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Route Reliability

CHO → Washington

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

83
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
13 min
Average arrival delay
1.9%
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 85% of the time across 1,141 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

CHO–IAD flights departing between 3–6 PM arrived on time 94% of the time, versus 75% between 6–9 PM.

Skip Monday if you can.

CHO–IAD flights arrived on time 91% of the time on Wednesdays. On Mondays: 81%.

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
  • Mon81%(174 flights)
  • Tue85%(157 flights)
  • Wed91%(155 flights)
  • Thu85%(174 flights)
  • Fri83%(157 flights)
  • Sat85%(132 flights)
  • Sun83%(168 flights)
On-time by departure window
  • 6–9 AM88%(321 flights)
  • 9 AM–12 PM86%(329 flights)
  • 12–3 PM83%(295 flights)
  • 3–6 PM94%(18 flights)
  • 6–9 PM75%(154 flights)
On-time trend by month
81%
May

Jun 76% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%105
July 202582%71
August 202589%79
September 202596%88
October 202589%114
November 202590%102
December 202576%101
January 202686%62
February 202685%67
March 202682%114
April 202687%110
May 202681%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.