Southwest Airlines MKE to DCA on-time performance
Southwest Airlines nonstop flights from Milwaukee to Washington · Aug 2025 – Jul 2026
On-time arrivals
74%
arrived < 15 min late
Cancelled
1.3%
9 flights
Avg arrival delay
16 min
57 min when late
Rank on route
#1 of 3
route average 74% on time
Key facts
- Southwest Airlines flights on MKE to DCA arrived on time 74% of the time in Aug 2025 – Jul 2026.
- 1.3% were cancelled, and 8% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 74% on time overall.
- The largest source of delay minutes was late-arriving aircraft (42%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft42%
- Air traffic control & airport congestion41%
- Airline (crew, maintenance, cleaning, fueling)17%
- Extreme weather0%
- Security0%
Other airlines on MKE to DCA
- PSA Airlines74% on time · 37 min avg delay
- Republic Airways57% on time · 13 min avg delay
Full MKE to DCA comparison →
Southwest Airlines on-time record across all routes →
680 Southwest Airlines flights tracked on this route; 9 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.