlines on this route — 78% vs 67% on time.
Airline Comparison
Delta Air Lines leads at 78% on time; Frontier Airlines trails at 67%.
Accurate?
Good to know
Departing from ATL
83% on timeExpect ~16 min sitting on the taxiway after your gate pushes back. ATL has long runway queues.
TSA is currently ~24 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 ~20 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated April 2026. Source: Bureau of Transportation Statistics.