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Flight Reliability

UA 4672 · United Airlines

Denver → BFL (DEN–BFL)85% of its flights flew this route. The rest (SEA–SFO, DEN–BOI) are included in these numbers.

73
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
17 min
Average arrival delay
0.8%
Cancelled
3 min early
Median arrival delay

Based on 353 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

UA 4672 departing between 3–6 AM arrived on time 92% of the time, versus 72% between 6–9 PM.

Saturday comes out ahead.

A small edge: 77% on time on Saturdays against 70% on Fridays.

A bit behind the DEN–BFL route.

UA 4672 arrived on time 74% of the time, versus 79% across the DEN–BFL route.

A bit behind the United Airlines network.

UA 4672 arrived on time 74% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon74%(50 flights)
  • Tue77%(47 flights)
  • Wed73%(48 flights)
  • Thu75%(48 flights)
  • Fri70%(50 flights)
  • Sat77%(52 flights)
  • Sun76%(53 flights)
On-time by departure window
  • 3–6 AM92%(24 flights)
  • 6–9 AM89%(27 flights)
  • 12–3 PM—(1 flights)
  • 6–9 PM72%(296 flights)
On-time trend by month
94%
May

Jun 40% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202540%30
July 202552%29
August 202539%31
September 202583%30
October 202582%28
November 202590%20
December 202581%31
January 202690%30
February 202678%27
March 202690%31
April 202680%30
May 202694%31
Departures on time
74%
Diverted
0.6%
Flights flown
348
Months covered
12

Same route, other flights

Keep nerding

Based on 353 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.