Delta Air Lines BOS to CHS on-time performance
Delta Air Lines nonstop flights from Boston to Charleston · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
3.2%
12 flights
Avg arrival delay
17 min
74 min when late
Rank on route
#2 of 3
route average 78% on time
Key facts
- Delta Air Lines flights on BOS to CHS arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 3.2% were cancelled, and 8% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (45%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)45%
- Late-arriving aircraft35%
- Air traffic control & airport congestion18%
- Extreme weather2%
- Security0%
Other airlines on BOS to CHS
- JetBlue76% on time · 16 min avg delay
- Republic Airways84% on time · 10 min avg delay
Full BOS to CHS comparison →
Delta Air Lines on-time record across all routes →
379 Delta Air Lines flights tracked on this route; 12 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.