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Route Reliability

Cincinnati → Washington

CVG–IAD · 388 miles · Cincinnati/Northern Kentucky International Airport to Washington Dulles International Airport

83
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
9 min
Average arrival delay
1.5%
Cancelled
1,232
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 83% of the time across 1,232 flights. No comparison to make.

What the data says

Morning-you made the right choice.

CVG–IAD flights departing between 6–9 AM arrived on time 93% of the time, versus 75% between 12–3 PM.

Skip Wednesday if you can.

CVG–IAD flights arrived on time 88% of the time on Saturdays. On Wednesdays: 78%.

Trending in the right direction.

CVG–IAD flights arrived on time 88% of the time over the last three months in the data, compared with 76% in the three months before that.

Flights on this route

The breakdown

On-time by weekday
  • Mon80%(187 flights)
  • Tue83%(147 flights)
  • Wed78%(161 flights)
  • Thu86%(168 flights)
  • Fri83%(191 flights)
  • Sat88%(172 flights)
  • Sun80%(183 flights)
On-time by departure window
  • 6–9 AM93%(189 flights)
  • 9 AM–12 PM90%(343 flights)
  • 12–3 PM75%(372 flights)
  • 6–9 PM77%(305 flights)
On-time trend by month
92%
May

Jun 71% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%129
July 202567%99
August 202583%101
September 202593%85
October 202593%109
November 202589%103
December 202574%115
January 202682%68
February 202672%65
March 202682%108
April 202691%116
May 202692%111

Same trip, other airports

Keep nerding

Based on 1,232 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.