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Route Reliability

Huntsville → Washington

HSV–IAD · 596 miles · Huntsville International Airport to Washington Dulles International Airport

86
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
4 min
Average arrival delay
1.4%
Cancelled
1,053
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 84% of the time across 1,053 flights. No comparison to make.

What the data says

The late departure is the smart one here.

HSV–IAD flights departing between 6–9 PM arrived on time 86% of the time, versus 74% between 3–6 PM.

Saturday is the weak spot.

HSV–IAD flights arrived on time 88% of the time on Mondays. On Saturdays: 77%.

Slipping a little lately.

HSV–IAD flights arrived on time 82% of the time over the last three months in the data, compared with 88% in the three months before that.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

The breakdown

On-time by weekday
  • Mon88%(152 flights)
  • Tue84%(138 flights)
  • Wed87%(139 flights)
  • Thu88%(153 flights)
  • Fri84%(153 flights)
  • Sat77%(146 flights)
  • Sun81%(154 flights)
On-time by departure window
  • 6–9 AM84%(317 flights)
  • 12–3 PM83%(361 flights)
  • 3–6 PM74%(31 flights)
  • 6–9 PM86%(326 flights)
On-time trend by month
76%
May

Jun 71% → May 76% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%87
July 202574%86
August 202583%93
September 202594%90
October 202595%92
November 202586%88
December 202584%92
January 202688%77
February 202692%74
March 202677%86
April 202692%77
May 202676%93

Same trip, other airports

Keep nerding

Based on 1,053 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.