Delta Air Lines DEN to ATL on-time performance
Delta Air Lines nonstop flights from Denver to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
86%
arrived < 15 min late
Cancelled
1.2%
33 flights
Avg arrival delay
9 min
62 min when late
Rank on route
#1 of 4
route average 79% on time
Key facts
- Delta Air Lines flights on DEN to ATL arrived on time 86% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 4% arrived an hour or more late.
- That ranks #1 of 4 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)38%
- Late-arriving aircraft37%
- Air traffic control & airport congestion18%
- Extreme weather6%
- Security0%
Other airlines on DEN to ATL
- Southwest Airlines64% on time · 20 min avg delay
- United Airlines78% on time · 15 min avg delay
- Frontier Airlines78% on time · 15 min avg delay
Full DEN to ATL comparison →
Delta Air Lines on-time record across all routes →
2,810 Delta Air Lines flights tracked on this route; 33 cancelled, 11 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.