Southwest Airlines BWI to MIA on-time performance
Southwest Airlines nonstop flights from Baltimore to Miami · Aug 2025 – Jul 2026
On-time arrivals
73%
arrived < 15 min late
Cancelled
1.9%
23 flights
Avg arrival delay
16 min
54 min when late
Rank on route
#3 of 5
route average 75% on time
Key facts
- Southwest Airlines flights on BWI to MIA arrived on time 73% of the time in Aug 2025 – Jul 2026.
- 1.9% were cancelled, and 7% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (36%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft36%
- Air traffic control & airport congestion30%
- Airline (crew, maintenance, cleaning, fueling)29%
- Extreme weather4%
- Security1%
Other airlines on BWI to MIA
- American Airlines81% on time · 22 min avg delay
- Frontier Airlines69% on time · 30 min avg delay
- Envoy Air82% on time · 12 min avg delay
- Spirit Airlines56% on time · 30 min avg delay
Full BWI to MIA comparison →
Southwest Airlines on-time record across all routes →
1,183 Southwest Airlines flights tracked on this route; 23 cancelled, 2 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.