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Flight Reliability

UA 5303 · United Airlines

Denver → RAP (DEN–RAP)95% of its flights flew this route. The rest (ORD–GSO, DEN–SUN) are included in these numbers.

79
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
14 min
Average arrival delay
0.3%
Cancelled
7 min early
Median arrival delay

Based on 354 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 5303 departing between 9 PM–12 AM arrived on time 90% of the time, versus 31% between 3–6 PM.

Saturdays have been rough.

UA 5303 arrived on time 82% of the time on Mondays and just 66% on Saturdays. That gap is worth planning around.

A bit behind the United Airlines network.

UA 5303 arrived on time 76% of the time, versus 79% across the United Airlines network.

It basically never cancels.

Out of 354 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon82%(50 flights)
  • Tue79%(52 flights)
  • Wed82%(49 flights)
  • Thu78%(51 flights)
  • Fri71%(51 flights)
  • Sat66%(47 flights)
  • Sun71%(52 flights)
On-time by departure window
  • 3–6 PM31%(16 flights)
  • 6–9 PM75%(274 flights)
  • 9 PM–12 AM90%(62 flights)
On-time trend by month
65%
May

Jun 50% → May 65% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%30
July 202559%27
August 202565%31
September 202582%27
October 202597%30
November 202597%29
December 202555%29
January 202687%31
February 202686%28
March 202670%30
April 202697%29
May 202665%31
Departures on time
75%
Diverted
0.3%
Flights flown
352
Months covered
12

Same route, other flights

Keep nerding

Based on 354 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.