Best Time to Fly BWI to LAX: On-Time Stats by Hour & Airline
Baltimore/Washington International Thurgood Marshall → Los Angeles International
Data through July 2026 · Last updated October 18, 2026
1,701 flights were scheduled from Baltimore (BWI) to Los Angeles (LAX) in the last 12 months, and 73.9% of those that flew arrived on time, 3.7 points below the US average of 77.6%.
Among 3 airlines, Spirit Airlines led with 93.3% on time and Southwest Airlines was last with 66.9%.
Over 24 months, Tuesday was the most reliable day (80% on time) and June the worst month (61%).
The cancellation rate was 1.3% (US average 1.8%).
BWI to LAX 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 |
|---|---|---|---|---|
| Spirit Airlines | 93.3% | 32 min | 1.3% | 76 |
| United Airlines | 84.1% | 77 min | 1.0% | 580 |
| Southwest Airlines | 66.9% | 49 min | 1.4% | 1,045 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BWI to LAX
On-time arrival % by scheduled departure hour (local time), 3,406 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.7% | 2.1% | 95 |
| 6am–7am | 89.3% | 0.8% | 705 |
| 7am–8am | 85.5% | 0.9% | 321 |
| 8am–9am | 88.2% | 1.8% | 335 |
| 9am–10am | 92.0% | 0.0% | 88 |
| 10am–11am | Limited data | 10 | |
| 11am–12pm | Limited data | 9 | |
| 12pm–1pm | Limited data | 13 | |
| 1pm–2pm | 66.7% | 1.2% | 85 |
| 2pm–3pm | 65.9% | 0.0% | 88 |
| 3pm–4pm | 57.6% | 0.8% | 245 |
| 4pm–5pm | 59.6% | 1.9% | 53 |
| 5pm–6pm | 87.9% | 0.0% | 200 |
| 6pm–7pm | 70.0% | 1.2% | 400 |
| 7pm–8pm | 63.5% | 1.6% | 304 |
| 8pm–9pm | 66.2% | 2.8% | 291 |
| 9pm–10pm | 62.1% | 0.8% | 125 |
| 10pm–11pm | 38.2% | 2.9% | 35 |
| 11pm–12am | 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 LAX
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) | 76.9% | -2.9 pts | 0.0% | 65 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.7% | -6.2 pts | 0.8% | 134 |
| Summer peak (Jun 15 - Aug 15) | 66.6% | -13.2 pts | 2.2% | 675 |
| All other days | 79.9% | — | 1.0% | 2,532 |
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).