Historical on-time performance
Washington to Houston
1,218 miData through Dec 2025Source: US DOT · BTS
Flights on DCA–HOU arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled2.4%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-time76%Medianon timep9045 minCancel2.4%Flights1,056
Why flights run late
Delay causes
- Airline28%
- Weather2%
- Air traffic (NAS)20%
- Late aircraft51%
- Security0%
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 DCA → HOU
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 66% to 89% on time.
- Mornings89% on time · p90 10 min · 1,095 flights
- Afternoons85% on time · p90 30 min · 158 flights · limited
- Middays73% on time · p90 45 min · 851 flights
- Evenings66% on time · p90 70 min · 1,006 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 81% on time.
- Saturdays81% on time · p90 30 min · 325 flights
- Thursdays79% on time · p90 35 min · 465 flights
- Tuesdays79% on time · p90 35 min · 471 flights
- Mondays79% on time · p90 35 min · 471 flights
- Wednesdays78% on time · p90 30 min · 471 flights
- Sundays72% on time · p90 55 min · 444 flights
- Fridays71% on time · p90 50 min · 468 flights
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