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Flight Reliability

UA 2240 · United Airlines

Denver → Los Angeles (DEN–LAX)80% of its flights flew this route. The rest (EWR–LAX, COS–DEN) are included in these numbers.

84
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
8 min
Average arrival delay
0.5%
Cancelled
2 min early
Median arrival delay

Based on 409 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

UA 2240 departing between 3–6 PM arrived on time 79% of the time, versus 70% between 6–9 PM.

Sunday scaries are real for this one.

UA 2240 arrived on time 86% of the time on Mondays. On Sundays: 72%.

Ticking up lately.

UA 2240 arrived on time 86% 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
  • Mon86%(58 flights)
  • Tue76%(58 flights)
  • Wed83%(58 flights)
  • Thu72%(58 flights)
  • Fri76%(59 flights)
  • Sat81%(58 flights)
  • Sun72%(58 flights)
On-time by departure window
  • 3–6 PM79%(377 flights)
  • 6–9 PM70%(30 flights)
On-time trend by month
78%
May

Jun 63% → May 78% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202563%30
July 202558%31
August 202568%31
September 202577%30
October 202587%31
November 202576%29
December 202568%31
January 202681%31
February 202696%28
March 202689%53
April 202690%31
May 202678%51
Departures on time
78%
Diverted
0%
Flights flown
407
Months covered
12

Same route, other flights

Keep nerding

Based on 409 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.