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Flight Reliability

UA 4727 · United Airlines

Denver → Oklahoma City (DEN–OKC)99% of its flights flew this route. The rest (DEN–XNA, ORD–MSN) are included in these numbers.

73
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
10 min
Average arrival delay
1.1%
Cancelled
7 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

UA 4727 arrived on time 81% of the time on Saturdays and just 64% on Sundays. That gap is worth planning around.

A bit behind the DEN–OKC route.

UA 4727 arrived on time 73% of the time, versus 77% across the DEN–OKC route.

A bit behind the United Airlines network.

UA 4727 arrived on time 73% of the time, versus 79% across the United Airlines network.

Ticking up lately.

UA 4727 arrived on time 82% of the time over the last three months in the data, compared with 77% in the three months before that.

The breakdown

On-time by weekday
  • Mon75%(51 flights)
  • Tue71%(51 flights)
  • Wed69%(52 flights)
  • Thu78%(51 flights)
  • Fri76%(49 flights)
  • Sat81%(48 flights)
  • Sun64%(52 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 6–9 PM73%(353 flights)
On-time trend by month
78%
May

Jun 59% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202559%29
July 202553%30
August 202552%31
September 202587%30
October 202584%31
November 202569%29
December 202574%31
January 202676%29
February 202682%28
March 202674%31
April 202693%28
May 202678%27
Departures on time
71%
Diverted
0.8%
Flights flown
354
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.