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Route Reliability

Los Angeles → Denver

LAX–DEN · 862 miles · Los Angeles International Airport to Denver International Airport

87
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
3 min
Average arrival delay
0.5%
Cancelled
7,729
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines87%3,062 flights
  2. 2.Frontier Airlines82%731 flights
  3. 3.Delta Air Lines80%1,080 flights
  4. 4.American Airlines80%925 flights
  5. 5.Southwest Airlines77%1,931 flights

What the data says

Morning-you made the right choice.

LAX–DEN flights departing between 3–6 AM arrived on time 96% of the time, versus 54% between 9 PM–12 AM.

Wednesday has been the better bet.

A small edge: 84% on time on Wednesdays against 81% on Fridays.

United Airlines runs this route best.

United Airlines arrived on time 87% of the time on this route; Southwest Airlines managed 77%.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon82%(1135 flights)
  • Tue82%(1036 flights)
  • Wed84%(1071 flights)
  • Thu81%(1122 flights)
  • Fri81%(1134 flights)
  • Sat82%(1029 flights)
  • Sun83%(1142 flights)
On-time by departure window
  • 3–6 AM96%(564 flights)
  • 6–9 AM89%(2010 flights)
  • 9 AM–12 PM86%(938 flights)
  • 12–3 PM76%(1799 flights)
  • 3–6 PM71%(992 flights)
  • 6–9 PM81%(1325 flights)
  • 9 PM–12 AM54%(41 flights)
On-time trend by month
84%
May

Jun 77% → May 84% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%656
July 202573%666
August 202576%648
September 202582%647
October 202586%682
November 202587%633
December 202581%645
January 202690%600
February 202684%546
March 202680%629
April 202689%630
May 202684%687

Same trip, other airports

Keep nerding

Based on 7,729 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.