Historical on-time performance
Charlotte to Boston
728 miData through May 2026Source: US DOT · BTS
Flights on CLT–BOS arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights
based on 3,934 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time79%Medianon timep9050 minCancel3.1%Flights1,204
- American AirlinesOn-time70%Medianon timep9060 minCancel2.3%Flights2,730
Why flights run late
Delay causes
- Airline25%
- Weather8%
- Air traffic (NAS)28%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline11%
- Weather65%
- Air traffic (NAS)24%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 100 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 CLT → 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 — 85% on time.
- Mornings85% on time · p90 20 min · 3,423 flights
- Middays80% on time · p90 30 min · 3,297 flights
- Afternoons66% on time · p90 75 min · 2,210 flights
- Evenings63% on time · p90 80 min · 3,257 flights
- Overnights61% on time · p90 80 min · 1,791 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 78% on time.
- Wednesdays78% on time · p90 40 min · 1,980 flights
- Tuesdays76% on time · p90 45 min · 1,937 flights
- Saturdays76% on time · p90 55 min · 1,688 flights
- Mondays72% on time · p90 60 min · 2,119 flights
- Thursdays71% on time · p90 60 min · 2,103 flights
- Fridays69% on time · p90 65 min · 2,121 flights
- Sundays67% on time · p90 65 min · 2,035 flights
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