Historical on-time performance
New York to Boston
185 miData through May 2026Source: US DOT · BTS
Flights on LGA–BOS arrive on time 69% of the time over the last 12 months.
On-time rate69%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled5.3%of scheduled flights
based on 7,105 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesbestOn-time74%Medianon timep9075 minCancel4.0%Flights519
- Republic AirwaysOn-time69%Medianon timep9065 minCancel5.4%Flights6,586
Why flights run late
Delay causes
- Airline26%
- Weather3%
- Air traffic (NAS)37%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline25%
- Weather29%
- Air traffic (NAS)46%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 376 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LGA → BOS
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 10 min · 6,211 flights
- Middays81% on time · p90 35 min · 5,333 flights
- Afternoons68% on time · p90 75 min · 4,136 flights
- Evenings66% on time · p90 85 min · 4,131 flights
- Overnights66% on time · p90 75 min · 2,420 flights
Best day of week
Saturdays are the most reliable day to fly this route — 86% on time.
- Saturdays86% on time · p90 20 min · 988 flights
- Wednesdays80% on time · p90 40 min · 3,682 flights
- Tuesdays79% on time · p90 45 min · 3,648 flights
- Fridays75% on time · p90 65 min · 3,652 flights
- Thursdays75% on time · p90 55 min · 3,655 flights
- Mondays74% on time · p90 50 min · 3,665 flights
- Sundays71% on time · p90 65 min · 2,941 flights
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