Historical on-time performance
Charleston to Boston
Flights on CHS–BOS arrive on time 68% of the time over the last 12 months.
based on 977 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.
- Republic AirwaysOn-time80%Medianon timep9065 minCancel0.0%Flights35
- JetBlue AirwaysOn-time69%Medianon timep9065 minCancel1.5%Flights614
- Delta Air LinesOn-time66%Medianon timep9080 minCancel1.5%Flights328
Why flights run late
Delay causes
- Airline25%
- Weather1%
- Air traffic (NAS)36%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline36%
- Weather36%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 14 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 CHS → 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 — 89% on time.
- Mornings89% on time · p90 15 min · 373 flights
- Middays71% on time · p90 70 min · 1,150 flights
- Evenings67% on time · p90 85 min · 380 flights
- Overnights67% on time · p90 70 min · 310 flights
- Afternoons67% on time · p90 75 min · 1,353 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 64% to 76% on time.
- Saturdays76% on time · p90 55 min · 588 flights
- Wednesdays76% on time · p90 55 min · 459 flights
- Tuesdays75% on time · p90 65 min · 446 flights
- Mondays71% on time · p90 70 min · 495 flights
- Thursdays68% on time · p90 70 min · 495 flights
- Fridays65% on time · p90 90 min · 501 flights
- Sundays64% on time · p90 90 min · 582 flights
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