Delta Air Lines ATL to BOS on-time performance
Delta Air Lines nonstop flights from Atlanta to Boston · Aug 2025 – Jul 2026
On-time arrivals
76%
arrived < 15 min late
Cancelled
1.8%
65 flights
Avg arrival delay
16 min
61 min when late
Rank on route
#1 of 4
route average 74% on time
Key facts
- Delta Air Lines flights on ATL to BOS arrived on time 76% of the time in Aug 2025 – Jul 2026.
- 1.8% were cancelled, and 8% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (42%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion42%
- Airline (crew, maintenance, cleaning, fueling)38%
- Late-arriving aircraft16%
- Extreme weather5%
- Security0%
Other airlines on ATL to BOS
- JetBlue70% on time · 27 min avg delay
- Frontier Airlines67% on time · 19 min avg delay
- Spirit Airlines62% on time · 22 min avg delay
Full ATL to BOS comparison →
Delta Air Lines on-time record across all routes →
3,693 Delta Air Lines flights tracked on this route; 65 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.