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Flight Reliability

UA 5498 · United Airlines

Denver → BIL (DEN–BIL)91% of its flights flew this route. The rest (ORD–DSM, ORD–DAY) are included in these numbers.

71
Usually Fine
WanderNerd Reliability Score
76%
Arrive within 15 minutes
11 min
Average arrival delay
2.4%
Cancelled
1 min early
Median arrival delay

Based on 332 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

UA 5498 departing between 3–6 PM arrived on time 77% of the time, versus 58% between 9 PM–12 AM.

Sunday scaries are real for this one.

UA 5498 arrived on time 82% of the time on Wednesdays and just 65% on Sundays. That gap is worth planning around.

A bit behind the DEN–BIL route.

UA 5498 arrived on time 76% of the time, versus 80% across the DEN–BIL route.

A bit behind the United Airlines network.

UA 5498 arrived on time 76% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon72%(47 flights)
  • Tue77%(44 flights)
  • Wed82%(45 flights)
  • Thu76%(49 flights)
  • Fri76%(46 flights)
  • Sat81%(43 flights)
  • Sun65%(48 flights)
On-time by departure window
  • 12–3 PM—(5 flights)
  • 3–6 PM77%(292 flights)
  • 6–9 PM—(1 flights)
  • 9 PM–12 AM58%(24 flights)
On-time trend by month
90%
May

Jun 60% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202560%30
July 202570%30
August 202567%30
September 202566%29
October 202590%31
November 202578%27
December 202572%29
February 202665%17
March 202683%29
April 202687%30
May 202690%31
Departures on time
79%
Diverted
0.6%
Flights flown
322
Months covered
12

Same route, other flights

Keep nerding

Based on 332 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.