Historical on-time performance
Baltimore to Los Angeles
2,329 miData through Dec 2025Source: US DOT · BTS
Flights on BWI–LAX arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.0%of scheduled flights
based on 1,631 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- United AirlinesOn-time87%Medianon timep9015 minCancel0.9%Flights581
- Southwest AirlinesOn-time70%Medianon timep9040 minCancel1.0%Flights899
- Spirit AirlinesOn-time81%Medianon timep9045 minCancel1.3%Flights151
Why flights run late
Delay causes
- Airline30%
- Weather6%
- Air traffic (NAS)24%
- Late aircraft39%
- Security1%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BWI → LAX
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 87% on time.
- Mornings87% on time · p90 15 min · 2,293 flights
- Middays76% on time · p90 35 min · 323 flights
- Evenings68% on time · p90 55 min · 1,480 flights
- Afternoons60% on time · p90 55 min · 422 flights
- Overnights57% on time · p90 70 min · 555 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 78% on time.
- Tuesdays78% on time · p90 30 min · 695 flights
- Thursdays77% on time · p90 35 min · 751 flights
- Wednesdays77% on time · p90 40 min · 700 flights
- Mondays76% on time · p90 35 min · 760 flights
- Saturdays75% on time · p90 45 min · 691 flights
- Sundays72% on time · p90 45 min · 718 flights
- Fridays72% on time · p90 45 min · 758 flights
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