Historical on-time performance
Boston to Wilmington
672 miData through Dec 2025Source: US DOT · BTS
Flights on BOS–ILM arrive on time 88% of the time over the last 12 months.
On-time rate88%arrived within 15 min
p90 delay15 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 337 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- JetBlue AirwaysOn-time90%Medianon timep9010 minCancel0.7%Flights153
- Envoy AirOn-time86%Medianon timep9015 minCancel0.5%Flights184
Why flights run late
Delay causes
- Airline42%
- Weather2%
- Air traffic (NAS)21%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BOS → ILM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 84% to 86% on time.
- Mornings86% on time · p90 20 min · 283 flights
- Middays84% on time · p90 30 min · 553 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 88% on time.
- Wednesdays88% on time · p90 20 min · 103 flights · limited
- Tuesdays88% on time · p90 20 min · 99 flights · limited
- Thursdays84% on time · p90 35 min · 103 flights · limited
- Mondays84% on time · p90 25 min · 105 flights · limited
- Sundays83% on time · p90 25 min · 161 flights · limited
- Saturdays83% on time · p90 25 min · 169 flights · limited
- Fridays81% on time · p90 35 min · 103 flights · limited
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