Historical on-time performance
Houston to Washington
1,218 miData through Dec 2025Source: US DOT · BTS
Flights on HOU–DCA arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 1,056 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time68%Medianon timep9055 minCancel1.2%Flights1,056
Why flights run late
Delay causes
- Airline24%
- Weather5%
- Air traffic (NAS)39%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly HOU → DCA
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 — 93% on time.
- Mornings93% on time · p90 10 min · 1,005 flights
- Middays75% on time · p90 40 min · 1,003 flights
- Afternoons72% on time · p90 55 min · 69 flights · limited
- Evenings64% on time · p90 60 min · 1,030 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 81% on time.
- Tuesdays81% on time · p90 30 min · 471 flights
- Mondays79% on time · p90 40 min · 471 flights
- Saturdays78% on time · p90 40 min · 325 flights
- Thursdays77% on time · p90 45 min · 465 flights
- Wednesdays77% on time · p90 40 min · 471 flights
- Sundays75% on time · p90 35 min · 444 flights
- Fridays73% on time · p90 45 min · 468 flights
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