Southwest Airlines ATL to DCA on-time performance
Southwest Airlines nonstop flights from Atlanta to Washington · Aug 2025 – Jul 2026
On-time arrivals
72%
arrived < 15 min late
Cancelled
1.5%
17 flights
Avg arrival delay
20 min
65 min when late
Rank on route
#3 of 6
route average 70% on time
Key facts
- Southwest Airlines flights on ATL to DCA arrived on time 72% of the time in Aug 2025 – Jul 2026.
- 1.5% were cancelled, and 10% arrived an hour or more late.
- That ranks #3 of 6 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was late-arriving aircraft (41%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft41%
- Air traffic control & airport congestion27%
- Airline (crew, maintenance, cleaning, fueling)26%
- Extreme weather5%
- Security1%
Other airlines on ATL to DCA
- Delta Air Lines68% on time · 20 min avg delay
- PSA Airlines74% on time · 35 min avg delay
- Republic Airways71% on time · 17 min avg delay
- Envoy Air69% on time · 21 min avg delay
- American Airlines87% on time · 11 min avg delay
Full ATL to DCA comparison →
Southwest Airlines on-time record across all routes →
1,107 Southwest Airlines flights tracked on this route; 17 cancelled, 10 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.