Historical on-time performance
Washington to Los Angeles
Flights on DCA–LAX arrive on time 72% of the time over the last 12 months.
based on 1,343 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.
- American AirlinesOn-time76%Medianon timep9045 minCancel1.4%Flights730
- Delta Air LinesOn-time72%Medianon timep9070 minCancel2.3%Flights306
- Alaska AirlinesOn-time66%Medianon timep9055 minCancel1.0%Flights307
Why flights run late
Delay causes
- Airline31%
- Weather6%
- Air traffic (NAS)27%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline30%
- Weather60%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 20 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly DCA → LAX
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 76% to 78% on time.
- Mornings78% on time · p90 35 min · 2,188 flights
- Evenings77% on time · p90 50 min · 1,751 flights
- Afternoons76% on time · p90 45 min · 436 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 81% on time.
- Saturdays81% on time · p90 40 min · 628 flights
- Tuesdays78% on time · p90 30 min · 624 flights
- Mondays78% on time · p90 35 min · 623 flights
- Thursdays77% on time · p90 40 min · 621 flights
- Sundays76% on time · p90 35 min · 628 flights
- Fridays75% on time · p90 45 min · 628 flights
- Wednesdays75% on time · p90 45 min · 623 flights
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