Skip to content
WanderNerd
Check a flight

Flight Reliability

UA 4634 · United Airlines

FAR → Denver (FAR–DEN)99% of its flights flew this route. The rest (DEN–MYR, DEN–COU) are included in these numbers.

49
Bring Snacks
WanderNerd Reliability Score
64%
Arrive within 15 minutes
31 min
Average arrival delay
2.2%
Cancelled
1 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Friday is doing you no favors.

UA 4634 arrived on time 71% of the time on Tuesdays. On Fridays: 58%.

A bit behind the FAR–DEN route.

UA 4634 arrived on time 64% of the time, versus 70% across the FAR–DEN route.

Lagging the United Airlines network.

UA 4634 arrived on time 64% of the time, versus 79% across the United Airlines network.

Trending in the right direction.

UA 4634 arrived on time 76% of the time over the last three months in the data, compared with 63% in the three months before that.

The breakdown

On-time by weekday
  • Mon62%(52 flights)
  • Tue71%(49 flights)
  • Wed69%(51 flights)
  • Thu58%(50 flights)
  • Fri58%(52 flights)
  • Sat66%(47 flights)
  • Sun67%(48 flights)
On-time by departure window
  • 9 AM–12 PM—(4 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM64%(344 flights)
On-time trend by month
73%
May

Jun 32% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202532%28
July 202540%30
August 202553%30
September 202569%26
October 202574%31
November 202583%30
December 202560%30
January 202660%30
February 202669%26
March 202676%29
April 202679%29
May 202673%30
Departures on time
69%
Diverted
1.1%
Flights flown
349
Months covered
12

Same route, other flights

Keep nerding

Based on 361 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.