Historical on-time performance
Las Vegas to Washington
Flights on LAS–DCA arrive on time 73% of the time over the last 12 months.
based on 674 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 timep9060 minCancel1.5%Flights337
- Southwest AirlinesOn-time71%Medianon timep9040 minCancel0.3%Flights337
Why flights run late
Delay causes
- Airline43%
- Weather3%
- Air traffic (NAS)27%
- Late aircraft27%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather83%
- Air traffic (NAS)17%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 6 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 LAS → DCA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Middays are the most reliable time of day to fly this route — 77% on time.
- Middays77% on time · p90 40 min · 1,117 flights
- Mornings70% on time · p90 40 min · 443 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 70% to 82% on time.
- Saturdays82% on time · p90 30 min · 222 flights
- Sundays75% on time · p90 35 min · 225 flights
- Wednesdays75% on time · p90 45 min · 220 flights
- Tuesdays75% on time · p90 45 min · 220 flights
- Thursdays75% on time · p90 40 min · 225 flights
- Fridays70% on time · p90 40 min · 225 flights
- Mondays70% on time · p90 40 min · 223 flights
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