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Flight Reliability

UA 4644 · United Airlines

CRW → Chicago (CRW–ORD)85% of its flights flew this route. The rest (ATW–ORD, ABQ–SFO) are included in these numbers.

13
Bring Snacks
WanderNerd Reliability Score
47%
Arrive within 15 minutes
53 min
Average arrival delay
4.7%
Cancelled
18 min
Median arrival delay

Based on 365 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 4644 departing between 6–9 AM arrived on time 79% of the time, versus 42% between 3–6 PM.

Skip Saturday if you can.

UA 4644 arrived on time 54% of the time on Mondays. On Saturdays: 41%.

Well behind the CRW–ORD route.

UA 4644 arrived on time 47% of the time, versus 65% across the CRW–ORD route.

Well behind the United Airlines network.

UA 4644 arrived on time 47% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon54%(48 flights)
  • Tue47%(51 flights)
  • Wed43%(51 flights)
  • Thu52%(50 flights)
  • Fri44%(48 flights)
  • Sat41%(49 flights)
  • Sun49%(49 flights)
On-time by departure window
  • 6–9 AM79%(47 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM42%(297 flights)
On-time trend by month
53%
May

Jun 43% → May 53% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202543%30
July 202526%31
August 202545%29
September 202540%30
October 202542%31
November 202535%26
December 202543%30
January 202659%29
February 202664%28
March 202639%26
April 202681%26
May 202653%30
Departures on time
64%
Diverted
0.5%
Flights flown
346
Months covered
12

Same route, other flights

Keep nerding

Based on 365 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.