Route
BWI → SFO
Baltimore/Washington International Thurgood Marshall Airport San Francisco International Airport
Alerts at BWI and SFO
How punctual is this route?
- On-time arrivals
- 68.5%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 56 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1,033
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 41%
- Airline (crew, maintenance, cleaning) 29%
- Late-arriving aircraft 26%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 75.3% | 85 |
| October 2025 | 84.9% | 106 |
| November 2025 | 81.2% | 80 |
| December 2025 | 64.3% | 86 |
| January 2026 | 80.7% | 87 |
| February 2026 | 72.0% | 78 |
| March 2026 | 81.8% | 90 |
| April 2026 | 64.0% | 86 |
| May 2026 | 58.1% | 87 |
| June 2026 | 41.0% | 83 |
| July 2026 | 52.4% | 83 |
| August 2026 | 62.2% | 82 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 668 | 77.9% | 0.9% | 55 min |
| Southwest Airlines | 365 | 51.4% | 0.8% | 58 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
-
UA504
46% late · 187 flights
-
UA2192
7% late · 156 flights
-
UA1035
24% late · 88 flights
-
WN138
20% late · 58 flights
-
WN3693
61% late · 57 flights
-
UA1596
12% late · 53 flights
-
WN1101
78% late · 51 flights
-
UA216
11% late · 37 flights
-
WN1293
35% late · 33 flights
-
UA363
3% late · 31 flights
-
WN3633
45% late · 31 flights
-
WN787
22% late · 27 flights
-
UA217
4% late · 25 flights
-
UA794
4% late · 24 flights
-
WN2826
33% late · 24 flights
-
UA2855
29% late · 21 flights
-
WN1913
33% late · 21 flights
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