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Flight Reliability

UA 4416 · United Airlines

Chicago → St. Louis (ORD–STL)93% of its flights flew this route. The rest (PWM–IAD, GRR–ORD) are included in these numbers.

49
Bring Snacks
WanderNerd Reliability Score
64%
Arrive within 15 minutes
31 min
Average arrival delay
2.7%
Cancelled
1 min
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 4416 departing between 9 AM–12 PM arrived on time 75% of the time, versus 55% between 3–6 PM.

Friday is doing you no favors.

UA 4416 arrived on time 71% of the time on Sundays and just 56% on Fridays. That gap is worth planning around.

A bit behind the ORD–STL route.

UA 4416 arrived on time 64% of the time, versus 69% across the ORD–STL route.

Well behind the United Airlines network.

UA 4416 arrived on time 64% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon68%(50 flights)
  • Tue65%(51 flights)
  • Wed59%(51 flights)
  • Thu59%(51 flights)
  • Fri56%(50 flights)
  • Sat69%(48 flights)
  • Sun71%(52 flights)
On-time by departure window
  • 9 AM–12 PM75%(16 flights)
  • 3–6 PM55%(97 flights)
  • 6–9 PM67%(240 flights)
On-time trend by month
71%
May

Jun 67% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202547%30
August 202579%28
September 202573%30
October 202571%31
November 202561%28
December 202558%31
January 202661%28
February 202668%28
March 202645%29
April 202666%29
May 202671%31
Departures on time
67%
Diverted
0.3%
Flights flown
353
Months covered
12

Same route, other flights

Keep nerding

Based on 364 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.