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Flight Reliability

UA 4629 · United Airlines

Denver → FAR (DEN–FAR)100% of its flights flew this route. The rest (DEN–FAT) are included in these numbers.

83
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
5 min
Average arrival delay
1.9%
Cancelled
10 min early
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

UA 4629 arrived on time 94% of the time on Tuesdays and just 75% on Sundays. That gap is worth planning around.

A bit ahead of the DEN–FAR route.

UA 4629 arrived on time 83% of the time, versus 77% across the DEN–FAR route.

A bit ahead of the United Airlines network.

UA 4629 arrived on time 83% of the time, versus 79% across the United Airlines network.

Trending in the right direction.

UA 4629 arrived on time 89% of the time over the last three months in the data, compared with 74% in the three months before that.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue94%(50 flights)
  • Wed85%(52 flights)
  • Thu80%(49 flights)
  • Fri85%(52 flights)
  • Sat82%(51 flights)
  • Sun75%(51 flights)
On-time by departure window
  • 12–3 PM83%(356 flights)
  • 6–9 PM—(1 flights)
On-time trend by month
90%
May

Jun 48% → May 90% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202548%29
July 202584%31
August 202594%31
September 2025100%30
October 202594%31
November 202586%29
December 202577%30
January 202667%30
February 202678%27
March 202683%29
April 202693%29
May 202690%31
Departures on time
87%
Diverted
0%
Flights flown
357
Months covered
12

Same route, other flights

Keep nerding

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.