Southwest Airlines SFO to BWI on-time performance
Southwest Airlines nonstop flights from San Francisco to Baltimore · Aug 2025 – Jul 2026
On-time arrivals
65%
arrived < 15 min late
Cancelled
0.8%
3 flights
Avg arrival delay
18 min
48 min when late
Rank on route
#2 of 2
route average 81% on time
Key facts
- Southwest Airlines flights on SFO to BWI arrived on time 65% of the time in Aug 2025 – Jul 2026.
- 0.8% were cancelled, and 9% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 81% on time overall.
- The largest source of delay minutes was late-arriving aircraft (86%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft86%
- Airline (crew, maintenance, cleaning, fueling)9%
- Air traffic control & airport congestion5%
- Extreme weather0%
- Security0%
Other airlines on SFO to BWI
- United Airlines90% on time · 6 min avg delay
Full SFO to BWI comparison →
Southwest Airlines on-time record across all routes →
365 Southwest Airlines flights tracked on this route; 3 cancelled, 0 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.