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Flight Reliability

UA 5829 · United Airlines

BIL → Denver (BIL–DEN)83% of its flights flew this route. The rest (DEN–SLC, SMF–LAX) are included in these numbers.

100
Nerd Approved
WanderNerd Reliability Score
95%
Arrive within 15 minutes
12 min early
Average arrival delay
0.5%
Cancelled
24 min early
Median arrival delay

Based on 211 historical flights. Data through May 2026.

What the data says

Skip Tuesday if you can.

UA 5829 arrived on time 100% of the time on Mondays. On Tuesdays: 89%.

Better than the BIL–DEN route average.

UA 5829 arrived on time 95% of the time, versus 81% across the BIL–DEN route.

Well ahead of the United Airlines network.

UA 5829 arrived on time 95% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon100%(29 flights)
  • Tue89%(27 flights)
  • Wed100%(34 flights)
  • Thu94%(34 flights)
  • Fri93%(28 flights)
  • Sat96%(28 flights)
  • Sun90%(30 flights)
On-time by departure window
  • 3–6 AM95%(176 flights)
  • 6–9 AM—(5 flights)
  • 9 AM–12 PM95%(21 flights)
  • 12–3 PM—(8 flights)
On-time trend by month
100%
May

Jun 93% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202593%30
July 202590%30
August 202594%18
October 2025100%31
November 202590%29
April 202690%10
May 2026100%50
Departures on time
92%
Diverted
0%
Flights flown
210
Months covered
10

Same route, other flights

Keep nerding

Based on 211 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.