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Route Reliability

Kansas City → Washington

MCI–IAD · 926 miles · Kansas City International Airport to Washington Dulles International Airport

89
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
2 min
Average arrival delay
1.0%
Cancelled
714
Flights in the data

Data through May 2026.

United Airlines is the only airline in this data on this route, arriving on time 86% of the time across 714 flights. No comparison to make.

What the data says

Departure time hasn't mattered much.

On-time rates stay between 86% and 87% across the day.

Wednesday is the weak spot.

MCI–IAD flights arrived on time 93% of the time on Saturdays. On Wednesdays: 82%.

Best historical flights

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

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon82%(102 flights)
  • Tue88%(96 flights)
  • Wed82%(101 flights)
  • Thu87%(102 flights)
  • Fri87%(102 flights)
  • Sat93%(99 flights)
  • Sun84%(102 flights)
On-time by departure window
  • 12–3 PM86%(359 flights)
  • 3–6 PM87%(345 flights)
On-time trend by month
87%
May

Jun 68% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202568%57
July 202564%59
August 202588%58
September 202593%56
October 202595%62
November 202588%58
December 202586%62
January 202688%56
February 202695%55
March 202683%60
April 2026100%60
May 202687%61

Same trip, other airports

Keep nerding

Based on 714 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.