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Flight Reliability

UA 4446 · United Airlines

Washington → Newark (DCA–EWR)84% of its flights flew this route. The rest (RIC–IAD, EWR–PIT) are included in these numbers.

74
Usually Fine
WanderNerd Reliability Score
80%
Arrive within 15 minutes
11 min
Average arrival delay
3.1%
Cancelled
11 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 4446 departing between 6–9 AM arrived on time 92% of the time, versus 79% between 3–6 PM.

Skip Saturday if you can.

UA 4446 arrived on time 88% of the time on Mondays. On Saturdays: 74%.

Better than the DCA–EWR route average.

UA 4446 arrived on time 80% of the time, versus 71% across the DCA–EWR route.

Keep a backup plan handy.

UA 4446 was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon88%(49 flights)
  • Tue85%(48 flights)
  • Wed79%(52 flights)
  • Thu77%(47 flights)
  • Fri76%(49 flights)
  • Sat74%(49 flights)
  • Sun83%(47 flights)
On-time by departure window
  • 6–9 AM92%(13 flights)
  • 9 AM–12 PM79%(290 flights)
  • 12–3 PM—(6 flights)
  • 3–6 PM79%(14 flights)
  • 6–9 PM83%(18 flights)
On-time trend by month
87%
May

Jun 89% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%28
July 202567%30
August 202581%31
September 202583%29
October 202567%30
November 202564%25
December 202583%23
January 202682%27
February 202685%26
March 202690%31
April 202683%30
May 202687%31
Departures on time
78%
Diverted
0.3%
Flights flown
341
Months covered
12

Same route, other flights

Keep nerding

Based on 353 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.