Historical on-time performance
Los Angeles to Washington
Flights on LAX–DCA arrive on time 78% 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-time80%Medianon timep9030 minCancel1.2%Flights730
- Delta Air LinesOn-time79%Medianon timep9030 minCancel2.3%Flights306
- Alaska AirlinesOn-time74%Medianon timep9065 minCancel1.0%Flights307
Why flights run late
Delay causes
- Airline39%
- Weather0%
- Air traffic (NAS)31%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline32%
- Weather58%
- Air traffic (NAS)11%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 19 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 LAX → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 85% on time.
- Mornings85% on time · p90 20 min · 2,187 flights
- Middays73% on time · p90 55 min · 2,187 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 84% on time.
- Saturdays84% on time · p90 25 min · 628 flights
- Tuesdays82% on time · p90 25 min · 623 flights
- Thursdays79% on time · p90 30 min · 621 flights
- Wednesdays78% on time · p90 40 min · 623 flights
- Sundays77% on time · p90 35 min · 627 flights
- Mondays77% on time · p90 40 min · 624 flights
- Fridays76% on time · p90 45 min · 628 flights
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