United Airlines BWI to SFO on-time performance
United Airlines nonstop flights from Baltimore to San Francisco · Aug 2025 – Jul 2026
On-time arrivals
78%
arrived < 15 min late
Cancelled
0.9%
6 flights
Avg arrival delay
13 min
51 min when late
Rank on route
#1 of 2
route average 70% on time
Key facts
- United Airlines flights on BWI to SFO arrived on time 78% of the time in Aug 2025 – Jul 2026.
- 0.9% were cancelled, and 6% arrived an hour or more late.
- That ranks #1 of 2 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (48%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion48%
- Airline (crew, maintenance, cleaning, fueling)24%
- Late-arriving aircraft23%
- Extreme weather5%
- Security0%
Other airlines on BWI to SFO
- Southwest Airlines55% on time · 26 min avg delay
Full BWI to SFO comparison →
United Airlines on-time record across all routes →
689 United Airlines flights tracked on this route; 6 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.