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Flight Reliability

UA 1199 · United Airlines

Denver → Indianapolis (DEN–IND)81% of its flights flew this route. The rest (FCA–DEN, RNO–DEN) are included in these numbers.

79
Usually Fine
WanderNerd Reliability Score
74%
Arrive within 15 minutes
12 min
Average arrival delay
0.5%
Cancelled
3 min early
Median arrival delay

Based on 428 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

UA 1199 departing between 6–9 PM arrived on time 93% of the time, versus 66% between 3–6 PM.

Skip Tuesday if you can.

UA 1199 arrived on time 80% of the time on Wednesdays. On Tuesdays: 71%.

A bit behind the United Airlines network.

UA 1199 arrived on time 74% of the time, versus 79% across the United Airlines network.

The breakdown

On-time by weekday
  • Mon72%(60 flights)
  • Tue71%(61 flights)
  • Wed80%(61 flights)
  • Thu74%(58 flights)
  • Fri77%(61 flights)
  • Sat74%(61 flights)
  • Sun73%(63 flights)
On-time by departure window
  • 12–3 PM88%(82 flights)
  • 3–6 PM66%(276 flights)
  • 6–9 PM93%(67 flights)
On-time trend by month
74%
May

Jun 40% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202540%30
July 202537%30
August 202552%31
September 202567%30
October 202584%31
November 202593%29
December 202584%31
January 202681%31
February 202686%28
March 202682%34
April 202695%58
May 202674%62
Departures on time
76%
Diverted
0.2%
Flights flown
425
Months covered
12

Same route, other flights

Keep nerding

Based on 428 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.