Best Time to Fly SMF to BWI: On-Time Stats by Hour & Airline
Sacramento International → Baltimore/Washington International Thurgood Marshall
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 84.4% of Sacramento (SMF) to Baltimore (BWI) flights arrived on time (364 scheduled flights). That is 6.8 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (94% on time) and Sunday the weakest day of the week (76%).
0.8% of flights were cancelled, versus 1.8% nationally.
SMF to BWI 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 | 84.4% | 32 min | 0.8% | 364 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SMF to BWI
On-time arrival % by scheduled departure hour (local time), 527 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 27 | |
| 6am–7am | Limited data | 25 | |
| 7am–8am | Limited data | 17 | |
| 8am–9am | Limited data | 1 | |
| 9am–10am | Limited data | 5 | |
| 10am–11am | Limited data | 15 | |
| 11am–12pm | 80.5% | 2.2% | 89 |
| 12pm–1pm | Limited data | 9 | |
| 1pm–2pm | Limited data | 7 | |
| 9pm–10pm | 84.8% | 0.0% | 324 |
| 10pm–11pm | Limited data | 8 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SMF to BWI
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 6 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 15 | ||
| Summer peak (Jun 15 - Aug 15) | 75.9% | -9.3 pts | 0.8% | 118 |
| All other days | 85.2% | — | 0.8% | 388 |
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).