Historical on-time performance
Cleveland to Boston
563 miData through May 2026Source: US DOT · BTS
Flights on CLE–BOS arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled2.1%of scheduled flights
based on 1,575 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time81%Medianon timep9040 minCancel2.1%Flights864
- JetBlue AirwaysOn-time70%Medianon timep9070 minCancel2.1%Flights711
Why flights run late
Delay causes
- Airline29%
- Weather2%
- Air traffic (NAS)42%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline27%
- Weather33%
- Air traffic (NAS)39%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 33 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 CLE → 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 — 86% on time.
- Mornings86% on time · p90 20 min · 2,071 flights
- Middays83% on time · p90 30 min · 1,413 flights
- Afternoons71% on time · p90 65 min · 505 flights
- Evenings67% on time · p90 85 min · 1,004 flights
- Overnights60% on time · p90 105 min · 136 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 85% on time.
- Wednesdays85% on time · p90 25 min · 733 flights
- Saturdays84% on time · p90 30 min · 540 flights
- Tuesdays80% on time · p90 45 min · 743 flights
- Fridays78% on time · p90 55 min · 794 flights
- Thursdays78% on time · p90 55 min · 787 flights
- Mondays78% on time · p90 50 min · 793 flights
- Sundays75% on time · p90 55 min · 739 flights
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