Southwest Airlines DEN to ATL on-time performance
Southwest Airlines nonstop flights from Denver to Atlanta · Aug 2025 – Jul 2026
On-time arrivals
64%
arrived < 15 min late
Cancelled
0.7%
8 flights
Avg arrival delay
20 min
52 min when late
Rank on route
#4 of 4
route average 79% on time
Key facts
- Southwest Airlines flights on DEN to ATL arrived on time 64% of the time in Aug 2025 – Jul 2026.
- 0.7% were cancelled, and 10% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was late-arriving aircraft (48%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion12%
- Extreme weather2%
- Security1%
Other airlines on DEN to ATL
- Delta Air Lines86% on time · 9 min avg delay
- United Airlines78% on time · 15 min avg delay
- Frontier Airlines78% on time · 15 min avg delay
Full DEN to ATL comparison →
Southwest Airlines on-time record across all routes →
1,076 Southwest Airlines flights tracked on this route; 8 cancelled, 5 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.