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WanderNerd

Flight Reliability

UA 4705 · United Airlines

Denver → HLN (DENHLN)91% of its flights flew this route. The rest (DEN–SAF) are included in these numbers.

67
Usually Fine
WanderNerd Reliability Score
75%
Arrive within 15 minutes
19 min
Average arrival delay
2.5%
Cancelled
5 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

UA 4705 departing between 6–9 AM arrived on time 91% of the time, versus 73% between 6–9 PM.

Friday is doing you no favors.

UA 4705 arrived on time 85% of the time on Thursdays and just 64% on Fridays. That gap is worth planning around.

A bit behind the DEN–HLN route.

UA 4705 arrived on time 75% of the time, versus 79% across the DEN–HLN route.

A bit behind the United Airlines network.

UA 4705 arrived on time 75% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon80%(51 flights)
  • Tue76%(49 flights)
  • Wed80%(51 flights)
  • Thu85%(48 flights)
  • Fri64%(50 flights)
  • Sat73%(52 flights)
  • Sun66%(53 flights)
On-time by departure window
  • 6–9 AM91%(32 flights)
  • 6–9 PM73%(322 flights)
On-time trend by month
87%
May

Jun 43% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202543%28
July 202552%27
August 202548%29
September 202573%30
October 202581%31
November 202586%29
December 202581%31
January 202684%31
February 202689%27
March 202680%30
April 202690%30
May 202687%31
Departures on time
74%
Diverted
0.3%
Flights flown
354
Months covered
12

Based on 364 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.