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Route Reliability

Washington → CHO

IAD–CHO · 78 miles · Washington Dulles International Airport to CHO Airport

73
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
23 min
Average arrival delay
2.1%
Cancelled
1,141
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 79% of the time across 1,141 flights. No comparison to make.

What the data says

Morning-you made the right choice.

IAD–CHO flights departing between 9 AM–12 PM arrived on time 88% of the time, versus 66% between 6–9 PM.

Tuesday has been the better bet.

A small edge: 82% on time on Tuesdays against 76% on Sundays.

Ticking up lately.

IAD–CHO flights arrived on time 80% of the time over the last three months in the data, compared with 77% 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
  • Mon79%(176 flights)
  • Tue82%(159 flights)
  • Wed80%(153 flights)
  • Thu79%(175 flights)
  • Fri78%(156 flights)
  • Sat82%(131 flights)
  • Sun76%(167 flights)
On-time by departure window
  • 6–9 AM83%(169 flights)
  • 9 AM–12 PM88%(105 flights)
  • 12–3 PM82%(316 flights)
  • 3–6 PM79%(75 flights)
  • 6–9 PM66%(179 flights)
  • 9 PM–12 AM80%(273 flights)
On-time trend by month
83%
May

Jun 69% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%105
July 202567%72
August 202586%79
September 202590%88
October 202584%114
November 202585%102
December 202573%100
January 202668%63
February 202688%68
March 202675%112
April 202682%110
May 202683%104

Keep nerding

Based on 1,141 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.