BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
HOU→DCA

Houston, TX (HOU) to Washington, DC (DCA) flight delay odds

69.5% of 1,056 official scheduled HOU-to-DCA flights arrived on time; 18.5% arrived at least 30 minutes late and 1.2% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALVariable
69.5%arrived on time
18.5%30+ min late
1.2%cancelled
1,056scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.2%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+11.9 mincompleted flights

Which departure time was most reliable for HOU to DCA?

Among qualifying HOU-to-DCA departure window results, Early morning had the highest on-time rate: 90.2% of 338 flights. Evening was lowest at 55.7% across 350 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning33890.2%3.0%0.9%
Late morning7573.3%9.3%2.7%
Afternoon29361.1%25.3%1.4%
Evening35055.7%29.7%1.1%

Which weekday was most reliable for HOU to DCA?

Among qualifying HOU-to-DCA weekday results, Saturday had the highest on-time rate: 77.1% of 118 flights. Sunday was lowest at 64.7% across 156 flights.

DayFlightsOn time30+ minCancelled
Monday15667.9%17.3%0.6%
Tuesday15975.5%15.7%0.0%
Wednesday15667.3%25.6%0.0%
Thursday15569.7%21.3%0.6%
Friday15666.0%18.6%1.9%
Saturday11877.1%13.6%0.8%
Sunday15664.7%16.0%4.5%

Which airline was most reliable for HOU to DCA?

Only Southwest Airlines met the HOU-to-DCA airline threshold: 69.5% of 1,056 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines1,05669.5%18.5%1.2%

Which month was most reliable for HOU to DCA?

Among qualifying HOU-to-DCA month results, December 2025 had the highest on-time rate: 78.0% of 91 flights. October 2025 was lowest at 54.1% across 85 flights.

MonthFlightsOn time30+ minCancelled
July 20259371.0%14.0%2.2%
August 20258973.0%19.1%0.0%
September 20258676.7%14.0%0.0%
October 20258554.1%30.6%0.0%
November 20258576.5%15.3%2.4%
December 20259178.0%9.9%0.0%
January 20268976.4%14.6%3.4%
February 20268072.5%15.0%2.5%
March 20269354.8%24.7%3.2%
April 20268771.3%20.7%0.0%
May 20268868.2%18.2%1.1%
June 20269062.2%25.6%0.0%

What drove HOU to DCA delay minutes?

Late aircraft was the largest recorded HOU-to-DCA delay category, accounting for 37.3% of 16,349 BTS-attributed delay minutes during July 2025–June 2026.

Airline25.8%
Late aircraft37.3%
National airspace33.5%
Weather3.0%
Security0.4%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.