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Route Reliability

Washington → Houston

DCA–HOU · 1,218 miles · Ronald Reagan Washington National Airport to William P. Hobby Airport

78
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
5 min
Average arrival delay
1.9%
Cancelled
1,056
Flights in the data

Data through May 2026.

Southwest Airlines is the only airline in this data on this route, arriving on time 79% of the time across 1,056 flights. No comparison to make.

What the data says

Morning-you made the right choice.

DCA–HOU flights departing between 6–9 AM arrived on time 94% of the time, versus 61% between 3–6 PM.

Sunday scaries are real for this one.

DCA–HOU flights arrived on time 83% of the time on Tuesdays. On Sundays: 68%.

Recent months have been rougher.

DCA–HOU flights arrived on time 72% of the time over the last three months in the data, compared with 88% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon82%(152 flights)
  • Tue83%(155 flights)
  • Wed81%(155 flights)
  • Thu83%(150 flights)
  • Fri74%(155 flights)
  • Sat81%(115 flights)
  • Sun68%(152 flights)
On-time by departure window
  • 6–9 AM94%(358 flights)
  • 12–3 PM78%(330 flights)
  • 3–6 PM61%(54 flights)
  • 6–9 PM65%(292 flights)
On-time trend by month
61%
May

Jun 69% → May 61% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%87
July 202568%87
August 202578%89
September 202584%86
October 202589%85
November 202582%82
December 202584%91
January 202688%83
February 202692%78
March 202674%91
April 202681%87
May 202661%88

Same trip, other airports

Keep nerding

Based on 1,056 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.