DAL (Dallas) to BOS (Boston) flights arrive on time 65% of the time. The most reliable airline on this route is Southwest Airlines at 65%. The average delay is 58 minutes. Delays on this route are most often caused by air traffic and busy airspace.
Source: Bureau of Transportation Statistics. Updated October 2026.DAL → BOS
DAL (Dallas) to BOS (Boston)
DAL → BOS on-time performance by month
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
This route is delayed fairly often. About 65% of flights arrive on schedule.
Delays on this route are most often caused by air traffic and busy airspace.
Accurate?
Accurate?
Good to know
Departing from DAL
78% on timeTSA is currently ~30 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 ~29 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Southwest Airlines owes you — refund rights, action plan, complaint email. Free.
Flying out of DAL? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.