GRR (Grand Rapids) to BOS (Boston) flights arrive on time 91% of the time. The most reliable airline on this route is Allegiant Air at 91%. The average delay is 42 minutes. Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Source: Bureau of Transportation Statistics. Updated August 2026.GRR → BOS
GRR (Grand Rapids) to BOS (Boston)
GRR → BOS on-time performance by month
24
25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is usually on time. About 91% of flights arrive on schedule.
Delays on this route are most often caused by the airline (crew, maintenance, or boarding).
Accurate?
Accurate?
Good to know
Departing from GRR
78% on timeExpect ~19 min sitting on the taxiway after your gate pushes back. GRR has long runway queues.
TSA is currently ~13 min. Best time: 4 AM (about 5 min).
Arriving at BOS
77% 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 ~15 min right now. Allow at least 60 minutes for a domestic connection.
Flight cancelled or delayed?
Check what Allegiant Air owes you — refund rights, action plan, complaint email. Free.
Flying out of GRR? 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 August 2026. Source: Bureau of Transportation Statistics.