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Flight Reliability

UA 5276 · United Airlines

Tulsa → Denver (TUL–DEN)92% of its flights flew this route. The rest (ORD–MKE, PIA–ORD) are included in these numbers.

89
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
8 min
Average arrival delay
0.3%
Cancelled
6 min early
Median arrival delay

Based on 361 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

UA 5276 arrived on time 90% of the time on Fridays and just 75% on Saturdays. That gap is worth planning around.

A bit ahead of the United Airlines network.

UA 5276 arrived on time 82% of the time, versus 79% across the United Airlines network.

It basically never cancels.

Out of 361 scheduled flights, only 0.3% were cancelled.

Slipping a little lately.

UA 5276 arrived on time 77% of the time over the last three months in the data, compared with 82% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(52 flights)
  • Tue77%(52 flights)
  • Wed84%(51 flights)
  • Thu80%(49 flights)
  • Fri90%(52 flights)
  • Sat75%(52 flights)
  • Sun85%(52 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM82%(359 flights)
On-time trend by month
100%
May

Jun 86% → May 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%28
July 202577%31
August 202577%31
September 202590%30
October 202594%31
November 202583%29
December 202568%31
January 202693%30
February 202686%28
March 202677%30
April 202653%30
May 2026100%31
Departures on time
83%
Diverted
0%
Flights flown
360
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.