Delta Air Lines BOS to RDU on-time performance
Delta Air Lines nonstop flights from Boston to Raleigh/Durham · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
2.6%
38 flights
Avg arrival delay
20 min
85 min when late
Rank on route
#2 of 4
route average 76% on time
Key facts
- Delta Air Lines flights on BOS to RDU arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 2.6% were cancelled, and 11% arrived an hour or more late.
- That ranks #2 of 4 airlines on this route, which averaged 76% on time overall.
- The largest source of delay minutes was late-arriving aircraft (50%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft50%
- Airline (crew, maintenance, cleaning, fueling)38%
- Air traffic control & airport congestion9%
- Extreme weather3%
- Security0%
Other airlines on BOS to RDU
- JetBlue73% on time · 19 min avg delay
- Frontier Airlines72% on time · 15 min avg delay
- Republic Airways82% on time · 14 min avg delay
Full BOS to RDU comparison →
Delta Air Lines on-time record across all routes →
1,435 Delta Air Lines flights tracked on this route; 38 cancelled, 3 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.