Best Time to Fly BWI to SJC: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Norman Y. Mineta San Jose International
Data through July 2026 · Last updated October 18, 2026
242 flights were scheduled from Baltimore (BWI) to San Jose (SJC) in the last 12 months, and 63.1% of those that flew arrived on time, 14.6 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Friday was the most reliable day (72% on time) and June the worst month (48%).
The cancellation rate was 0.4% (US average 1.8%).
BWI to SJC on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlines | 63.1% | 46 min | 0.4% | 242 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to SJC
On-time arrival % by scheduled departure hour (local time), 332 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 16 | |
| 7am–8am | Limited data | 11 | |
| 8am–9am | Limited data | 6 | |
| 9am–10am | 64.1% | 1.5% | 65 |
| 12pm–1pm | 54.3% | 0.0% | 35 |
| 1pm–2pm | 83.8% | 0.0% | 37 |
| 2pm–3pm | 67.2% | 0.0% | 61 |
| 3pm–4pm | Limited data | 29 | |
| 4pm–5pm | Limited data | 6 | |
| 5pm–6pm | Limited data | 25 | |
| 6pm–7pm | Limited data | 21 | |
| 7pm–8pm | Limited data | 16 | |
| 8pm–9pm | Limited data | 4 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BWI to SJC
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Summer peak (Jun 15 - Aug 15) | 59.1% | -8.3 pts | 1.7% | 117 |
| All other days | 67.4% | — | 0.0% | 215 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).