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Flight Reliability

UA 4466 · United Airlines

SGF → Chicago (SGF–ORD)97% of its flights flew this route. The rest (ORD–MSN, IAD–RDU) are included in these numbers.

49
Bring Snacks
WanderNerd Reliability Score
66%
Arrive within 15 minutes
27 min
Average arrival delay
3.6%
Cancelled
5 min
Median arrival delay

Based on 362 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

UA 4466 arrived on time 71% of the time on Thursdays. On Sundays: 57%.

A bit behind the SGF–ORD route.

UA 4466 arrived on time 66% of the time, versus 70% across the SGF–ORD route.

Lagging the United Airlines network.

UA 4466 arrived on time 66% of the time, versus 79% across the United Airlines network.

Keep a backup plan handy.

UA 4466 was cancelled 3.6% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon70%(50 flights)
  • Tue69%(48 flights)
  • Wed59%(51 flights)
  • Thu71%(49 flights)
  • Fri66%(50 flights)
  • Sat71%(48 flights)
  • Sun57%(51 flights)
On-time by departure window
  • 9 AM–12 PM—(6 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM66%(337 flights)
On-time trend by month
45%
May

Jun 76% → May 45% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202576%29
July 202558%31
August 202589%28
September 202573%30
October 202571%31
November 202568%25
December 202557%30
January 202666%29
February 202682%28
March 202661%28
April 202648%29
May 202645%29
Departures on time
69%
Diverted
0.6%
Flights flown
347
Months covered
12

Same route, other flights

Keep nerding

Based on 362 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.