JFK (New York) to BOS (Boston) flights arrive on time 74% of the time. The most reliable airline on this route is Southwest Airlines at 77%. The average delay is 42 minutes. Delays on this route are most often caused by weather.
Source: Bureau of Transportation Statistics. Updated March 2026.JFK → BOS
JFK (New York) to BOS (Boston)
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This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by weather.
Airlines are roughly equal on this route — Southwest Airlines leads slightly at 77% vs United Airlines at 74%.
Airline Comparison
Southwest Airlines leads at 77% on time; United Airlines trails at 74%.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.